I really like the idea of this--I've never seen procedurally generated Sokoban, and that feels like something interesting to build. It'd be unfair to judge the game in this state, but there are two issues I found that you probably aren't aware of, so I'll still raise them:
- The compressed archive should probably unpack to its own directory. The number of times I've unpacked a random tarball from itch.io without thinking and gotten my home directory full of game files...
- I unfortunately can't run the Linux version, as it depends on libFLAC at a lower version than what I have (8 instead of 12). Bundling more of the dependencies would hopefully make the game more future-proof.
Good luck on future progress with your engine!