Hello. Already solved the issue? If not, try this (instructions based in Ubuntu 20.04):
- Download the game
- Unpack it anywhere you want
- Go to /[where you unpacked the game]/DemonsRiseUpDEMO-pc/
- Right click the file "DemonsRiseUpDEMO.sh"
This is the file:
- Select "Properties"
- Go to the second tab of the window that just opened ("Permissões" in Portuguese, probably "Permissions" in English)
- Make sure the box that says something like "allow this file to be executed as a program" is ticked. If it's not, just tick it and close the window
The box I mentioned above is the one with a purple tick and right above the "desconhecido" word in this image (if it's not ticked, it'll be an empty box):
Sorry for the properties box being in Portuguese, but at least the layout should be the same so that you can follow
- Back in the folder of the file "DemonsRiseUpDEMO.sh", deselect anything that's selected, right click in any empty area of the folder and select "open in terminal"
- In the terminal window, type the command ./DemonsRiseUpDEMO.sh and press enter
Like this (I censored my username, btw):
- The game should open right after you run this command
Hopefully this helps you and anyone else that's having issues