do you have a linux operating system?
(chromebook-linux)drag and drop the unzipped version of the game into the linux folder.
then go to the terminal and type in
cd WHATEVER THE NAME OF THE FOLDER IS
chmod +x Name-of-file.x86_64
./Name-of-file.x86_64
for other devices running a linux distro you might wanna look at a tutorial on how todo so.