Games to play (Game Sessions Proposals)

Propositions of game to play - please add your own ideas! The only constraint is that it should be online and multiplayer (best if more than 2 players at a time). If the game is not free software please indicate it. Thanks!

Free Software Games

 * Poker
 * Pictionary
 * Warsow (FPS)
 * OpenArena (FPS)
 * 0 AD (RTS)
 * Wesnoth (Turn-based strategy)
 * Myst Online
 * OpenTTD (transport tycoon)
 * Simutrans (transport tycoon)
 * Teeworlds (scrolling shooter)
 * AssaultCube (FPS)
 * Hedgewars (Worms-like)
 * Ryzom (MMORPG) - hehe ;p

Proprietary Games

 * Starcraft (RTS)
 * Age of Empires (RTS)
 * Civilization (turn-based strategy)
 * Battlefield (FPS)
 * Eve Online (MMORPG)
 * Minecraft (online world)
 * PlanetSide (massive FPS)
 * Team Fortress (FPS)
 * ConquerClub (Risk-like)
 * Assassin's creed 3 multi
 * Halo (FPS)
 * The 4th Coming
 * Irc games