( after | 2013. 09. 24., k - 13:22 )

Hülyeség vagy sem, a jelenlegi állás szerint a teljes játéktáradat adod át.

Can I share specific games, or do I have to share my whole library?

Libraries are shared and borrowed in their entirety.

Can a friend and I share a library and both play at the same time?

No, a shared library may only be accessed by one user at a time.