Steam Deck Verified · Action · 2016

Does Sullen work on Steam Deck?

Yes. Valve has tested it and rates it Steam Deck Verified.

Status checked 9 November 2026 · Chris Charbonneau

Verified

Short answer: yes. Sullen is Steam Deck Verified. Valve has tested it and it works great on Steam Deck straight out of the box.

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Valve's Steam Deck test results

All functionality is accessible with the default controller configuration
In-game text is legible on the Steam Deck screen
Default graphics settings perform well on Steam Deck
Does not default to external controllers; you may need to switch the active controller in the Quick Access menu

Steam Deck status checked 9 November 2026.