How to clear the Alien Ruins Angel Comb (Axum Vision)
Answer first
Reach the Alien Ruins with Feedback Resonator and Tadpole Depth Module. Clear the three bloom chambers along the purple tubes, then the main Angel Comb to unlock Axum Vision. If a cleared comb is closed, update to Hotfix 4+, reload, and retry.
The chamber order is a route to test; landmarks may not line up exactly in your build.
Field notes
| Materials | Supplies for deep run |
|---|---|
| Tools | Feedback Resonator, Tadpole Depth Module |
| Depth / zone | Alien Ruins / Karakorum |
Steps
- Arrive at Alien Ruins with Tadpole Depth Module and Feedback Resonator. If a previously cleared comb appears closed, update to Hotfix 4 or later and reload before replaying the route.
- Clear chamber 1 under the Alien Ruins Research Base plateau.
- Clear chamber 2: ESE from Research Base, follow purple tube toward Angel Comb, take the right split into a small ravine.
- Clear chamber 3: NE along the tube past the comb toward green pools; right-hand purple tube into cliff → crashed ship (blast Bloom Biofilm) → cave bloom below. Use oxygen tunic plants.
- Return to main Angel Comb, clear remaining blooms, claim Axum Vision.

Version differences and limitations
- The chamber-by-chamber route has only one detailed walkthrough. Treat the directions below as a route to test in your build.
Sources
- PC Gamer — Second Angel Comb / Axum Vision
- PC Gamer — Feedback Resonator prerequisite context
- Unknown Worlds — Subnautica 2 Buddy System Update — Official update documents Feedback's interaction with creatures as stun instead of flee; verify current behavior in your build.
- Unknown Worlds — Subnautica 2 Early Access Hotfix 4 — July 14, 2026: fixed some Angel Combs not opening and blocking progression.