I'm adding in here just in case.
Sometimes the file is not executable and simply running the command "./AShortHike.x86_64" will not work.
For that type "sudo chmod +x ./AShortHike.x86_64" in terminal (just open terminal after navigating to the game folder), it will set the executable. After that just type "./AShortHike.x86_64" .
//Remove the quotation, before using the commands. Same for only x86 file.