Helldivers 2 Adds Poisonous Cave Biome
Arrowhead Game Studios has added an underground cave biome and two poisonous Terminid enemies to the online shooter Helldivers 2.
Updated on Nov. 3, 2026 in Environmental

Arrowhead Game Studios added a new cave biome to Helldivers 2 that takes players underground into a cave system containing a poisonous type of Terminid enemy. The update also introduces the Noxious Scavenger and Noxious Spewer.
Why it matters
The addition expands the game's map and enemy roster, giving players new close-quarter combat challenges underground. It also suggests Terminid cave networks may spawn across more biomes on the Galactic map.
The update adds a new cave biome and two poisonous enemy types, the Noxious Spewer and Noxious Scavenger, to Helldivers 2. Details on spawn frequency and balance changes were not provided in the announcement.
The players
Arrowhead Game Studios
Arrowhead Game Studios is the Swedish developer behind the cooperative shooter Helldivers 2.
The details
The new biome takes players into Terminid cave systems that stretch beneath the surface of Helldivers 2 planets, with tunnels built for close-quarter combat and reduced visibility. The Noxious Spewer is a fast, spider-like creature that uses Web Spit to slow and poison players and a Web Explosion to inflict heavy damage, while the smaller, faster Noxious Scavenger delivers rapid poisonous bites.
Timeline
- November 3, 2026: Arrowhead Game Studios announces the new cave biome and enemies.
- Helldivers 2 is a few months away from its third anniversary.
Seasonal Patterns
Hmm
Players can access the new cave biome and enemies as part of the existing Helldivers 2 game. The update does not change pricing or require any additional purchase.
The takeaway
The update expands the Terminid faction into underground terrain, so players preparing for cave encounters should expect tight corridors, reduced visibility, and poison-based attacks from both new enemy types.
Further reading
Explore more on the Environmental section for broader context on subterranean ecosystems.







