Can confirm it still crashes, I'm playing the Linux version. I made some tests and I can tell it crashed whenever I sell a sea ruby in particular. Oh well, from everything else I could notice, first thing is that the mazes generated are very RNG dependent, one time I got all 6 treasures clustered together and collected them before half of my oxygen ran out, other times they were impossibly deep and separated. Other than that, I'm not sure pressing E to collect them was adding anything to the gameplay, might as well let us collect just by swimming into them. But I wish I could play more to find out more. But good job making a game for the game jam!