Use Itch.io app (easiest method)
OR
- Unpack tar file (use archive manager of your distro or the one you installed manually if there is one)
- Then make .x86_64 file executable (right-click menu > file properties > search for “executable” checkmark)
- And double click .x86_64 file to launch the game
OR
Use this commands in the same directory you downloaded archive to by opening terminal from correct folder in your file manager or doing cd command with required path (this does the same as previous method, but in terminal, may be needed if you use distribution without required features in preinstalled gui software, also, change every version in command to match file you downloaded)
tar -xf DiBS_0.4.4_lin.tar.gz
cd DiBS_0.4.4_lin
chmod +x DiBS_0.4.4.x86_64
./DiBS_0.4.4.x86_64
Last command will launch the game, after that you can also double click in file manager to launch