Steam
From Rosalab Wiki
Install
Install Steam from non-free media
urpmi steam
For 64 first add 32-bit medias:
urpmi add32to64media
than install Steam
urpmi steam
After that you may delete add32to64media package or manually disable 32-bit medias.
Troubleshooting
If Steam say, that you has non-installed package, simple press Enter.