Yes, you can crow at a handheld in public. KOOO TO JUMP runs on Steam Deck today — through both Valve's Proton layer and a dedicated native Linux build. Valve hasn't put it through their official Steam Deck review yet, so it still shows as Unknown — but in our own hands-on testing it plays great. Here's exactly what to expect before you start losing your dignity on the bus.
How it plays on Deck
KOOO TO JUMP has two control schemes, and both work on the Deck:
Voice + gamepad (the real way). Steer with the Deck's stick and buttons while you charge your jump by sustaining a continuous "KOOOOO" into the Deck's built-in microphone. No headset, no extra hardware — the Deck's mic picks up your rooster impression out of the box. The longer you hold the note, the higher you launch.
Full gamepad (the dignified way). Prefer silence on public transport? A pure controller mode maps both direction and jump to the Deck's inputs — same brutal precision, zero barnyard noise.
Compatibility status
Official rating: not yet reviewed. Valve hasn't run KOOO TO JUMP through their Steam Deck review, so it shows as Unknown for now. In our own hands-on testing, it runs and plays on Deck right now.
Two paths to your Deck. Ships as a Windows build that runs through Proton, plus a native Linux build cross-compiled for the Deck.
Built for the small screen. UI is scaled and safe-framed for the Deck's 1280×800 display.
Cutscenes included. Intro and win-screen videos use the Bink codec, so they play correctly under Proton and Linux — no silent black screens.
What we're still polishing
We're aiming for an official Steam Deck Verified rating across the playtest and launch cycle — chasing input-mapping, UI-scaling, and audio edge cases. Once Valve reviews the game, we'll update this post. If you play on a Deck and hit something that doesn't happen on desktop Windows, tell us: the Steam forum and our Discord server are both watched, and Deck-specific reports jump the queue.
Now go embarrass yourself at 800p. 🐔
— Tzavis Studio