How DOOM: The Dark Ages Runs on the Steam Deck - Steam Deck HQ
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With SteamOS getting a quick new update, we decided to check out DOOM: The Dark Ages on the Steam Deck and see just how well it is running.

The TL;DR: The game won’t launch on current steamOS, but preview build 3.7.6 fixes the launch issue.

Unfortunately the game is unable to maintain decent frame rates even with severe reductions in graphical settings.

The drastic decrease in performance compared to Doom 2016/Doom Eternal is due to the game using mandatory ray tracing for lighting.

It’s possible that we’ll see some patches or mods that improve performance, but at launch it will not be a good deck experience.

EDIT: Not sure why Lemmy is embedding that youtube video, there’s an actual article about the performance, and there’s a different video on how the Steam Deck itself actually performs with the game.