The Feedback Resonator upgrade is for Angel Comb and Bloom Canker-style progression routes. Expect Conduit Crystal, Enameled Glass, and other advanced materials before you can build it.
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Items & Recipes
Open an item to see why it matters, what material usually blocks it, and which route or recipe to check next.
To make Titanium Ingot in Subnautica 2, gather enough Titanium first, then craft the ingot at the correct fabricator. Check the target recipe before converting your whole Titanium stock.
Check recipeEnameled Glass sits in the advanced crafting chain. If a Feedback Resonator recipe is blocking you, check Creature Enamel and glass ingredients before leaving base.
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Materials, Tools, And Tech Questions
Use these direct guides for processed materials, tool blockers, PC requirements, and engine or mod-adjacent questions.
Strong Acid is made from Necrolei Cyst. If you are blocked by Strong Acid, solve the Necrolei Cyst route first, then process it at base.
Make Titanium Ingot only when a recipe asks for it. Gather enough Titanium first, then craft the ingot at the correct fabricator instead of converting your whole stock early.
Creature Enamel is an advanced material tied to risky later routes, while Enameled Glass is the crafted material that can block upgrades such as Feedback Resonator chains.
The Feedback Resonator is a progression tool tied to Angel Comb and advanced material chains. Check Conduit Crystal, Enameled Glass, and Creature Enamel routes before committing rare resources.
Subnautica 2 uses Unreal Engine 5. For players, the practical meaning is higher PC requirements, modern rendering expectations, and different mod assumptions than older Subnautica builds.
Fibrous Pulp is best treated as a plant-resource crafting bottleneck: identify the source plant first, then gather enough for the whole recipe chain before leaving the route.
Axum Bacterial Culture should be approached as a biology or specimen-route material. Verify the current build source before planning a long farming trip.
The Repair Tool is a survival-priority tool: scan or unlock the required fragments early, then carry it before longer vehicle or base-building routes.
Craft the Rebreather when depth and oxygen efficiency start limiting your route. It is a progression comfort item that can turn stressful dives into repeatable resource runs.
Use the Bioscanner as a discovery and unlock tool: scan unfamiliar plants, creatures, and biological objects before assuming a route has no useful materials.
Craft the Vehicle Fabricator when your next routes are too long or too deep for swimming. It is a progression pivot, so check the full material chain before spending rare resources.
Depth Modules are progression gates. Before crafting MK2-style upgrades, check the next route, rare material needs, and whether your vehicle can survive the return trip.
The Tadpole Depth Module is a vehicle progression upgrade. Craft it when a route is blocked by safe operating depth, and check the material chain before spending rare stock.
The Sonic Resonator Upgrade is tied to progression structures such as Angel Comb. Solve the tool route first, then return with oxygen and a clear objective.
Hammrhead is a search term that should be verified in the current build before treating it as a confirmed creature, item, or cut-content feature.
Kraken searches are myth and creature-rumor intent. Verify official creature names and current in-game scans before assuming a Kraken exists in Subnautica 2.
Tadpole searches can refer to vehicle progression, Tadpole Pens, or husbandry-style speculation. Use the current objective and vehicle context to avoid following the wrong guide.
Do not plan Subnautica 2 like a weapon-forward survival shooter. Prioritize avoidance, tools, route planning, vehicles, and escape options unless a current build confirms specific defense items.
Missing-content searches should be compared against Early Access scope and the official roadmap. Not every absent feature is cut; some may be planned, delayed, changed, or never confirmed.
Do not assume DLC until it is officially announced. During Early Access, roadmap updates and core content expansion matter more than traditional DLC speculation.
Red Plague Act 2 is a mod-related Subnautica search, not core Subnautica 2 progression. Use mod-specific sources and keep it separate from Subnautica 2 guide routes.
Do not assume Nitrox works with Subnautica 2. Subnautica 2 has native online co-op and a different technical context, so mod compatibility needs current verification.
Subnautica VR on Quest 2 searches usually refer to PC VR or streaming. Do not assume a standalone Quest 2 version without an official store listing.