| Sega Master System cart. |  Line of Fire Model 9006 P | 1991 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. |  Lord of the Sword Model 7016 | 1988 | Tonka Corp. MN, USA |
| Sega Master System cart. | Lucky Penguin Hb | 2020 | Denine |
| Sega Master System cart. | Marble Madness Model 27024-50 P | 1992 | Virgin Games, Ltd. UK 013715 |
| Sega Master System cart. |  Master Games 1 Model 9020 | 1993 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Master of Darkness Model 025110 | 1993 | Tec Toy Industria de Brinquedos S.A. Brazil |
| Sega Master System cart. | Master of Darkness Model 7107 | 1992 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Masters of Combat Model 7124 | 1993 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Maze Hunter 3-D Model 8003 | 1988 | Tonka Corp. MN, USA |
| Sega Master System cart. | Maze Hunter 3-D Model 8003 | 1988 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Mazy Hb | 202? | Inufuto |
| Sega Master System cart. | Mercs Model 9007 P | 1987 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Michael Jackson's Moonwalker Model 7052 | 1990 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Mick & Mack as the Global Gladiators Model MK-27062-50 | 1993 | Virgin Games, Ltd. UK 013715 |
| Sega Master System cart. | Mickey's Ultimate Challenge Model 028700 P | 1998 | Tec Toy Industria de Brinquedos S.A. Brazil |
| Sega Master System cart. | Micro Machines Model 19001 | 1994 | Codemasters Soft. Co., Ltd., The 015026 |
| Sega Master System cart. | Miracle Warriors - Seal of the Dark Lord Model 7500 | 1988 | Tonka Corp. MN, USA |
| Sega Master System cart. | Missile Defense 3-D Model 023230 | 1987 | Tec Toy Industria de Brinquedos S.A. Brazil |
| Sega Master System cart. | Missile Defense 3-D Model 8001 | 1987 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Master System cart. | Missile Defense 3-D Model 8001 | 1987 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Mo zhan che | 1986 | Unknown Taiwan |
| Sega Master System cart. | Monopoly Model 5500 | 1988 | Tonka Corp. MN, USA |
| Sega Master System cart. | Monopoly Model 5500 | 1988 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Montezuma's Revenge Featuring Panama Joe Model 4370 | 1989 | Parker Bros. Beverly, MA, USA |
| Sega Master System cart. | Mortal Kombat 3 Model 028730 P | 1996 | Tec Toy Industria de Brinquedos S.A. Brazil |
| Sega Master System cart. | Mortal Kombat II Model 028.530 | 1994 | Tec Toy Industria de Brinquedos S.A. Brazil |
| Sega Master System cart. | Mortal Kombat II Model MK-29029-50 | 1994 | Acclaim Ent., Inc. Glen Cove, NY, USA |
| Sega Master System cart. | Mortal Kombat Model MK-29021-50 P | 1993 | Arena Ent. |
| Sega Master System cart. | Mônica no Castelo do Dragao | 1991 | Tec Toy Industria de Brinquedos S.A. Brazil |
| Sega Master System cart. | Ms. Pac-Man Model 301030-0160 P | 1991 | Tengen, Inc. Milpilas, CA, USA |
| Sega Master System cart. | My Hero Model 021030 P | 1986 | Tec Toy Industria de Brinquedos S.A. Brazil |
| Sega Master System cart. | My Hero Model 4501 P | 1986 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | NBA Jam | 1994 | Acclaim Ent., Inc. Glen Cove, NY, USA |
| Sega Master System cart. | Nemesis P | 1987 | Zemina Korea |
| Sega Master System cart. | Neuras Hb | 2021 | Inufuto |
| Sega Master System cart. | Ninja Gaiden Model 7101 | 1992 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Nuclear Creature Model 021050 P | 1986 | Tec Toy Industria de Brinquedos S.A. Brazil |
| Sega Master System cart. | Olympic Gold Model 27030-50 | 1992 | US Gold, Ltd. Birmingham, England 13442 |
| Sega Master System cart. | Operation Wolf Model 7039 P | 1990 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Out Run 3-D Model 8007 | 1991 | SEGA Enterprises, Ltd. Tokyo, Japan |
