The sports and strategy game with multiplayer support Adorables is free, for Windows, 100% free to keep, in a time limited giveaway offer. Go get it! Adorables can normally cost U$4.99!
Tag: Soccer
SuperTuxKart
SuperTuxKart is a 3D open source (and free) arcade kart racer with multiple characters, tracks and modes (including local multiplayer) you can play. Beat the evil Nolok by any means necessary!