Call of Duty: Modern Warfare II on the Steam Machine
Can the Steam Machine run Call of Duty: Modern Warfare II?
Not reliably — Valve's SteamOS compatibility check flags Call of Duty: Modern Warfare II as Unsupported, and the Steam Machine runs SteamOS.
Red here means a compatibility problem (often anti-cheat or a launcher), not too little GPU power, so lower settings won't fix it. Recommended RAM is 12 GB — comfortably within the Machine's 16 GB.
Key facts: Call of Duty: Modern Warfare II on Steam Machine
- Compatibility
- Compatibility issue (blocked). Valve rates it Unsupported on SteamOS — a compatibility flag, not a frame-rate result.
- Device & mode
- Steam Machine: Compatibility issue — Runs locally on SteamOS (1080p default)
- Steam Deck: Deck Unsupported — Runs locally on the handheld (800p)
- Steam Frame: Native status: unknown — Flatscreen — streamed from a Steam Machine to a virtual screen; native play not rated
- Performance
- No frame-rate data — we don't publish a number we don't hold.
- Conditions
- None recorded — there is no frame-rate test to describe.
- Basis
- Derived from SteamOS compatibility · 2 sources (2 linked) · data as of · methodology
- Limitations
- No frame-rate measured — the verdict is inferred from Valve's SteamOS compatibility rating.
- The cause of Valve's Unsupported flag (anti-cheat, launcher …) isn't recorded per game.
- ProtonDB players report it Borked — it doesn't currently run under Proton.
- Not recorded here: anti-cheat status, frame generation, game / SteamOS / Proton versions.
Blocked on SteamOS?
Cloud streaming runs the game on remote hardware, so SteamOS compatibility stops mattering — if your service carries it. Try cloud gaming (GeForce NOW / Game Pass).
At a glance across Valve's SteamOS devices
Analysis — Call of Duty: Modern Warfare II on the Steam Machine
ProtonDB agrees with Valve's flag: 77 reports rate it Borked — it won't start or is unplayable under Proton right now.
Steam lists only partial controller support — some menus or modes may still want a mouse, and Steam Input's community layouts are the first thing to try.
Frequently asked
Is Call of Duty: Modern Warfare II Steam Deck Verified?
Call of Duty: Modern Warfare II is currently flagged Unsupported on the Steam Deck.
Search other key stores for Call of Duty: Modern Warfare II — stock and price aren't checked by us (not Steam)
Real Steam Machine FPS reports like yours replace our derived estimates, one game at a time.
Submit a resultCall of Duty: Modern Warfare II appears in
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How we know this
Inferred from this title's official SteamOS compatibility rating, scaled to the Machine's roughly 6× Deck GPU power.
- Valve SteamOS compatibility: Unsupported · Valve (Steam store)
- ProtonDB: Borked, 77 reports · ProtonDBIndependent community signal shown alongside our verdict, not used to compute it.
Every verdict is labelled by confidence. Numbers are estimates unless tagged “measured.”
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