Sushiamo roguelike deck-builder launches with Proton and Steam Deck support

Panellino Games' Sushiamo, a sushi-themed roguelike deck-builder inspired by Balatro, is set for full release on Steam on November 4, 2026. The game replaces traditional cards with sushi ingredients, tasking players with assembling high-scoring rolls using 24 food types, 80 tools, and 40 sauces across procedurally generated runs with 24 special bosses and 17 surprise events. A free demo is currently available and has been confirmed to run on Linux and Steam Deck through Valve's Proton compatibility layer, using the Windows build rather than a native Linux port.

The demo's Proton compatibility means Linux gamers can access the title immediately without waiting for a native port, though the game has not yet received official Steam Deck Verified status. The full release will include five difficulty levels, unlockable notebooks and pantries, and a shop system for acquiring new ingredients and upgrades during runs.

Proton compatibility and Steam Deck support

• Proton runtime: The Windows build of Sushiamo runs on Linux through Valve's Proton compatibility layer, with no native Linux port currently planned or available.
• Steam Deck support: The demo is reported as fully functional on Steam Deck hardware, though it lacks official Steam Deck Verified certification from Valve at this time.
• Game engine: The title is built using the Godot engine, as indicated by tags on the source article, which typically offers good cross-platform export capabilities.
• Anti-cheat considerations: No kernel-level or invasive anti-cheat systems are mentioned, suggesting the Proton compatibility path faces no additional compatibility barriers beyond standard Windows API translation.

Why it matters

Proton-first Linux support continues to lower the barrier for indie developers to reach Linux and Steam Deck audiences without maintaining separate native builds, reinforcing Valve's compatibility layer as the dominant path for Linux gaming. For the Godot engine ecosystem, this adds another data point demonstrating viable commercial release on Linux through Proton, though it also highlights the persistent gap between Proton-compatible and native Linux titles in the indie space.