Warhammer 40,000: Battle Sister on the Steam Machine

Not yet testedDerived from SteamOS compatibilityProtonDB Gold· 3 reports

Can the Steam Machine run Warhammer 40,000: Battle Sister?

Warhammer 40,000: Battle Sister isn't rated for the Steam Machine yet — Steam publishes no SteamOS compatibility signal for it, and we'd rather say so than guess.

Buy on Steam — $19.99US Steam price as of Nov 8, 2026; yours may differ by region.

We'll publish a verdict as data arrives. Recommended RAM is 16 GB — exactly the Machine's 16 GB.

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Key facts: Warhammer 40,000: Battle Sister 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: 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: No verdict · 1 source (1 linked) · data as of June 2026 · methodology
ProtonDB: Gold, 3 reports
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

Unsupported

No measured data yet

Steam Frame

Flatscreen

Stream to a virtual screen

Analysis — Warhammer 40,000: Battle Sister 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

Warhammer 40,000: Battle Sister has no SteamOS rating yet. A similar game we do rate, Warhammer 40,000: Shootas, Blood & Teef, lands green on the Steam Machine — a reasonable first guide until this one gets its own verdict.