Hull Rupture ships

The store says three ships, with different layouts, systems, and loss thresholds. The names players see are in the achievement text, not in a separate ship manual.

Izumo is a demo-era name. No studio page says which release ship it became. I am not writing Izumo equals Hephaestus.

3 rows shown. Every row below has at least one public source.

Filter Version evidence

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
Hephaestus	Starting ship	Available at the start	Yes	Release record · 7 Nov 2026	1 source ⓘ	[1] Steam (2026-11-07); [2] Steam (2026-11-07)
Hermes	Unlockable ship	Reach ship speed 500	No	Release record · 7 Nov 2026	1 source ⓘ	[1] Steam (2026-11-07); [2] Steam (2026-11-07)
Proteus	Unlockable ship	Add 15 ship sections in one run	No	Release record · 7 Nov 2026	1 source ⓘ	[1] Steam (2026-11-07); [2] Steam (2026-11-07)

Unlocks

Space Hacker asks for a Hermes win above Easy (0.5%); Blame! asks for a Proteus win above Easy (0.8%). Rates checked 7 Nov 2026.

Speed 500 is an achievement condition, not a guarantee that every engine layout hits it. The economy page covers why extra modules slow the ship.

Ship	Unlock	Sample achievement	Rate
Hephaestus	Available at the start of Classic	Conveyor, clear Classic	26.2%
Hermes	Reach speed 500	License To Speed	9.1%
Proteus	Add 15 segments in one run	Arcology	5.4%

FAQ

Which ship should a new player use?

Hephaestus. It is the Classic default.

Is Izumo still in the game?

The name is not in the release achievement text. The mapping was never published.

Do ships change the loss rule?

The store says loss thresholds differ. The exact numbers are not listed.

Sources

Checked 2026-11-07.