| IBM PC 5.25in. disk |  Monty Python's Flying Circus Model 20154 | 1991 | Virgin Mastertronic International, Inc. USA |
| IBM PC 5.25in. disk |  Moon Patrol Model DX5519 | 1983 | Atarisoft Atari, Inc. |
| IBM PC 5.25in. disk | Moonmist Model IM5-IB2 | 1986 | Infocom, Inc. MA, USA 51051 |
| IBM PC 5.25in. disk | Moonwalker Model 546314 | 1989 | US Gold, Ltd. Birmingham, England 13442 |
| IBM PC 5.25in. disk | Moraff's Monster Bridge Model 430 Sw | 199? | Mr. Disk |
| IBM PC 5.25in. disk | Mortville Manor | 1988 | Lankhor |
| IBM PC 5.25in. disk | Mr. Cool | 1983 | Sierra On-Line, Inc. USA 20626 |
| IBM PC 5.25in. disk | Ms. Pac-Man | 1983 | NAMCO, Ltd. Japan |
| IBM PC 5.25in. disk | Ms. Pac-Man Model DX5527 P | 1983 | Atarisoft Atari, Inc. |
| IBM PC 5.25in. disk | Murder Club | 1989 | Kyodai Soft. Marketing, Inc. |
| IBM PC 5.25in. disk | Murder on the Zinderneuf Model 1052 | 1984 | Electronic Arts CA, USA 14633 |
| IBM PC 5.25in. disk | Murders in Space | 1990 | Infogrames Interactive, Inc. 329720 |
| IBM PC 5.25in. disk | Mychess P | 1984 | Software Toolworks, The |
| IBM PC 5.25in. disk | Narco Police | 1989 | Iron Byte |
| IBM PC 5.25in. disk | NBA - Team Builder Model 44854T | 1991 | Microcomputer Games |
| IBM PC 5.25in. disk | NBA Model 44854 | 1988 | Microcomputer Games |
| IBM PC 5.25in. disk | Night Mission Pinball | 1982 | SubLOGIC Corp. Champaign, IL, USA |
| IBM PC 5.25in. disk | Night Shift Model 4261 | 1990 | Lucasfilm Games |
| IBM PC 5.25in. disk | Night Stalker | 1982 | Mattel Electronics Mattel, Inc. |
| IBM PC 5.25in. disk | Nightwalker Model 132-0149 | 1983 | Adventure International |
| IBM PC 5.25in. disk | Ninja P | 1986 | Mastertronic, Ltd. UK 012967 |
| IBM PC 5.25in. disk | No Greater Glory - The American Civil War | 1991 | SSI Strategic Simulations, Inc. 16685 |
| IBM PC 5.25in. disk | Nord and Bert Couldn't Make Head or Tail of It Model IC3-IB1 | 1987 | Infocom, Inc. MA, USA 51051 |
| IBM PC 5.25in. disk | Novatron | 1982 | VeriSoft Works AZ, USA |
| IBM PC 5.25in. disk | Nutrition and Food Groups Model MECC-I111 | 198? | MECC Minnesota Educational Computing Corp. |
| IBM PC 5.25in. disk | Objectif Europe | 1987 | Coktel Vision |
| IBM PC 5.25in. disk | Objectif France | 1987 | Coktel Vision |
| IBM PC 5.25in. disk | Oil's Well P | 1984 | Sierra On-Line, Inc. USA 20626 |
| IBM PC 5.25in. disk | Oliver & Company | 1989 | Coktel Vision |
| IBM PC 5.25in. disk | Olivetti Prodest PC1 Games Collection 1 | 1987 | Olivetti Prodest Milan, Italy |
| IBM PC 5.25in. disk | Olivetti Prodest PC1 Games Collection 6 | 1987 | Olivetti Prodest Milan, Italy |
| IBM PC 5.25in. disk | Olivetti Prodest PC1 Games Collection 7 | 1987 | Olivetti Prodest Milan, Italy |
| IBM PC 5.25in. disk | Olivetti Prodest PC1 MS-DOS Ver.3 + GW BASIC + Lode Runner | 1987 | Olivetti Prodest Milan, Italy |
| IBM PC 5.25in. disk | Omni-Play Basketball | 1989 | SportTime |
| IBM PC 5.25in. disk | Omni-Play Horse Racing | 1989 | SportTime |
| IBM PC 5.25in. disk | Omnicron Conspiracy Model 15785D | 1989 | Epyx, Inc. Redwood City, CA, USA |
| IBM PC 5.25in. disk | One Hundred and One Monochrome Mazes | 1983 | IBM Corp. International Business Machines |
| IBM PC 5.25in. disk | One on One - Julius Erving and Larry Bird Model 1049 | 1984 | Electronic Arts CA, USA 14633 |
| IBM PC 5.25in. disk | Onslaught Model 400044 | 1990 | Hewson Consultants, Ltd. England 012635 |
| IBM PC 5.25in. disk | Operation Market Garden - Drive on Arnhem, September 1944 P | 1985 | SSI Strategic Simulations, Inc. 16685 |
