the game looks good and plays smooth,
but one small thing, wsad not working although descripted in tutorial
and as my keybord has no direct 'left/right' key, control is a bit hard.
extracting under linux met some errors:
ERROR: Unsupported Method : Isometric Medieval Pack(Patreon)/Sprites/Castle walls/castle_wall(10).png
ERROR: Unsupported Method : Isometric Medieval Pack(Patreon)/Spritesheets/Spritesheet.png
...also this happens with your dungeon package.
maybe you need recompress it with other software