itch.io

I think he means here on Itch

You can check out this google support page.

It might involve some fiddling with the linux terminal to extract the tar.gz file in order to run the game.

To extract, use:

cd /[folder where the linux version is]

sudo tar -xf [linux version].tar.gz

That should create a folder with the same name as the tar file. cd (change directory) to that folder and I think you can run the game with

./[game]

It's a bit complicated and I'm not sure this will work but good luck.

If your chromebook supports a linux container you could give the linux version a shot.