Start Here
Subnautica 2 Walkthrough
A hub for spoiler-free and full progression routes through Subnautica 2 Early Access, with checkpoints for stuck players.
Based on the current Subnautica 2 Early Access build. Routes, recipes, and balance may change in future updates.
Quick info
- Version
- Early Access, last reviewed May 18, 2026
- Route style
- Checkpoint-based and spoiler-light
- Spoiler options
- Spoiler-free and full route sections
- Use when
- You have no active objective or upgrade target
- Core unlocks
- Scanner, Habitat Builder, full Fabricator, Sonic Resonator, Tadpole
Spoiler-free progression order
Use this page as a checklist of systems to unlock rather than a story transcript. Progression usually means finding the next scan, crafting the next tool, or reaching a safer route range.
- Stabilize food, water, and oxygen.
- Craft the Scanner as soon as the recipe allows.
- Scan Habitat Builder parts near the Welcome Center route.
- Build a powered starter base and place a fully functional Fabricator.
- Collect silver, lead, and salt for oxygen, Sonic Resonator, and Tadpole progress.
- Return to black box or NOA-style objectives after each major tool unlock.
First practical unlock order
This order keeps the player moving without sending them into gold or heat routes too early.
- Scanner: opens blueprint progress from fragments.
- Standard Air Tank: silver route solves early oxygen pressure.
- Habitat Builder: unlocks base power, storage, and a full Fabricator.
- Sonic Resonator: lead and wiring kit path unlocks large resource deposits.
- Tadpole: requires scans, vehicle infrastructure, and Power Cell materials.
Checkpoint route
Follow these checkpoints if your only question is what to do next.
- Checkpoint 1: Scanner crafted and first nearby fragments scanned.
- Checkpoint 2: silver gathered and oxygen upgrade path started.
- Checkpoint 3: Habitat Builder scanned at the Welcome Center and crafted.
- Checkpoint 4: starter base powered, storage placed, full Fabricator available.
- Checkpoint 5: lead gathered from the northeast ravine and Sonic Resonator crafted.
- Checkpoint 6: Repair Tool and Rebreather path checked through wreck access.
- Checkpoint 7: Tadpole scans and vehicle infrastructure gathered after base crafting is stable.
Stuck checklist
If progression stops, check recipes, pinned ingredients, scan targets, and active objectives before assuming the game is bugged.
- Look for unscanned fragments near wreckage, caves, or biome borders.
- Check whether a new fabricator, module, or base piece unlocked a hidden dependency.
- Revisit earlier areas with better oxygen and mobility.
- For Early Access bugs, save, restart, and check current patch notes before rebuilding a save.
Walkthrough FAQ
Will the walkthrough change during Early Access?
Yes. Unknown Worlds has said updates can expand systems, biomes, resources, tools, vehicles, and story content, so route details may change after major updates.
Can I use this without story spoilers?
Yes. Start with the spoiler-free checklist and only open full route sections when you want exact objective order.