The most talked-about dedicated multiplayer release right now is from Double Fine. It is a team-based game that focuses on "thoughtful weirdness."
: A master game theorist is sent to an alien civilization where a complex game determines social and political hierarchy.
: Rodriguez is a charming lead; the group camaraderie provides genuine laughs.
For a "multiplayer" experience in literature, Iain M. Banks' remains the gold standard for exploring the social and political implications of gaming.