| Game Title | Country | Year | Publisher |
| G-Loc Air Battle | US | 1991 | SEGA Enterprises Ltd. |
| Gain Ground | US | 1990 | SEGA of America, Inc. |
| Galactic Protector | US | 1988 | SEGA Enterprises Ltd. |
| Galaxy Force | US | 1989 | SEGA Enterprises Ltd. |
| Game Box Serie Esportes Radicais | BR | 1994 | Tec Toy Industria de Brinquedos S.A. |
| Gangster Town | US | 1987 | SEGA Corporation |
| George Foreman's KO Boxing | US | 1992 | Flying Edge, Inc. |
| Ghostbusters | US | 1987 | SEGA of America, Inc. |
| Ghost House | US | 1986 | SEGA of America, Inc. |
| Ghouls 'N Ghosts | US | 1989 | SEGA of America, Inc. |
| Golden Axe | US | 1989 | SEGA of America, Inc. |
| Golden Axe Warrior | BR | 1991 | SEGA of America, Inc., Tec Toy Industria de Brinquedos S.A. |
| Golfamania | US | 1990 | SEGA Enterprises Ltd. |
| Golvellius: Valley of Doom | US | 1988 | SEGA Enterprises Ltd. |
| GP Rider | US | 1992 | SEGA Enterprises Ltd. |
| Great Baseball | US | 1987 | SEGA Corporation |
| Great Basketball | US | 1987 | SEGA Enterprises Ltd. |
| Great Football | US | 1987 | SEGA Enterprises Ltd., SEGA of America, Inc. |
| Great Golf | US | 1987 | SEGA Enterprises Ltd., SEGA of America, Inc. |
| Great Soccer | US | 1987 | SEGA of America, Inc. |
| Great Volleyball | US | 1987 | SEGA Enterprises Ltd., SEGA of America, Inc. |