Yeah, I kinda-sorta wanted to make custom levels a bit better supported They are quite human-readable. Even the map files are simple (a tilemap and a vector field), but you'd need tools to efficiently edit these. Level names and level count are hard-coded, but I think I'll make a "custom levels" directory where additional levels could be dynamically detected and loaded. If I'll have time to spare, I could maybe tidy-up and release my own map editing tools.