how do i install this game on linux?
1) Unpack the archive with a game or open the folder where it was installed by itch app;
2) Right-click on the x_86 / x86_64 file (depending on your system type) and select "Allow executing this file as an app";
3) Launch the app.
Possible issues with this app on Linux could be related to permissions, graphics drivers and maybe installing the Mono package. If the app doesn't work, I suggest trying Proton layer or Wine to launch the Windows version. There are lots of issues on the OS level that create issues for Unity apps there and it's out of my control.
I hope that it helped, thanks!
The version for Linux is stored in a .zip archive that you can unpack with right-click ->"Extract here" on Linux. If you want to unpack .7z archives on Linux, you can install 7zip on Linux with such a sequence of commands, and then it will be available for extraction with right-click menu, too:
sudo add-apt-repository universe
sudo apt update
sudo apt install p7zip-full p7zip-rar
It seems that your OS is missing the integration of the Archive Manager app into GUI ( https://askubuntu.com/questions/659778/cant-extract-archives-in-gui-anymore ), and you can fix this by running this command:
sudo apt-get install file-roller
I suggest installing the 7zip packages mentioned above afterward if you want to unpack .7z archives, too.