Postmouse on Valve's SteamOS devices
Postmouse, a modern adventure game, asks more than the Steam Machine can give — a steady frame-rate at 1080p, GPU-limited. It's flagged Unsupported on the Steam Deck.
At a glance across Valve's SteamOS devices
Steam Machine
~Radeon RX 7600 / GeForce RTX 4060 class · 8 GB GDDR6 (dedicated graphics memory) · 1080p–1440p native · 4K 60 with FSR upscaling
Struggles at the top settings?
You can still play it maxed-out by streaming from the cloud. Try cloud gaming (GeForce NOW / Game Pass).
Steam Deck
AMD RDNA 2, 8 CU (~1.6 TFLOPs) · 800p handheld (1280×800) · 15 W TDP
Steam Frame
2160×2160 per eye · 72–144 Hz · standalone + PC streaming
A flatscreen game. On the Frame it's played on a virtual big screen, best streamed from your Machine over the 6 GHz link.
Analysis — Postmouse on the Steam Machine
A adventure game like this is GPU-light — the RX 7600-class GPU clears high frame-rates with room to spare, so you can chase 120 Hz+ rather than just 60.
8 GB of VRAM is comfortable for this title at 1080p; you're unlikely to hit the texture-streaming wall unless you push 1440p with max textures.
Start at the Low/Medium preset + FSR Balanced, then claw back quality: shadows and volumetrics first, textures last (VRAM permitting). If the top settings matter more than native rendering, cloud streaming is the honest answer.
Big screen → the Steam Machine (struggles). Handheld → not a fit for the Deck, or streamed to the Frame on a virtual screen.
What-if FPS estimator
Scales our base Steam Machine verdict by typical per-setting costs — a directional what-if, not a measured benchmark. Real results vary by title and scene.
Frequently asked
Will Postmouse run on the Steam Machine?
It's a stretch — Postmouse pushes the Steam Machine's 8 GB VRAM / RX 7600-class GPU past a comfortable 60 fps even at lower settings. Playable at reduced settings or via cloud streaming.
Is Postmouse Steam Deck Verified?
Postmouse is currently flagged Unsupported on the Steam Deck.
Can you play Postmouse on the Steam Frame?
Postmouse is a flatscreen game. On the Steam Frame you'd play it on a virtual big screen, best streamed from a Steam Machine or PC over the 6 GHz link.
Compare prices across stores (not Steam)
Submit your FPS — your report sharpens this verdict.
Submit a resultGames with similar demands
Not yet testedNot yet testedMonolight
Steam Machine
Not yet testedNot yet testedEscape the Game
Steam Machine
Not yet testedNot yet testedScrapnaut: Prologue
Steam Machine
Not yet testedNot yet testedDev Guy
Steam Machine
Not yet testedNot yet testedHandy Dandy
Steam Machine
Runs greatRuns greatOnly If
Steam Machine · high
How we know this
Inferred from this title's official SteamOS / Steam Deck compatibility rating, scaled to the Machine's roughly 6× Deck GPU power.
Every verdict is labelled by confidence. Numbers are estimates unless tagged “measured.”
Drop the live badge in your Reddit signature, a forum post, or a README.
Player comments
Loading comments…