Xbox - U
- UEFA Champions League 2004-2005
- UEFA Euro 2004
- UFC Tapout
- UFC Tapout 2
- UFO - Aftershock
- Ultimate ATV
- Ultimate Beach Soccer
- Ultimate Doom
- Ultimate Fighting Championship - Tapout
- Ultimate Pro Pinball
- Ultimate Spider-Man
- Ultra Bust-A-Move
- Umesawa Ykari no Igo Seminar
- Underworld
- Unglaublichen
- Unglaublichen - Der Angriff des Tunnelgräbers
- Unreal 2 - the Awakening
- Unreal Chamionship
- Unreal Championship
- Unreal Championship 2
- Unreal Championship 2 - the Liandri Conflict
- Urban Chaos - Riot Response
- Urban Freestyle Soccer
- Urbz - Sims in the City