Seems to be a pretty good port! Very playable.
The appimage is a little graphically glitchy on my linux machine though – it borks my multi monitor setup so I have to disable one monitor before I play, and it sometimes does a flickery lockup when loading a new level, but I can fix that be just returning to the menu and then going back into the game.
On a personal level, frame rates have never been a big hangup for me, and in fact high framerates can be a bit jarring combined with chunky pixels and animations with few frames. It’s not as objectionable here as I’ve seen elsewhere, but it does feel slightly off in the back of my mind.
I do like the ability to change weapons with the scroll wheel though!
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