Tested on Linux with Wine, works fine!
Had a blast playing it, managed to get to level 3 or 4 don't remember now (mostly dying on 1 or 2) , but by that time i was down to ~2-3 hp and they killed me quite quickly, even member with heal spell and 12hp was dead in one move/one shot haha
One request i would have to move "M" to "W" so you have move and switching members closer together. I see what you trying to do M - move, but W can be Walk? And maybe "E" to End turn? Or add key reassignment so people can change it to their liking. But beside that, game has great potential if ever expanded.