What Valve actually says, per device
Read from Valve's own hardware-compatibility endpoint on 2026-08-06, not from a badge screenshot. Valve rates four devices separately and this game currently gets three different answers.
| Device | Valve’s rating | Test results behind it |
|---|---|---|
| Steam Deck | Unsupported |
|
| SteamOS | Playable |
|
| Steam Machine | Verified |
|
| Steam Frame | Not rated | Valve has not rated this device. Not the same as rating it badly. |
Read 2026-08-06. Category numbers are undocumented and re-derived on every sync against Portal 2, The Witcher 3, Red Dead Redemption 2, Destiny 2 and PUBG. The wording beside each token is ours, expanded from Valve’s own localisation key — the key is printed so you can match it against Valve’s UI.
Why "Unsupported" and not "not yet Verified"
Those are different verdicts and the distinction is the point of this page. Valve's scale has four rungs — Unknown, Unsupported, Playable, Verified — and a game that merely failed review sits at Playable or Unknown. This one is at the bottom rung, on one stated reason: graphics performance. Every guide site answering this question is quoting the developer's forum reply, which says "not yet", and that reply is accurate about the Verified badge while being softer than the category Valve assigned.
How we know what the numbers mean
Valve publishes the category as an integer and documents nothing. So the sync script behind this page re-derives the mapping on every run rather than repeating folklore: it queries five titles whose public badge is not in dispute — Portal 2 and The Witcher 3 for Verified, Red Dead Redemption 2 for Playable, Destiny 2 and PUBG for Unsupported — and refuses to write a snapshot if they ever stop agreeing. That yields 1 = Unsupported, 2 = Playable, 3 = Verified. The developer's own reply then confirms it from the other direction: they wrote that the game is "Compatible with SteamOS" and "Rated as Verified for Steam Machine", and those are exactly the two categories the endpoint returns as 2 and 3.
And what someone who measured it found
Steam Deck HQ published the only measured Deck numbers anyone has: roughly 30fps on the default Low preset with FSR1 set to Performance, 18–23W of draw, about two and a half hours of battery, 75–80°C, scored 3/5. Their verdict was "not going to be a perfect experience, but it will be a playable one". That is a genuine disagreement with Valve rather than an error by either — Valve is rating the out-of-the-box experience against a fixed bar, and a specialist is reporting what the hardware does once you turn the settings down. Both are true and they answer different questions.
The first patch appears to target the Deck review, though nobody has said so
The developer named three things the Deck review flagged: text size and contrast, default performance, and Deck-specific UI and input. Two of those are items one and four of the five announced for the first patch — increased text size, and the default graphics setting changed from Cinematic to Performance. Nobody has connected those publicly and no statement links them, so this is our inference and it is graded as one. If it is right, the rating is a candidate to move after the patch rather than a settled fact about the game.
One unresolved report worth knowing about
Separately from the rating, our own issues tracker carries an unresolved report of a black screen instead of the game on Steam Deck and on desktop Linux, with no developer reply and no working fix posted. Whether the Deck and desktop cases are the same fault has not been established by anyone. It does not contradict the 30fps measurement — the two could easily be different machines in different states — but a page that quotes a playable framerate without mentioning that some people get no picture at all would be selling you something.