Mount&Blade: Warband. The expansion is planned to include multiplayer support as well as improved diplomacy, graphics and artificial intelligence.
Mytheon
The gameplay in Mytheon revolves around so-called "Power Stones". These stones allow their caster to summon structures, mythological creatures or unleash spells on an opponent.
Grand Theft Auto: Episodes from Liberty City
The Lost and Damned otherwise features similar gameplay to Grand Theft Auto IV. Additions to the game include new weapons, such as a grenade launcher, Automatic Pistol, half of a pool cue and pipe bombs, as well as sawn-off and automatic shotguns and new vehicles, such as Johnny's custom-made motorcycle.
Plain Sight
Plain Sight is, in the words of its creators, "A 3D multiplayer arcade game with robots, bombs, swords and messed-up physics."