Hello!
I quickly made a patch to fix the infinite map generation bug when launching the game.
Sorry again, I hope it works, but if you still have bugs, don't hesitate to send me a screenshot of the game when it freezes.
Also, it seems that ALT + TAB is causing the game to bug.
New:
The full-screen option is available once the map is generated. Press F5 (full-screen mode slightly improves the quality and stability of the game).
Map generation has been reworked:
it should be faster, have more corridors, and fewer rooms.
I've also doubled the maximum size, but you might also get smaller maps during generation (this is random).
Linux compatibility added (Untested).