This be a tutorial explaining how to resolve a complicated multi-layered problem with Steam not working under Fedora 23 with Nvidia kmod drivers from third-party repositories due to missing 32-bit libraries, a failed fix with additional driver installations and a successful fix using official Nvidia drivers, other recovery methods, tips and tricks, and more. Take a look. http://www.dedoimedo.com/computers/fedora-23-nvidia-steam.html Cheers, Mrk