What to expect on Steam Deck
You can play on Steam Deck, but these measurements come from a September 18, 2025 test of the initial Early Access release, whose performance could change during development.
The Deck build started with a 25 FPS lock. On a much larger turn-144 save, it ran at about 20 FPS while zoomed in and 16–18 FPS while zoomed out.
Before committing to a campaign, confirm that the current build still provides the listed Full controller support and Steam Cloud features.
The tested build supported the Deck's 16:10 resolution, cloud saves, and controller input, but it did not provide HDR settings.
Deck build or lower PC settings
| Option or check | Published result and tradeoff |
|---|---|
| Use the Steam Deck-specific build with its gamepad interface. | Video options were locked, and the large turn-144 save dropped below the initial 25 FPS lock. |
| Launch the non-Deck build and select its lowest quality settings. | The same turn-144 save reached about 30 FPS while zoomed out, but the tested gamepad support was unavailable and required keyboard-and-mouse input. |
| Keep the Deck build when comfort and controller input matter most. | The tester preferred its gamepad controls, visuals, readable text, and interface tuned to the Deck screen despite its lower performance. |
| Start with the published 30 FPS profile and No Forced Compatibility. | The published profile recorded 30 FPS, used No Forced Compatibility, and reported No Options Available; test it against a representative large save. |