Try running the game through itch - https://itch.io/
Otherwise, using the command line you need to make geographicalAdeventures.x86_64 executable and run it like so:
sudo chmod +x geographicalAdeventures.x86_64 && sudo ./geographicalAdeventures.x86_64
The game doesn't appear to be working on my Linux machine (Linux Mint 21.1).
It isn't working through the installer or through Itch sadly. I'll try my hand at debugging it. But a fix would be very much appreciated.
This is the error message:
NullReferenceException: Object reference not set to an instance of an object
at GameController.get_CurrentState () [0x00005] in <700f2c2945814e1a82b24b32f39fea40>:0
at GameController.IsState (GameState state) [0x00000] in <700f2c2945814e1a82b24b32f39fea40>:0
at MainMenu.LateUpdate () [0x00000] in <700f2c2945814e1a82b24b32f39fea40>:0