Description
You are on a Linux computer and you're unable to get Ultimate Chicken Horse to work.
Solution
There is a Linux version of Ultimate Chicken Horse on Steam, but it's still possible that you'll have trouble running it depending on the exact Linux build you are using.
If that's the case, you can instead run the Windows version of the game using Wine. Here are some general instructions:
Install Wine on your System
Download the Steam Windows installer and run it using Wine
Run Steam from Wine using the command line or a pre-made utility (e.g. "PlayOnLinux" or "winetricks steam") and install Ultimate Chicken Horse
For best performance, right click Ultimate Chicken Horse, go to "Properties > Set Launch Options..." and enter "-force-opengl" (without the quotes)