Pragmata Walkthrough: Sector 3 Terra Dome Guide (April 2026)

If you have made it to Sector 3 in Pragmata, congratulations — you are about to tackle the longest and most complex sector in the game so far. This Pragmata walkthrough for Sector 3 Terra Dome covers every area from the entrance to the final boss fight with the Garden Keeper, including all Safe Box locations, Lim Regulator puzzles, and the critical mission to free Eight.

Terra Dome is an artificial nature reserve built inside the Cradle lunar facility. It serves as a massive greenhouse that has been overgrown with wild vegetation after the systems went haywire. The entire sector spans multiple distinct blocks, each with its own environmental challenges, enemy types, and collectibles to discover.

Our team spent hours mapping every corner of this sector to make sure you do not miss a single collectible or get stuck on any puzzle. This walkthrough is organized block by block, matching the game’s own area divisions. We cover the Terra Dome Entrance (Block 01), the Plant Factory, the Eco Modeling Lab, the Center Hall where you meet Eight, Soil Research, and the Terrarium where the Garden Keeper boss awaits.

Each section includes enemy strategies, puzzle solutions, and the exact locations of every Safe Box and Read Earth Memory. Before diving in, we strongly recommend upgrading your Object Scan ability if you have not already. Several players on community forums have noted that collectible hunting becomes far easier with an upgraded scan, and a few items in Terra Dome are easy to walk right past without it.

One more thing to keep in mind: Terra Dome is long. Community members on Reddit regularly describe it as one of the longest stretches in Pragmata, often taking over an hour on a first playthrough. Take advantage of the Escape Hatches scattered throughout the sector to return to the Shelter when you need to restock or upgrade. Your puzzle progress and collectibles are saved even when you leave.

Terra Dome Entrance (Block 01)

Block 01 serves as your introduction to the Terra Dome environment. When you first enter through the airlock, you will notice the atmosphere change immediately — lush greenery overtakes the sterile lunar facility aesthetic you have seen in previous sectors. The airlock itself has a brief loading transition, and the moment you step through, the ambient sounds shift to birdsong and rushing water.

Head forward along the main path. You will encounter a few Lancer enemies right away, which are straightforward melee attackers. Use your standard dodge-and-counter rhythm to deal with them. If you have been upgrading your combat abilities through previous sectors, these opening fights should feel like a warmup. The Lancers here have the same attack patterns you encountered in Sectors 1 and 2, so there are no surprises.

Before reaching the first sealed door, look to your left. There is a small alcove tucked behind some overgrown foliage. Inside, you will find the first Safe Box in Terra Dome. This is one of the easier collectibles to spot, but many players rush past it because the foliage partially obscures the alcove entrance. The Safe Box contains basic Upgrade Components that you can use at any Unit Printer.

First Gen Chip Puzzle

Shortly after the Safe Box, you will encounter your first Gen Chip puzzle of the sector. The Gen Chip system in Pragmata requires you to slot chips into a hacking matrix to unlock doors and disable barriers. For this first puzzle, the solution is straightforward and serves as a tutorial for the more complex puzzles ahead.

Pick up the Gen Chip from the pedestal near the locked door. Insert it into the hacking matrix terminal. You need to align the chip’s signal pattern with the terminal’s matching frequency. Rotate the chip until the indicator turns green, then confirm the connection. The door ahead will open with a satisfying mechanical sound.

If you are new to the Gen Chip system, here is a quick summary. Gen Chips are reusable hacking tools that let Hugh interface with Cradle’s locked systems. Each puzzle involves rotating or repositioning chip nodes to match a target pattern. Later puzzles get significantly more complex, requiring multiple chips and layered configurations. Use this early one to get comfortable with the rotation mechanics and the visual feedback the game provides when alignment is correct.

Reaching the Lim Regulator Hub

Continue through the opened door and follow the corridor. You will pass through a large observation deck that overlooks the interior of the Terra Dome. Take a moment to appreciate the view — it gives you a sense of just how massive this sector is. You can see the Plant Factory, the Eco Modeling Lab, and the distant Terrarium dome from this vantage point. The observation deck also has a bench where you can review your current loadout and inventory.

After the observation deck, you will reach a split path. The left path leads to the Plant Factory, and the right path leads to the Eco Modeling Lab. Both areas contain Lim Regulators that must be rebooted to clear the overgrowth blocking the central lift. You can tackle them in either order, but we recommend starting with the Plant Factory since it grants you the Pulse Carbine early, which makes subsequent combat encounters much more manageable.

Before choosing a path, check the small room behind the Lim Regulator hub terminal. There is another Safe Box here containing Upgrade Components. This room also has a Unit Printer where you can spend Lunafilament on gear upgrades if you have been collecting it throughout the game. There is a Read Earth Memory terminal in this room as well, which provides lore about the Terra Dome’s construction and purpose within the Cradle facility. This is one of six REMs you can find across Terra Dome.

There is also an Escape Hatch in the hub area. If you need to return to the Shelter for any reason — to buy items, upgrade abilities, or simply save your progress — this is your fastest route back. The enemies in the Entrance area respawn when you return from the Shelter, but all puzzle progress is retained.

Plant Factory — Lim Regulator Guide

The Plant Factory is the first of two areas where you must reboot Lim Regulators to progress. Lim Regulators are environmental control stations that manage the plant growth throughout Terra Dome. When they go offline, the vegetation grows unchecked and blocks critical pathways. Rebooting them is the only way to clear the path to the central lift.

Enter the Plant Factory through the left door from the hub. The corridor descends into a humid, fog-filled production area where rows of automated plant cultivation machinery line the walls. The atmosphere is thick, and visibility drops noticeably compared to the entrance area. The fog effect is not just visual — it slightly reduces your Object Scan range, making it harder to spot distant collectibles.

Acquiring the Pulse Carbine

About halfway through the first corridor, you will find the Pulse Carbine resting on a workbench. The workbench is highlighted with a subtle glow, making it hard to miss. This is your first new weapon in Terra Dome, and it fills an important niche in your arsenal as a dedicated ranged option.

The Pulse Carbine is a rapid-fire ranged weapon that excels at hitting enemies at medium distance. It uses energy cells instead of ammunition, so you never run out of ammo — but it does have a cooldown period if you fire it continuously for too long. Short controlled bursts are more effective than holding the trigger down. Each burst of three to five shots deals respectable damage while keeping the heat buildup manageable.

Pick up the Pulse Carbine and equip it in your weapon slot. The game walks you through a brief tutorial on how it works, including the heat mechanic and the burst-fire rhythm. After the tutorial, you will face your first combat encounter using the new weapon against a wave of Lancers and a single Crusher enemy. This encounter is designed to teach you how to combine ranged and melee combat, switching between weapons as the situation demands.

Crusher Enemy Strategy

The Crusher is a heavy enemy type that charges at you with powerful lunging attacks. It has thick armor on its front, making frontal assault ineffective with most weapons. You first encounter them alongside Lancers in the Plant Factory, and they appear throughout the rest of Terra Dome as well.

Here is how to deal with Crushers efficiently. Dodge their charge attack by sidestepping at the last moment. The timing window is generous — you do not need frame-perfect dodges. Sidestepping leaves the Crusher vulnerable for about two seconds as it recovers from its missed charge. Use that window to land a Critical Shot with your standard weapon or fire a burst from the Pulse Carbine into their exposed back. Three to four successful punish windows will take down a Crusher.

Do not try to block Crusher attacks. Their hits deal massive stagger damage and will leave you open to follow-up strikes from other enemies. Prioritize killing Crushers first in mixed encounters because their charge attacks can disrupt your positioning against smaller foes like Lancers. If a Crusher charges while you are fighting Lancers, break off your current attack and dodge immediately.

One advanced tactic: if you have Sticky Bombs (found later in the Eco Modeling Lab), you can stick one to a Crusher during its recovery window. The bomb detonation stuns the Crusher again, effectively giving you two consecutive punish windows. This combo works well if you revisit the Plant Factory after getting Sticky Bombs from the Eco Modeling Lab.

Plant Factory Lim Regulator Puzzle

After clearing the combat encounter, proceed deeper into the Plant Factory. You will reach a large chamber with the Lim Regulator terminal in the center. However, the terminal is behind a locked door that requires a Gen Chip to open. The chamber has multiple levels connected by ladders and catwalks, giving it a vertical layout that the game uses for several traversal puzzles.

The Gen Chip for this door is located on the upper walkway. Climb the ladder on the east side of the chamber and follow the catwalk around to find the chip on a pedestal. Watch for a Lancer patrol on the catwalk — the tight walkway makes dodging difficult, so consider using the Pulse Carbine to take them out at range before climbing up.

Return to the locked door and use the hacking matrix to unlock it. The Gen Chip puzzle here requires a two-step rotation. First, align the outer ring of the chip’s signal pattern. Then rotate the inner ring to match. Both rings need to show green indicators simultaneously for the door to unlock.

Interact with the Lim Regulator terminal to begin the reboot sequence. A brief cutscene plays showing the automated systems coming back online. The vegetation near the central lift will begin to recede. You have completed one of two required regulator reboots. One down, one to go.

Before leaving the Plant Factory, check the storage room adjacent to the Lim Regulator chamber. There is a Safe Box inside containing a Mod that enhances your Pulse Carbine’s fire rate. This is a significant upgrade that makes the weapon noticeably more effective, so do not skip it. There is also a Read Earth Memory in this room that adds lore about the Cradle facility’s agricultural systems and the history of food production on the lunar base.

Eco Modeling Lab — Lim Regulator Guide

Return to the hub area and take the right path to the Eco Modeling Lab. This area is more puzzle-focused than the Plant Factory, with multiple Gen Chip challenges and platforming sections. It is also where you encounter Creeper enemies for the first time, which are arguably the most annoying enemy type in the entire sector.

The Eco Modeling Lab consists of a series of interconnected research chambers. Unlike the Plant Factory’s vertical layout, the lab sprawls horizontally with branching corridors and dead ends. Pay attention to the minimap, and mark any dead-end corridors you have already checked to avoid revisiting them.

Sticky Bombs Acquisition

Early in the Eco Modeling Lab, you will find Sticky Bombs in a supply cache. The cache is in the first room on your right as you enter the lab. These explosives adhere to surfaces and enemies, detonating after a short delay of about two seconds. They are essential for destroying cracked walls that hide secret areas and collectibles throughout Terra Dome.

Sticky Bombs work on a cooldown system rather than limited ammunition. You can throw one every few seconds. They deal area damage, making them effective against groups of weaker enemies. They also stun larger enemies briefly on detonation, giving you a safe window to reposition or follow up with another weapon. The stun effect works on Crushers and even the Garden Keeper boss, making Sticky Bombs a valuable utility tool throughout the rest of the sector.

Equip Sticky Bombs and test them on the cracked wall directly across from where you picked them up. Behind that wall is a small room with a Safe Box containing Pure Lunum, a rare upgrade material. Pure Lunum is used for high-tier upgrades at the Unit Printer, so every piece counts. This is the first of two Pure Lunum pieces you can find in Terra Dome.

Creeper Enemy Strategy

Creepers are the most frustrating enemy type in Terra Dome. They can turn nearly invisible and prefer to ambush you from behind. Community forums are full of players describing Creeper encounters as jumpscare moments, and for good reason — the first time a Creeper decloaks behind you and lands a backstab, you will probably jump in your seat.

The key to fighting Creepers is audio awareness. You can hear a distinctive electronic distortion sound when a Creeper is nearby and cloaked. The sound is subtle at first but gets louder as the Creeper moves closer to you. When you hear that sound, immediately stop moving and activate your Object Scan. The scan reveals cloaked Creepers as faint silhouettes for about three to four seconds.

Once revealed, Creepers are not particularly tough. A few shots from the Pulse Carbine or a single Sticky Bomb will take one down. The danger comes from their ambush — a cloaked Creeper that lands a backstab deals heavy damage and applies a brief stun effect that leaves you vulnerable to follow-up attacks from other enemies.

If you stay mobile and listen for the audio cue, you can avoid most of their surprise attacks. In the Eco Modeling Lab, Creepers tend to hide near Gen Chip puzzle terminals. Approach each terminal cautiously and scan the area before interacting with it. This habit will save you health throughout the entire sector. Players who skip the scan step before puzzle interactions consistently report dying to Creeper ambushes.

Eco Modeling Lab Gen Chip Puzzles

The Eco Modeling Lab has two Gen Chip puzzles. The first is in the initial research wing, and the second is near the Lim Regulator terminal at the far end of the lab.

For the first puzzle, you need to find two Gen Chips in the research wing. One is on a shelf in the northeast corner, partially hidden behind fallen equipment that you need to move out of the way. The other is in a locked supply cabinet that requires you to hack a simple terminal nearby. The cabinet terminal hack is straightforward — just a single chip rotation with no interference.

Once you have both chips, insert them into the hacking matrix in the correct orientation. The top chip rotates clockwise and the bottom chip rotates counterclockwise to match the target pattern. Align both chips until both frequency indicators show green, then confirm. A door deeper into the lab will open.

The second Gen Chip puzzle near the Lim Regulator is more complex. You need three chips, and the matrix has a layered configuration. Start by placing the chip with the widest signal band at the base. Then stack the narrower-band chips on top. Rotate each layer until the frequency alignment indicator shows green across all three layers simultaneously. The trick is that adjusting one layer slightly shifts the layers above it, so you may need to fine-tune multiple times. Start from the bottom and work your way up for the most consistent results.

After solving both puzzles, reach the Lim Regulator terminal and initiate the reboot. Another cutscene plays, and the second set of vegetation blocking the central lift clears away. Both Lim Regulators are now online, and the central lift in the hub area becomes operational.

On your way out of the Eco Modeling Lab, look for a vent passage near the entrance that was previously blocked by overgrowth. With the Lim Regulators rebooted, this vent is now accessible. Crawl through it to find a hidden Safe Box with a Cabin Coin inside and a Read Earth Memory that provides additional lore about the Eco Modeling Lab’s original research projects. This Safe Box is one of the most commonly missed collectibles in Terra Dome because players typically do not think to backtrack to the entrance after completing the Lim Regulator.

Center Hall and Meeting Eight

With both Lim Regulators rebooted, return to the hub area. The central lift is now accessible. The heavy vines that were blocking it have receded, revealing a large elevator platform. Step onto the lift platform and activate it to ascend to the Center Hall upper floor.

The Center Hall is a large open chamber with the Terra Dome’s main control systems. Massive screens line the walls, displaying real-time environmental data from across the dome. As you enter, a cutscene triggers automatically. Hugh and Diana discover a containment pod at the center of the room, surrounded by flickering holographic displays. Inside is Eight, a consciousness trapped within the Cradle network.

The cutscene is unskippable and runs for about three minutes. It establishes Eight as a key character in the story and explains the connection between the Terra Dome and the broader narrative about IDUS and the Cradle facility. Pay attention to the dialogue, as it contains hints about upcoming boss mechanics and the themes of the game.

Freeing Eight

Freeing Eight is the primary story objective of Sector 3. After the cutscene, you need to interact with the containment pod terminal. This triggers a hacking sequence where you must break through multiple layers of security encryption. The hacking sequence is unique to this moment in the game and differs from standard Gen Chip puzzles.

The hacking sequence to free Eight works similarly to Gen Chip puzzles but with a time pressure element. You have a limited window to complete each layer before the security system resets and you have to start that layer over. Here are the steps to free Eight in Pragmata Sector 3.

Layer one requires you to align three signal nodes in sequence. Start with the leftmost node and rotate it until it locks into position. Then move to the center node. The right node auto-aligns once the first two are correct. You have about 20 seconds per layer, which is generous for this first challenge.

Layer two introduces interference patterns that shift the nodes slightly after each rotation. Compensate by overshooting your rotation slightly in the direction the interference pushes. For example, if the interference shifts nodes clockwise by one position, rotate one extra position counterclockwise. The interference follows a predictable pattern, so after one or two attempts you will learn to anticipate it.

Layer three is the most intense. All three nodes must be aligned within an eight-second window, and the interference is stronger and less predictable. Our recommendation is to align the center node first, then rapidly do the left and right nodes. The game gives you a small grace period after each correct alignment, so you do not need to be frame-perfect. If you fail, the layer resets but layers one and two remain completed.

Once all three layers are cracked, a lengthy cutscene plays showing Eight being freed from the containment pod. Eight explains their role in the Cradle facility and provides critical information about IDUS, the main antagonist. Eight reveals that IDUS has been corrupting the facility’s systems from within, and that the Lim Regulator malfunctions were not accidents but deliberate sabotage. This is one of the most important story moments in Pragmata, and it sets up the stakes for the remaining sectors.

After the cutscene, Eight joins your party as a support character. Eight can provide tactical assistance during combat, including highlighting weak points on enemies and periodically restoring a small amount of your energy reserves. This makes the upcoming Soil Research and boss fight sections noticeably easier. Eight also adds contextual dialogue during exploration, commenting on the environment and providing hints about nearby collectibles.

Center Hall Collectibles

Before leaving the Center Hall, check the perimeter of the room for collectibles. There is a Safe Box on the west balcony containing a Weapon Slot upgrade, which lets you carry an additional weapon simultaneously. This is one of the most useful upgrades in the game — having quick access to three weapons instead of two dramatically improves your combat flexibility. Make absolutely sure to grab this.

On the east side of the hall, there is a Read Earth Memory terminal that provides background on Eight’s history within the Cradle facility. If you are following the story, this REM is worth reading for the emotional context it adds to the preceding cutscene. It explains how Eight became trapped in the network and why the containment pod was hidden in the Center Hall.

The northern exit from the Center Hall leads to the Soil Research area. Take the southern exit to find an Escape Hatch that connects back to the Shelter. Use this if you need to restock or upgrade before the Soil Research section, which ramps up the difficulty considerably. The Escape Hatch is a smart stopping point if you have been playing for a while and want to take a break.

Soil Research Area Walkthrough

Soil Research is the most mechanically complex section of Terra Dome. It introduces signal jammer puzzles, new enemy types, and the Photon Laser weapon. Players on community forums consistently cite Soil Research as the most frustrating part of Sector 3, primarily because of the signal jammer mechanics that constantly interfere with your hacking abilities.

Enter Soil Research from the Center Hall’s northern exit. The area is a network of research labs and testing chambers, all connected by narrow corridors lined with monitoring equipment. The lighting is dimmer here, and environmental hazards like toxic puddles dot the floor. Walking through toxic puddles deals continuous damage, so watch your step and stick to the clean paths where possible.

Soil Research is divided into two wings — the western research wing and the eastern research wing. Both wings contain signal jammers that must be disabled before you can access the Soil Research data core at the center of the area. The western wing is accessible immediately, while the eastern wing unlocks after you disable the first two jammers in the west.

Photon Laser Acquisition

You will find the Photon Laser in the first major lab room, mounted on a weapons rack near a fallen SectorGuard unit. The SectorGuard appears to have been overwhelmed by the overgrowth, adding a small piece of environmental storytelling about the fate of the dome’s original security force.

The Photon Laser fires a concentrated beam that deals continuous damage to a single target. It is excellent for melting armored enemies and is the recommended weapon for the upcoming Garden Keeper boss fight. Think of it as the heavy hitter of your Terra Dome arsenal — not ideal for every situation, but devastating when applied correctly.

The Photon Laser has a heat mechanic instead of traditional ammo. Holding the fire button builds heat. Release before the heat meter maxes out to avoid an overheat penalty that locks the weapon for several seconds. Proper heat management means firing in controlled bursts of two to three seconds, pausing briefly between each burst to let the heat dissipate. The heat gauge is displayed prominently on your HUD when the weapon is equipped.

Equip the Photon Laser immediately. The next combat encounter pits you against a pair of Crushers and several Lancers, and the Photon Laser makes short work of the Crushers’ armor when aimed at their backs during punish windows. Switch between the Photon Laser for Crushers and your standard weapon or Pulse Carbine for Lancers to handle the mixed group efficiently.

Signal Jammer Puzzle Mechanics

Signal jammers are the core puzzle mechanic in Soil Research. These devices emit interference that blocks your hacking abilities within a certain radius. You cannot interact with any terminals, Gen Chip matrices, or locked doors while a nearby jammer is active. To progress through the area, you need to locate and disable each signal jammer.

There are four signal jammers in Soil Research. Each one requires you to first locate it using your Object Scan — the scan highlights active jammers as red markers on your minimap. Once you find a jammer, approach it and solve a mini hacking puzzle to shut it down. The puzzles are simpler than full Gen Chip challenges, usually requiring just a single chip rotation to match a pattern. The difficulty is not in the puzzle itself but in reaching the jammer while dealing with enemy encounters along the way.

The tricky part is that jammers are often guarded by enemies, and disabling one jammer sometimes triggers a combat encounter with Impeder and Lancer spawns. Our recommended approach is to clear enemies first, then disable the jammer, then repeat. Rushing to disable a jammer while enemies are active often leads to taking damage during the hacking animation, since you are locked in place while solving the puzzle.

The first two jammers are in the western research wing. The first jammer is in a small office space near the entrance to the wing. The second is deeper in the wing, past a corridor filled with toxic puddles. After disabling both western jammers, a sealed door opens and the eastern wing becomes accessible. The third and fourth jammers are in the eastern wing, and they are guarded by tougher enemy compositions that include Creepers alongside Lancers and Impeders.

Once all four are offline, the door to the Soil Research data core opens. The data core is the final room in this section and contains valuable rewards.

Soil Research Data Core

The data core is a large circular room with a central terminal surrounded by holographic displays showing soil analysis data. Interact with the central terminal to download the Training Data stored within. This Training Data grants Hugh a new combat ability that enhances his Overdrive Protocol, making it last approximately 40% longer and deal roughly 25% more damage. This upgrade is extremely valuable for the Garden Keeper boss fight that follows.

Before leaving the data core, look behind the terminal array. There are two Safe Boxes here, tucked against the back wall in a position that is easy to miss if you only focus on the central terminal. One contains Upgrade Components and the other holds a Mini Cabin Figure, a rare collectible item that contributes to a collection achievement. Both are worth picking up.

Exit the data core through the northern passage. This leads to a short corridor lined with plant specimens in glass cases. At the end of the corridor is the Terrarium entrance — the final area of Terra Dome where the Garden Keeper boss fight takes place. There is an Escape Hatch right before the Terrarium entrance. Use it if you want to make a final trip to the Shelter to upgrade gear or restock before the boss.

Soil Research Safe Boxes and REMs

Soil Research has a total of four Safe Boxes and two Read Earth Memories. In addition to the two in the data core, you can find one Safe Box in the western research wing behind a cracked wall that requires Sticky Bombs to destroy. Listen for a hollow sound effect when walking near walls — cracked walls produce a distinct audio cue. The fourth Safe Box is on a raised platform in the eastern wing, reachable by climbing stacked crates near the third signal jammer.

The two Read Earth Memories in Soil Research provide lore about the Cradle facility’s terraforming experiments and the original purpose of the Garden Keeper system. One REM is in the western wing, on a desk in the office near the first signal jammer. The other is in the eastern wing, on a terminal near the fourth jammer. Both add meaningful context to the boss fight that follows, explaining why the Garden Keeper was created and how it became corrupted.

Garden Keeper Boss Fight Strategy

The Garden Keeper is the final boss of Terra Dome and one of the more challenging fights in Pragmata up to this point. It is a massive mechanized guardian that was originally designed to maintain the Terra Dome’s ecosystem but has been corrupted by the same malfunction that disrupted the rest of the Cradle facility. The boss stands roughly three times Hugh’s height and fills a significant portion of the arena.

The fight takes place in the Terrarium, a wide circular arena with limited cover. There are four stone pillars around the perimeter that you can use to break line of sight, but they degrade over the course of the fight and eventually crumble entirely. By Phase 2, most of the pillars will be gone, so do not rely on them as a long-term strategy.

Before the fight begins, equip the Photon Laser and make sure your Overdrive Protocol is upgraded with the Training Data from the Soil Research data core. Having Eight in your party is also a significant advantage, as Eight will periodically highlight the boss’s weak point after certain attack animations.

Garden Keeper Phase 1

Phase 1 lasts until the Garden Keeper loses roughly half its health. In this phase, the boss uses three primary attacks that repeat in a semi-random pattern. Learning to identify each attack by its windup animation is the key to surviving Phase 1.

The first attack is a sweeping vine lash. The Keeper extends its mechanical arms and sweeps them across the arena in a wide arc. This attack covers a huge area but has a visible windup animation — the arms pull back for about one second before the sweep begins. Dodge backward or sidestep through the gap between the two arms. The gap is large enough that you do not need precise timing, but you do need to be aware of your position relative to the arms.

The second attack is a seed barrage. The Keeper fires a cluster of explosive seed pods at your position. The pods have a slight tracking arc, so keep moving laterally to avoid them. If you stop moving, the pods will converge on your location and deal heavy burst damage. The Pulse Carbine is effective at shooting down individual pods mid-flight if you are comfortable with the aiming. Each pod takes two Pulse Carbine shots to destroy. Alternatively, you can simply sprint sideways through the barrage.

The third attack is a ground pound. The Keeper raises both arms and slams them into the arena floor, creating a shockwave that radiates outward. Jump over the shockwave or dodge through it with precise timing. The shockwave has two rings — a close-range high-damage ring with a narrow radius, and a wider low-damage ring. If you are standing at medium range, you can often avoid both rings by simply walking backward.

During Phase 1, the optimal strategy is to use the Photon Laser on the Keeper’s chest core, which is its weak point. Wait for it to finish an attack animation, then laser the core for two to three seconds before repositioning. With Eight providing tactical support, the weak point will be highlighted with a brief visual indicator — a pulsing glow — after each of the Keeper’s attacks. Targeting the core deals roughly double the damage of hitting any other part of the boss.

If you have Sticky Bombs, throw one at the chest core whenever the Keeper is recovering from its ground pound. The bomb sticks to the core and adds extra damage during the punish window. The stun effect from the Sticky Bomb detonation also delays the Keeper’s next attack slightly, giving you more time to reposition. This speeds up Phase 1 significantly.

Garden Keeper Phase 2

At 50% health, the Garden Keeper enters Phase 2. It gains new attacks, existing attacks become faster, and the arena environment changes. The most noticeable change is that the remaining stone pillars begin to crumble, removing your cover options. The boss also becomes more aggressive, stringing attacks together in rapid sequences.

The most dangerous new attack in Phase 2 is the Overgrowth Burst. The Keeper channels energy for about three seconds, during which a visible green energy field builds around its body. Then it releases a massive burst of plant growth that covers most of the arena floor. Any area affected by the growth deals continuous damage if you stand in it. The burst leaves safe zones — small clear patches — scattered around the arena. Immediately sprint to the nearest safe zone when you see the channeling animation begin. There are usually three to four safe zones, and they appear in consistent positions each time the attack is used.

The Keeper also gains a grab attack in Phase 2. It extends one arm rapidly to grab Hugh. The grab has a deceptively long range and tracks slightly. If caught, you need to mash the attack button to break free before the Keeper slams you into the ground. This attack deals heavy damage — often taking a third or more of your health bar. Your best defense is to maintain medium range and not get greedy with damage windows. If you are standing too close to the Keeper for too long, the grab is almost guaranteed.

In Phase 2, the Photon Laser remains your best weapon. Focus fire on the chest core whenever possible. The Overdrive Protocol ability you upgraded from the Training Data in Soil Research is extremely powerful here. Activate it during the Overgrowth Burst channeling animation — the burst will not damage you during Overdrive, and you can freely laser the core for the full channel duration. This single combo can shave 15-20% off the boss’s health bar if executed well.

The fight typically takes about four to six minutes with the Photon Laser and proper heat management. Do not panic if it feels long. Stay patient, learn the attack patterns, and punish conservatively. The Garden Keeper is a test of endurance more than reflexes. If you find yourself running low on health, back off and play defensively until you find a safe window to use a healing item. The Keeper’s attacks are all telegraphed, so there is always a dodge window available if you stay calm.

Garden Keeper Rewards

Defeating the Garden Keeper grants a substantial amount of Lunafilament and a unique Mod called the Botanical Shield, which provides damage reduction in nature-themed environments. Given that Terra Dome is the only sector with this theme, the Mod has limited use going forward. However, the Lunafilament reward is always welcome and can fund several upgrades at the Unit Printer.

A cutscene plays after the fight showing the Terrarium returning to its natural state. The corrupted plant growth recedes, and the space transforms into a serene garden. This is a satisfying visual reward after the intense boss encounter and provides a moment of calm before the story pushes forward.

All Terra Dome Collectibles and Safe Boxes

Collectible hunting in Terra Dome can be overwhelming because the sector is so large. We have organized every collectible by area so you can check off what you have found and locate anything you might have missed. This section serves as a reference guide you can come back to without re-reading the full walkthrough.

Note that some collectibles become inaccessible after you pass certain story triggers. If you want a complete collection, we recommend thoroughly exploring each area before moving to the next block. The game does not warn you when a story trigger is about to lock you out of an area, so err on the side of caution.

Terra Dome Entrance Collectibles

There are two Safe Boxes in the Entrance area. The first is in the left alcove before the first sealed door, containing basic Upgrade Components. The second is in the small room behind the Lim Regulator hub terminal, also containing Upgrade Components. The hub room also contains a Read Earth Memory about the Terra Dome’s construction.

Plant Factory Collectibles

The Plant Factory has two Safe Boxes. One is in the upper walkway area near the Gen Chip pedestal, containing a fire rate Mod for the Pulse Carbine. This Mod is highly recommended — the increased fire rate makes the Pulse Carbine significantly more effective against groups. The other Safe Box is in the storage room adjacent to the Lim Regulator chamber, containing Upgrade Components. There is also a Read Earth Memory in the storage room about the Cradle’s agricultural systems.

Eco Modeling Lab Collectibles

The Eco Modeling Lab has three Safe Boxes. The first is behind the cracked wall accessible with Sticky Bombs near the lab entrance, containing Pure Lunum. The second is in the research wing near the first Gen Chip puzzle. The third is in the vent passage that opens after rebooting the Lim Regulator, containing a Cabin Coin. There is also a Read Earth Memory in the vent passage about the lab’s original research projects.

Center Hall Collectibles

The Center Hall has one Safe Box on the west balcony containing a Weapon Slot upgrade, which is arguably the most valuable collectible in the entire sector. Carrying an extra weapon dramatically improves your combat flexibility for the rest of the game. There is also a Read Earth Memory on the east side that provides Eight’s backstory.

Soil Research Collectibles

Soil Research contains four Safe Boxes, the most of any area in Terra Dome. Two are in the data core — one with Upgrade Components and one with a Mini Cabin Figure. One is behind a cracked wall in the western research wing, accessible with Sticky Bombs. The last is on a raised platform in the eastern wing near the third signal jammer, reachable by climbing stacked crates. There are also two Read Earth Memories, one in each wing, covering the terraforming experiments and the Garden Keeper’s origin.

Total Terra Dome Collectibles Summary

Across all of Terra Dome, you can find 12 Safe Boxes, 6 Read Earth Memories, multiple Mods including a Pulse Carbine fire rate boost and the Botanical Shield, Pure Lunum, a Cabin Coin, a Mini Cabin Figure, a Weapon Slot upgrade, and Training Data for the Overdrive Protocol enhancement. If you have been following this walkthrough section by section, you should have all of them by the time you leave Soil Research.

If you missed any Safe Boxes, you can return to previous areas using the Escape Hatches scattered throughout Terra Dome. However, note that a few collectibles in the Eco Modeling Lab are locked behind the Lim Regulator reboot, so if you missed the vent passage Safe Box before leaving, you can go back and access it. The Garden Keeper does not respawn after you defeat it, so you can explore the Terrarium freely as well.

New Weapons and Enemy Strategies in Terra Dome

Terra Dome introduces three new weapons to your arsenal. Understanding how and when to use each one is key to getting through the sector efficiently. Here is a breakdown of each weapon along with strategies for every enemy type you will encounter.

Pulse Carbine

The Pulse Carbine is a rapid-fire energy weapon found in the Plant Factory. It excels at medium range and is effective against most standard enemy types. Use it for Lancer crowds and for shooting down the Garden Keeper’s seed barrage in the boss fight. Short bursts of three to five shots are more accurate and manage heat better than sustained fire. Once you find the fire rate Mod in the Plant Factory Safe Box, equip it immediately — the upgrade transforms the Pulse Carbine from decent to genuinely strong.

Sticky Bombs

Sticky Bombs are found in the Eco Modeling Lab. They adhere to surfaces and enemies, detonating after a brief delay of about two seconds. Their primary uses are destroying cracked walls to access hidden areas and stunning large enemies during combat. Against the Garden Keeper, sticking a bomb to the chest core during punish windows adds significant burst damage. The area damage effect also makes them handy for clearing groups of Lancers when you are feeling overwhelmed.

Photon Laser

The Photon Laser is acquired in Soil Research and is the star weapon of Terra Dome. It fires a continuous beam that melts armored targets. Proper use of this weapon makes the Garden Keeper boss fight much more manageable and turns Crushers from threats into target practice. Remember to manage heat — fire in two to three second bursts with brief pauses to avoid the overheat penalty. An overheated Photon Laser is dead weight for several seconds, which is an eternity in a boss fight.

Enemy Type Breakdown

Terra Dome features four main enemy types. Understanding each one’s behavior and weakness will save you time and health throughout the sector.

Lancers are basic melee enemies that charge at you with energy lances. They are weak individually but dangerous in groups because their attacks can stagger-lock you if multiple Lancers hit in quick succession. Use the Pulse Carbine or standard attacks. Dodge their thrust attack sideways and counter during recovery. In groups, kite them into a line so you only face one at a time.

Crushers are heavy armored enemies with powerful charge attacks. Their front armor deflects most damage, so frontal assault is a waste of time and health. Dodge their charge, then attack their exposed back. The Photon Laser is particularly effective against them once their guard is down. Three to four punish windows with the Photon Laser will end a Crusher fight quickly.

Creepers are stealth enemies that turn invisible and ambush from behind. Listen for the electronic distortion audio cue and use Object Scan to reveal them. Once visible, they go down quickly to any weapon. Always check for Creepers near puzzle terminals before interacting with them. This is the single most important habit for surviving the Eco Modeling Lab and Soil Research.

Impeder enemies appear in Soil Research and the Terrarium. They create energy barriers that block projectiles and protect other enemies from ranged attacks. Destroy Impeders first in any encounter to remove their shielding effect on nearby foes. A single Sticky Bomb will destroy an Impeder, or you can use Critical Shots on their glowing core. Impeders are not dangerous on their own, but their shields make other enemies significantly harder to deal with. Prioritize them.

Tips for Completing Terra Dome

Terra Dome is a long sector, and managing your resources efficiently makes a big difference in how smoothly the experience goes. These tips come from our own playtime combined with strategies shared by the Pragmata community.

Upgrade Priorities

Before entering Terra Dome, prioritize upgrading your Object Scan ability. An upgraded scan reveals more collectibles at greater distance and highlights cloaked Creepers more clearly. If you have spare Lunafilament, also upgrade your dodge invincibility frames — the Crusher and Creeper encounters are much more forgiving with an extended dodge window. The Overdrive Protocol upgrade from the Training Data in Soil Research should be applied before the Garden Keeper fight, as the enhanced duration and damage are specifically tuned for that boss.

Missable Items Warning

Several items in Terra Dome can be permanently missed if you progress too far without backtracking. The most notable are the Eco Modeling Lab vent passage Safe Box (only accessible after Lim Regulator reboot) and the Soil Research western wing cracked wall Safe Box (requires Sticky Bombs). Always check the current block thoroughly before moving to the next one. If you see a cracked wall, destroy it immediately. If you see an overgrowth-blocked passage, make a mental note to return after rebooting the Lim Regulators.

Recommended Weapon Loadout

Once you have all three Terra Dome weapons, we recommend the following loadout: standard weapon in your primary slot for close-range combat, Photon Laser in your second slot for armored enemies and bosses, and Sticky Bombs equipped for utility. Swap the Pulse Carbine in when facing groups of Lancers or during the Garden Keeper seed barrage phase. The Weapon Slot upgrade from the Center Hall lets you carry three weapons, which means you can have all three Terra Dome weapons accessible without cycling through menus mid-fight.

Escape Hatch Usage

Escape Hatches connect Terra Dome back to your Shelter. Use them when you need to restock on healing items or upgrade gear. There are three Escape Hatches in Terra Dome: one near the Lim Regulator hub, one in the Center Hall, and one at the Soil Research data core entrance. Do not hesitate to use them — the enemies respawn when you return, but your progress on puzzles and collectibles is saved permanently. The Shelter also has a Unit Printer and vendors where you can spend accumulated Lunafilament.

Combat General Tips

A few combat habits that will serve you well throughout Terra Dome. First, always clear enemies before attempting puzzle interactions. The hacking animation locks you in place, and taking damage during it wastes health and resets your puzzle progress. Second, keep moving during combat encounters that include Creepers — standing still makes you an easy target for backstab ambushes. Third, use Sticky Bombs on Crushers whenever possible. The stun effect essentially gives you free damage windows, and the bombs are on a cooldown rather than limited ammo, so there is no reason to hoard them.

FAQ

Wrapping Up Sector 3 Terra Dome

Completing this Pragmata walkthrough for Sector 3 Terra Dome means you have conquered the longest sector in the game. From the initial entrance through the Plant Factory and Eco Modeling Lab Lim Regulators, to the emotional moment of freeing Eight, through the puzzle-heavy Soil Research area, and finally the Garden Keeper boss fight — every section tested different skills and introduced new mechanics.

The rewards are worth the effort. You leave Terra Dome with three new weapons that expand your combat options significantly, a Weapon Slot upgrade that lets you carry more tools into battle, a party member in Eight who provides ongoing tactical support, and a mountain of lore about the Cradle facility and IDUS’s role in its corruption. The Photon Laser alone changes how you approach combat for the rest of the game.

If you missed any collectibles, you can always return to Terra Dome through the Shelter’s fast travel system. The Garden Keeper does not respawn, so you can explore the Terrarium freely after defeating it. Check the vent passage in the Eco Modeling Lab and the cracked walls in Soil Research — those are the two most commonly missed areas according to player reports on community forums.

The story now shifts toward confronting IDUS directly. Eight’s knowledge of the Cradle systems will be essential in the sectors ahead, providing both narrative context and practical combat assistance. Make sure your gear is upgraded, your mods are slotted, and your weapon loadout feels comfortable before moving on. Sector 4 awaits, and based on what Eight reveals about IDUS during the cutscenes, the challenges are only going to escalate from here.

Good luck with the rest of Pragmata. This Terra Dome walkthrough should have you fully prepared for whatever comes next in your journey through the Cradle facility.