I started a channel to show games those run natively on Linux. I see I'm not the first one to make a gameplay video, but here is mine. :)
No worries. I checked the new version and it's 64-bit. I made the video with your first build and that was 32-bit for some reason (seen in the video when I checked with the "file" command). It's relevant because on Linux you have to install the 32-bit system libraries to run a 32-bit program on a 64-bit OS. Btw, did you increase the movement speed in the new version? Feels like I'm walking faster, but maybe it's just an illusion.