| C_So! | KR | |
Sega | Unlicensed |
| Cacorm | WORLD | |
| Unlicensed |
| California Games | BR | 1989-05 |
Sega Enterprises | Commercial |
| California Games | EU | 1989-07 |
Sega Enterprises | Commercial |
| California Games | US | 1989-05 |
Sega Enterprises | Commercial |
| California Games II | EU | 1993-08 |
Sega Enterprises | Commercial |
| Candy Kid | WORLD | |
| Unlicensed |
| Canyon Racer | WORLD | |
| Prototype |
| Captain Silver | BR | 1988-07-02 |
Sega Enterprises | Commercial |
| Captain Silver | EU | 1988-07-02 |
Sega Enterprises | Commercial |
| Captain Silver | JP | 1988-07-02 |
Sega Enterprises | Commercial |
| Captain Silver | US | 1989-09 |
Sega Enterprises | Commercial |
| Captain Silver | US | 1989-09 |
Sega Enterprises | Prototype |
| Cardiac Arrest | WORLD | |
| Unlicensed |
| Casevac | WORLD | |
| Prototype |
| Casino Games | EU | 1989-11 |
Sega of America | Commercial |
| Casino Games | US | 1989-09 |
Sega of America | Commercial |
| Castelo Ra-Tim-Bum | BR | 1997-09 |
Tec Toy | Commercial |
| Castle Escape | WORLD | 2023-04 |
IrataHack | Unlicensed |
| Castle of Illusion Starring Mickey Mouse | BR | 1991-02 |
Sega of America | Commercial |
| Castle of Illusion Starring Mickey Mouse | EU | 1991-02 |
Sega of America | Commercial |
| Castle of Illusion Starring Mickey Mouse | US | 1991-02 |
Sega of America | Commercial |
| Cava-Cava | BR | 2007 |
Tec Toy | Commercial |
| Cave Wanderer | WORLD | |
| Prototype |
| Cavit | WORLD | |
| Unlicensed |
| Champions of Europe | BR | 1992-06 |
TecMagik | Commercial |
| Champions of Europe | EU | 1992-06-01 |
TecMagik | Commercial |
| Championship Hockey | EU | 1995-05 |
U.S. Gold | Commercial |
| Chapolim x Dracula - Um Duelo Assustador | BR | 1993 |
Tec Toy | Commercial |
| Chappie's Ears Simon Game | WORLD | |
| Unlicensed |
| Cheese Cat-astrophe Starring Speedy Gonzales | BR | 1995-05 |
Sega Enterprises | Commercial |
| Cheese Cat-astrophe Starring Speedy Gonzales | EU | 1995-05 |
Sega Enterprises | Commercial |
| Chicken Crossing | WORLD | |
| Prototype |
| Choplifter | BR | 1986-09 |
Sega Enterprises | Commercial |
| Choplifter | BR | 1986-09 |
Sega Enterprises | Prototype |
| Choplifter | EU | 1987-08 |
Sega Enterprises | Commercial |
| Choplifter | EU | 1987-08 |
Sega Enterprises | Prototype |
| Choplifter | JP | 1985 |
Sega Enterprises | Prototype |
| Choplifter | TW | 1986-09 |
Sega Enterprises | Unlicensed |
| Choplifter | US | 1986-09 |
Sega Enterprises | Commercial |
| Choplifter | US | 1986-09 |
Sega Enterprises | Prototype |
| Chouon Senshi Borgman | JP | 1988-12-01 |
Sega of America | Commercial |
| Chouon Senshi Borgman | JP | 1988-12 |
Sega of America | Prototype |
| Chuck Rock | BR | 1992-08 |
Virgin Games | Commercial |
| Chuck Rock | EU | 1992-08 |
Virgin Games | Commercial |
| Chuck Rock II - Son of Chuck | BR | 1994 |
Sega | Commercial |
| Chuck Rock II - Son of Chuck | EU | 1993-10 |
Sega | Commercial |
| Cimmerian | WORLD | |
| Demo |
| Cloud Master | BR | 1989-08 |
Sega Enterprises | Commercial |
| Cloud Master | EU | 1989-08 |
Sega Enterprises | Commercial |
| Cloud Master | TW | 1989-08 |
Sega Enterprises | Unlicensed |
| Cloud Master | US | 1989-08 |
Sega Enterprises | Commercial |
| Color & Switch Test | BR | |
| Commercial |
| Color & Switch Test | JP | |
| Prototype |
| Color Lines | WORLD | |
| Unlicensed |
| Colossal Cave Adventure - SAM Edition | WORLD | |
| Prototype |
| Columns | BR | 1990-09 |
Sega Enterprises | Commercial |
| Columns | BR | 1990-09 |
Sega Enterprises | Prototype |
| Columns | EU | 1990-11 |
Sega Enterprises | Commercial |
| Columns | EU | 1990-11 |
Sega Enterprises | Prototype |
| Columns | US | 1990-09 |
Sega Enterprises | Commercial |
| Columns | US | 1990-09 |
Sega Enterprises | Prototype |
| Comical Machine Gun Joe | JP | 1986-04-21 |
Sega Enterprises | Commercial |
| Comical Machine Gun Joe | KR | 1986-04 |
Sega Enterprises | Unlicensed |
| Comical Machine Gun Joe | TW | 1986-04 |
Sega Enterprises | Unlicensed |
| Con-Dori | KR | 1991 |
HiCom | Unlicensed |
| Cool Spot | EU | 1993-10 |
Virgin | Commercial |
| Copyright Violation | WORLD | |
| Demo |
| Cosmic Spacehead | EU | 1993-11 |
Codemasters | Commercial |
| Cracky | WORLD | |
| Unlicensed |
| Crazy Pinball | WORLD | 2024-04 |
eruiz00 | Unlicensed |
| Creature Capture | BR | 2007 |
Tec Toy | Commercial |
| Cross Bomber | WORLD | |
| Unlicensed |
| Cross Chase | WORLD | |
| Unlicensed |
| Cross Horde | WORLD | |
| Unlicensed |
| Cross Shoot | WORLD | |
| Unlicensed |
| Cross Shuriken | WORLD | |
| Unlicensed |
| Cross Snake | WORLD | 2021-05 |
Fabrizio Caruso | Unlicensed |
| Cross Stinger | WORLD | |
| Unlicensed |
| Cross TREX | WORLD | |
| Unlicensed |
| Cross Verbix | WORLD | |
| Unlicensed |
| Cyborg Hunter | BR | 1988-12 |
Sega of America | Commercial |
| Cyborg Hunter | BR | 1988-12 |
Sega of America | Prototype |
| Cyborg Hunter | EU | 1989-07 |
Sega of America | Commercial |
| Cyborg Hunter | EU | 1989-07 |
Sega of America | Prototype |
| Cyborg Hunter | US | 1989-01 |
Sega of America | Commercial |
| Cyborg Hunter | US | 1989-01 |
Sega of America | Prototype |
| Cyborg Z | KR | 1991 |
Zemina | Unlicensed |
| Cye | WORLD | |
| Demo |
| Daffy Duck in Hollywood | BR | 1994-12 |
Sega Enterprises | Commercial |
| Daffy Duck in Hollywood | EU | 1994-12 |
Sega Enterprises | Commercial |
| Dallyeora Pigu-Wang | KR | 1995 |
Game Line | Unlicensed |
| Danan - The Jungle Fighter | BR | 1990 |
Sega Enterprises | Commercial |
| Danan - The Jungle Fighter | EU | 1991-01 |
Sega Enterprises | Commercial |
| Danan - The Jungle Fighter | TW | 1990 |
Sega Enterprises | Unlicensed |
| Dangerous Demolition | WORLD | 2026-02 |
| Unlicensed |
| Data Storm | WORLD | |
| Unlicensed |
| Data Storm | WORLD | |
| Prototype |
| Dating Sim | WORLD | |
| Unlicensed |
| Dating Sim | WORLD | |
| Prototype |