Because someone asked and I enjoy doing these studies. Approximately 53% of the US Saturn library was not released on the PlayStation. That leaves 142 Saturn titles. Of those 142, only 46 of them (32%) are not Sega games. The bottom line: 18% of the US Saturn library represents third-party titles that were not released on the PlayStation.

Excellent list to have if you're looking for unique Saturn stuff.

Acclaim Battle Monsters
Acclaim Break Point Tennis
Acclaim Darius Gaiden
Acclaim Galactic Attack
Acclaim Mortal Kombat II
Acclaim NFL Quarterback Club '96
Acclaim Robotica
Activision Shanghai: Triple Threat
Atlus High Velocity: Mountain Racing Challenge
Atlus Lunacy
Atlus Virtual Hydlide
Capcom Night Warriors: Dark Stalkers' Revenge
Crystal Dynam Horde, The
Crystal Dynam Solar Eclipse
Data East Creature Shock: Special Edition
Data East Dark Legend
Data East Minnesota Fats Pool Legend
DigitalPictures Corpse Killer: Graveyard Edition
DigitalPictures Double Switch
DigitalPictures Quarterback Attack with Mike Ditka
Eidos Crime Wave
Electronic Arts Hi-Octane: The Track Fights Back!
JVC Center Ring Boxing
Koei Heir of Zendor: The Legend and the Land
Koei PTO 2: Pacific Theater of Operations
Koei Winning Post
Midway Ultimate Mortal Kombat 3
Natsume Bust-a-Move 3
Natsume Highway 2000
Natsume Virtual Casino
OlderGames Lost & Found Volume 1
Playmates Earthworm Jim 2: Special Edition
SunSoft Galaxy Fight
Time Warner Last Gladiators Digital Pinball
Time Warner VR Virtua Racing
US Gold Olympic Soccer Atlanta 1996
Vic Tokai Shinobi Legions
Vic Tokai Valora Valley Golf
Virgin F1 Challenge
Virgin Hyper 3D Pinball
Working Designs Albert Odyssey: Legend of Eldean
Working Designs Dragon Force
Working Designs Iron Storm
Working Designs Magic Knight Rayearth
Working Designs Sega Ages
Working Designs Shining Wisdom