Prototypes by system/Sega Saturn

Alien Trilogy (Jul 23, 1996 prototype)

Armed (Jan 22, 1997 prototype)

Astrocade (Aug 1, 1994 prototype)

Battle Arena Toshinden URA (Nov 7, 1996 prototype)

Center Ring Boxing (Sep 26, 1995 prototype)

Chaos Control (May 29, 1996 prototype)

Chelnov (Jul 23, 1997 prototype)

Chill (Jan 19, 1998 prototype)

Clockwork Knight - Pepperouchau's Adventure Sample (Nov 15, 1994 build)

Clockwork Knight 2 (Aug 30, 1995 prototype)

Clockwork Knight: Pengin War (Oct 21, 1995 prototype)

Colliderz (Jun 13, 1997 prototype)

Contra: Legacy of War (January 28, 1997 Prototype)

Contra: Legacy of War (Sample Prototype)

Crime Patrol (Sep 25, 1996 prototype)

Crypt Killer (Jan 8, 1997 prototype)

Deep Fear (Jul 14, 1998 prototype)

Doom (Apr 10, 1996 Prototype)

Duke Nukem (Sep 18, 1997 prototype)

Earthworm Jim 2 (Dec 29, 1995 prototype)

Earthworm Jim 2 (Jan 5, 1996 prototype)

Ferox (Jul 29, 1997 prototype)

Fighters Megamix (Apr 8, 1997 prototype)

Fighting Vipers (Sep 6, 1996 prototype)

Heart of Darkness (May 31, 1996 prototype)

Hexen (Dec 12, 1996 prototype)

Judgement Force (Nov 26, 1996 prototype)

Lightning Gunner (Apr 14, 1997 prototype)

Loaded (Sep 3, 1996 prototype)

Major Damage (Jul 14, 1996 prototype)

Major Damage (Jun 14, 1996 prototype)

Mortal Kombat II (Jan 2, 1996 build)

NHL All-Star Hockey (Aug 10, 1995 prototype)

NiGHTS into Dreams (May 14, 1996 prototype)

Nights into Dreams (Special Sampler)

Panzer Dragoon II Zwei (Feb 5, 1996 prototype)

Panzer Dragoon Saga (Aug 26, 1997 demo)

Panzer Dragoon Saga (Dec 22, 1997 prototype)

Panzer Dragoon Saga (Dec 30, 1997 prototype)

Panzer Dragoon Saga (Nov 30, 1997 prototype)

Panzer Dragoon Saga (Sep 16, 1997 prototype)

Primal Rage (Feb 12, 1996 prototype)

Prime Selection Vol. 1 (Demo Disc)

Rayman (Jul 20, 1995 prototype)

Rebellion (Oct 15, 1996 prototype)

Return Fire (Oct 15, 1996 prototype)

Revolution X: Music Is The Weapon (Feb 2, 1996 prototype)

Rise 2: Resurrection (Mar 5, 1996 prototype)

Scud: The Disposable Assassin (Nov 6, 1996 prototype)

Sega DTS CD (November 1996)

Sega Rally Championship (Oct 31, 1995 prototype)

Sega Rally Championship Plus: NetLink Edition (Apr 16, 1997)

Sega Saturn BIOS (Oct 12, 1994)

Shining Force III (May 8, 1998 prototype)

Shining Force III (Segakore 1997 prototype)

Slam N' Jam 96 (Feb 1, 1996 prototype)

Solar Eclipse (Aug 29, 1995 prototype)

Sonic 3D Blast: Flickies Island (Oct 8, 1996 prototype)

Sonic R (Sep 10, 1997 prototype)

Sonic R (Trial Version)

Sonic X-treme (Jul 14, 1996 prototype)

Sonic X-treme (Jul 18, 1996 prototype)

Sonic X-treme (V40 prototype)

Star Wars: Rebel Strike (Jan 29, 1997 prototype)

Tennis Arena (Sep 15, 1997 prototype)

The House of the Dead (Jan 27, 1998 prototype)

Three Dirty Dwarves (Apr 17, 1996 prototype)

Time Warner Interactive's VR Virtua Racing (Oct 30, 1995 prototype)

Tomb Raider (Aug 2, 1996 prototype)

Ultimate Mortal Kombat 3 (Feb 7, 1996 prototype)

Virtua Cop (Jun 13, 1995 prototype)

Virtua Cop 2 (May 10, 1996 prototype)

Werewolf (Jul 23, 1996 prototype)

Werewolf (Jun 14, 1996 prototype)

Winning Post (Dec 27, 1995 prototype)

X-Men: Children of the Atom (Hibaihin)