Once upon a Dungeon II on the Steam Machine

Not yet testedDerived from SteamOS compatibility

Can the Steam Machine run Once upon a Dungeon II?

Once upon a Dungeon II 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 — $11.99US Steam price as of Nov 10, 2026; yours may differ by region.

We'll publish a verdict as data arrives. Recommended RAM is 8 GB — comfortably within the Machine's 16 GB.

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Key facts: Once upon a Dungeon II 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 — Once upon a Dungeon II on the Steam Machine

CPU vs GPU

RPGs swing between light dungeons and busy hub towns, and the towns are the Zen 4 CPU's real test. If the frame-rate dips there, cut NPC density and draw distance before touching resolution.

What to expect

Once upon a Dungeon II has no SteamOS rating yet. A similar game we do rate, Legend of Dungeon, lands green on the Steam Machine — a reasonable first guide until this one gets its own verdict.

On the couch

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.