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Hull Rupture enemies
Aliens arrive in waves. Drop pods land on the upper and lower hull, then the aliens walk to the airlock. The preview shows when they arrive and where they breach.
I looked for an official bestiary and did not find one. Names such as Swarm, Brute, or Elite from other sites do not have a second source, so they are not rows.
4 rows shown. Every row below has at least one public source.
Source counts use the reviewed number of independent original accounts; links that repeat the same studio announcement or platform record do not add a source. Steam's store, news, community and APIs count as one publisher. Dated change notes describe historical evidence; they do not establish current numerical values.
| Version evidence | Status | Sources and checked date | ||||
|---|---|---|---|---|---|---|
| Alien waves | Alien boarding waves | Drop pods land across upper and lower hull, then approach the Airlock | Landing preview before the wave | Demo / pre-release public descriptions; release balance may differ | 1 source ⓘ | [1] Steam (2026-11-07); [2] Steam (2026-11-07) |
| Boss | Boss | Lands at the far-left upper hull, furthest from the Airlock | Boss wave | Demo / pre-release public descriptions; release balance may differ | 1 source ⓘ | [1] Steam (2026-11-07) |
| Large skeleton | Player-described enemy | One review describes a large, fast skeleton | — | Demo / pre-release public descriptions; release balance may differ | 1 source ⓘ | [1] Steam (2026-11-07) |
| Rat (converted) | Converted target | A Rat turret hit changes the target into a rat | Rat turret hit | Demo v0.10.12 introduction; release behavior not separately documented | 1 source ⓘ | [1] Steam (2026-11-07) |
Behavior that is actually written
The boss drop is fixed at the top-left, farthest from the airlock. Devlog 4 says to give that path length so more than one boss does not stack on the door. The 14 Sep note says the final boss needs a lot of good guns.
The Rat turret changes a target into a rat. That is a status on an existing alien, not a species entry.
One Steam review mentions a large skeleton that walks fast. That is a single review, so the table can hold the behavior note without turning the phrase into an official name.
If a later patch publishes names, this page should grow rows. Until then the honest table is short.
FAQ
How many enemy types are there?
Unknown. No official count was published.
Do guarded waves add bosses?
Those waves are extra and do not count toward the Classic 20. The posts do not list their roster.
Where do I plan the path?
On the defense guide, which uses the same top-left boss rule.
Sources
Checked 2026-11-07.