Is The Sinking City 2 on Steam Deck? Compatibility Status

The checked Steam listing displayed Steam Deck Compatibility: Unknown on August 18, 2026. That is the accurate current answer for this guide snapshot; it is not a claim that the game can never run on Steam Deck.

What “Unknown” means here

Steam's compatibility field had not supplied a verified rating in the captured listing. The Windows minimum and recommended specifications are not a Steam Deck test, and they cannot be converted into a reliable frame-rate prediction.

Do not promise:

• a stable 30fps target;
• a specific Proton version;
• a verified control layout;
• battery life or shader-cache behavior.

Those details require a dated hands-on test or a current Valve / Frogwares compatibility update. Until that evidence exists, the responsible recommendation is to check the live Steam page and use the store's current compatibility information before buying specifically for a Deck.

For Windows hardware, see system requirements. For controls and languages, see accessibility and language support.