Subnautica 2 Colonist Bunker Biome Guide

A former human settlement zone. Moderate threat level. Good Silver deposits. Two predators to watch: Nibbler Shark is fast, Waxmoon is harder to spot.

Danger levelModerate ★★☆☆
Depth range20–80m
Fauna recorded8 species
Resources5 types
Last updatedMay 15, 2026
Quick answer: A former human settlement zone. Moderate threat level. Good Silver deposits. Two predators to watch: Nibbler Shark is fast, Waxmoon is harder to spot.

What you will find in Colonist Bunker

Every dive into Colonist Bunker should have a clear objective. The zone has 8 documented fauna species and 5 harvestable resource types. Plan your inventory before entry: bring enough oxygen for the target depth (20–80m), enough bag space to make the trip worthwhile, and a Beacon to mark your entry point.

Key resources

The following resources are available in Colonist Bunker. Prioritise based on your current crafting goals before you dive.

  • Titanium
  • Copper
  • Silver
  • Quartz

Passive fauna

These species are not aggressive targets under normal conditions. Some may still react if cornered or disturbed.

  • Foureye
  • Halfmoon
  • Geordie
  • Fish School Flutter Tail
  • Fish School Mirrorhalfmoon

Threats in Colonist Bunker

There are 2 predator types recorded in Colonist Bunker. Know each one before you dive. A single surprise encounter at depth with low oxygen is fatal.

  • Nibbler Shark — 100 HP — targets: Player, Carnivore, Halfmoon
  • Waxmoon — 0 HP — targets: Player

When to visit Colonist Bunker

Recommended timing: Early mid-game — after building a Fabricator and basic dive gear.

Check your gear before entering this zone:

  • Oxygen: enough for the full depth range (20–80m), plus a return buffer
  • Inventory: cleared to hold collected resources
  • Beacon: placed at your entry point
  • Return trigger: agreed before you dive (e.g. "turn around at 40% oxygen")
Early Access note: Spawn positions, resource counts, and creature behaviour are active targets for adjustment in the May 2026 build. This page will be updated as the community verifies data.

How to plan a Colonist Bunker route

Colonist Bunker should be treated as a route choice, not just a named zone. Before you enter, decide whether you are going there for resources, fragments, scouting, a base decision, or a creature scan. Each goal changes what you should bring and how long you should stay.

The current page lists this biome with danger level Moderate ★★☆☆, depth information of varied depth, and visit timing around after preparation. Use those notes to decide whether this is a first-contact scouting run or a proper farming route. If the biome is new to you, do not try to collect everything on the first visit.

Resource run strategy

If your target is materials, enter Colonist Bunker with empty storage and a strict shopping list. The biggest mistake players make in a resource biome is collecting random items until the inventory is full, then realizing they did not bring home the material needed for the next tool, base module, or vehicle step.

Use this biome as part of a loop: leave from a known safe point, gather only the highest-priority materials, return before the route becomes stressful, and craft immediately after you arrive home. If 5 types are listed as important here, connect those materials to actual recipes before farming large quantities.

  • First run: scout landmarks, oxygen pressure, and threat positions.
  • Second run: gather a focused set of materials.
  • Third run: return only if the biome supports a clear upgrade, fragment, or base goal.

Threat routing

A biome’s danger is not only about the creatures inside it. Terrain, visibility, vertical movement, and distance from safety can be just as important. If the page lists threats such as local threats, plan the route so you can leave without passing directly through the worst part of the habitat.

Do not let a single resource node, fragment, or glowing landmark pull you deeper than your equipment supports. Subnautica 2 works best when you learn a dangerous biome in layers. Approach the edge, memorize exits, return to base, then come back with the right tool, vehicle, or co-op plan.

Base and return planning

Not every biome is a good base location. A useful base needs more than a beautiful view: it needs safe entry routes, reasonable resource access, enough room to expand, and a return path that stays readable when visibility drops or a predator pushes you off course.

If you are considering building near Colonist Bunker, first test the route several times without carrying critical materials. Watch how often you get disoriented, whether threats patrol near likely entrances, and whether the zone supports the kind of crafting or exploration you plan to do next. A temporary outpost can be better than committing to a main base too early.

Co-op route plan

Co-op crews should split jobs before entering Colonist Bunker. One player scouts, one gathers materials, one watches threats and return direction, and one manages storage or vehicle safety. This prevents the group from wasting time on duplicate tasks and keeps the team from losing orientation when a creature appears.

If the biome feels too dangerous, leave together. A common co-op mistake is letting one player push ahead while the others are still looting or scanning. Treat the return call as a team decision, not a personal preference. A full-crew retreat with useful information is better than a messy rescue attempt.

Early Access note

Biomes can change during Early Access. Resource density, fragment placement, creature behavior, and route safety may be adjusted after updates. If your current save does not match this page, check the patch notes and treat the information as a starting point rather than an unchangeable map.

The safest way to use this guide is to combine it with observation. If the biome feels more dangerous than described, pull back and re-plan. If the rewards feel different, update your route goal. The best Subnautica 2 players adapt to the current build instead of forcing an old plan into a changed ocean.

Colonist Bunker Biome Guide practical checklist

Before turning Colonist Bunker Biome Guide into a farming route, treat your first visit as reconnaissance. Your first goal is to understand the entry point, the safest return path, the most useful landmarks, and the moments when the area starts to feel unsafe. Do not judge a biome only by the first resource you see; judge it by whether you can enter, gather, and leave repeatedly without panic.

A strong biome route has three parts: a safe approach, a focused task, and a clean exit. The task might be gathering materials, looking for fragments, scanning creatures, checking base potential, or simply mapping the edge of the area. If you combine all of those goals into one dive, you are more likely to stay too long and lose track of what you came for.

Watch how the terrain changes your decisions. Open water, caves, ruins, vertical cliffs, vegetation, low visibility, and predator patrols all affect how safe a route feels. A resource that looks easy on the way in can become risky if a threat pushes you away from your return path. Use landmarks and turn-around points before you start filling your inventory.

For co-op crews, assign jobs before entering Colonist Bunker Biome Guide. One player should lead the route, one should gather, one should scan, and one should watch danger and oxygen timing. Rotate those jobs between trips so every player learns the biome instead of relying on one navigator. This makes later expeditions faster and safer.

After each trip, update your plan. If the biome gave you the material or scan you needed, move to the related guide and turn that progress into crafting or exploration. If the trip felt too dangerous, return later with a vehicle, better gear, or a clearer route. Subnautica 2 is about learning the ocean in layers, not forcing every zone immediately.

  • Use the first visit to scout, not to finish everything.
  • Pick one main goal before leaving base.
  • Memorize a return landmark before gathering.
  • Leave early if threats or terrain break your route.
  • Check patch notes if resources or threats feel different.

Frequently Asked Questions

Is Colonist Bunker safe for beginners?

Colonist Bunker has a danger rating of Moderate. It is not recommended for first sessions. Build survival gear first, then explore with a clear return route planned.

What is the most valuable resource in Colonist Bunker?

The highest-priority resources in Colonist Bunker are Titanium, Copper, Silver. Titanium is available in large quantities.

What predators are in Colonist Bunker?

Recorded predators: Nibbler Shark, Waxmoon. Check the threat section above for each predator's HP and behaviour.

What depth is Colonist Bunker?

Colonist Bunker spans approximately 20–80m. Plan oxygen capacity for the deeper areas and set a return trigger before diving below 20 metres.