GaryOderNichts on GitHub got Doom running on the Nintendo Alarmo. In a video, the device is shown to run Doom on its tiny screen, being controlled with nothing other than the clock's top buttons.

END OF THE WORLD, DELAYED, DUE TO-DAY; Before 6 o'clock To-night, Say Immersionists, Since It Didn't Come Yesterday Morning. FRENZIED MEETINGS HELD Large Sums of Money Collected by the Church ...

TL;DR Key Takeaways : Doom: The Dark Ages struggles with performance on the Steam Deck, with frequent frame rate drops below 30 FPS, especially in demanding areas or combat sequences.