Game System
- Ubiquity Role Playing System12
- Ubongo Extreme12
- Ultimate Dungeon Showdown12
- Universal Soldier12
- Vampire Hunter12
- Vortex: CMSG12
- WEREWOLF: THE APOCALYPSE12
- Warbands12
- Wardlings12
- Wargods Skirmish12
- Wargods of Olympus12
- Warhammer 40K: Know No Fear12
- Warhammer Age of Sigmar: Champions12
- Warlands12
- Waterloo12
- Who Goes There?12
- Wild Space12
- Word on the Street12
- Wordariffic12
- Xcrawl12