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Subnautica 2 Map
Safe · Open water

Halfmoon

Common edible fish with a crescent body profile.

Halfmoon render

About Halfmoon

SafeOpen water

Halfmoons are mid-tier edible fish, slightly larger than Foureye and a step better as food. They favour open water at moderate depth and form loose schools that ignore the player until physically obstructed. Their main role is mid-game protein — three or four cooked Halfmoons cover a long dive, and they keep well in a freezer. Easy to scan without aggression and the schools mark stable patches of biome that have not been disturbed by a larger predator recently. If they vanish from a familiar tile, treat that as a soft warning before swimming further.

How to handle an encounter

  • · Approach freely for scans and harvest.
  • · Use the species as a soft biome cue — sudden absence usually signals trouble.
  • · Cooked or salted variants stack well for long dives.

Sources

  • External research snapshotThird-party research
    retrieved 2026-05-16