Ukiyo Zoshi
( Cyberpunk Michael Wenmann )
Ulldart
( Fantasy Piper [HP] Markus Heitz )
Ultimate Power ( Universell Game Lords [HP] Blake Mobley )
Ultimate Run ( SciFi Cliff Hanger Games [HP] OOP Tony Lee )
Ultime Epreuve ( Fantasy Jeux Actuels [HP] OOP Fabrice Cayla )
Umbra
( Fantasy (Future) Dominik Pietzsch [Mail] )
UME ( Monster )
Under the Broken Moon
( Fantasy (Literarisch) Black Gate Publishing [HP] Brandon Blackmoor )
Underground ( Cyberpunk Mayfair Games [HP] )
Underlight ( Fantasy [HP] )
Undertow ( Endzeit Defenestration Games [HP] )
UnderWorld ( Fantasy Synister Creative Systems [HP] Gareth-Michael Skarka )
Undiscovered-The Quest for Adventure ( Eilfin Publishing [HP] Adam D. Theriault¸ Antonio Da Rosa¸ Phillip Theriault [Mail] )
Unearthed ( SciFi ZN Games [HP] )
Unhallowed Metropolis ( - )
Unhallowed Metropolis ( Horror Eos Press [HP] )
Unidice
( Universell Unidice [HP] Christoph Weingarten [Mail] )
UniSys
( Universell Jörg & Karl. Christian Marcussen )
Unisystem ( Universell Eden Studios [HP] )
United Space Forces
( General Powers [HP] )
Universal Combat System ( Astral Tower Games [HP] )
Universal Gaming Engine ( Universell Bert Martin )
Universal Soldier ( Fantasy )
Universalis ( Ramshead Publishing [HP] )
Universe ( SciFi (Space Opera) Simulations Publications Inc (SPI) * [HP] OOP John H. Butterfield )
Universell ( - )
Universom ( SciFi Siroz / Ideojeux * [HP] )
Unknown Armies
( Horror Vortex [HP] Atlas Games / MIB [HP] )
Unknown Regions
( Fantasy [HP] Bernhard Arnold [Mail] )
Unpronouncable ( Humor Meera Barry )
Unsanctioned ( Superhelden Crunchy Frog Enterprises / Nightshift Games [HP] )
Unter dem Weltenbaum
( Fantasy Piper [HP] )
Unter der dunklen Sonne
/ Dark Sun
( Endzeit TSR * [HP] )
Urban War ( - )
URPG
( Universell Martin Theiss )
URS-System
( Universell )
URSWASA ( Fantasy Stellae Cognitae [HP] )
Usagi Yojimbo ( Fantasy Gold Rush Games [HP] )
USF-United Space Forces
( SciFi [HP] )
Uuhrah ( Fantasy Blackhawk Games * [HP] OOP Bob King )
UUURS
( Fantasy UUURS-Team )