Action Free To Play IndieFull controller

Curse of Mermos on the Steam Machine

Not yet testedDerived from SteamOS compatibility

Can the Steam Machine run Curse of Mermos?

Curse of Mermos isn't rated for the Steam Machine yet — Steam publishes no SteamOS compatibility signal for it, and we'd rather say so than guess.

Where to buy Curse of Mermos

We'll publish a verdict as data arrives.

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Key facts: Curse of Mermos on Steam Machine

Compatibility: Not yet tested (unknown). No SteamOS compatibility signal for the Steam Machine yet.
Device & mode: Steam Machine: Not yet tested — Runs locally on SteamOS (1080p default)
Steam Deck: Unrated by Valve — 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: No verdict · 0 sources (0 linked) · data as of June 2026 · methodology
Limitations: No frame-rate measured and Valve hasn't rated it for SteamOS — there is no verdict yet.
Not recorded here: anti-cheat status, frame generation, game / SteamOS / Proton versions.

Steam Machine

Not yet tested

Not yet rated

Steam Deck

Unrated

No measured data yet

Steam Frame

Flatscreen

Stream to a virtual screen

Analysis — Curse of Mermos on the Steam Machine

CPU vs GPU

This kind of action game is GPU-bound on the Machine: the frame-rate follows resolution and post-processing. FSR is the main lever when frames get tight; effects and shadows go before textures.

What to expect

Curse of Mermos has no SteamOS rating yet. A similar game we do rate, Mortal Online, lands green on the Steam Machine — a reasonable first guide until this one gets its own verdict.

On the couch

Steam lists full controller support, so it plays from the sofa without a keyboard.