| Sinclair ZX Spectrum cass. |  Mount Challenge | 1985 | Aasvoguelle Productions |
| Sinclair ZX Spectrum cass. | Murphy's Murder Hunt | 1985 | Bodkin Soft. |
| Sinclair ZX Spectrum cass. | Music And Lights | 1985 | Sphere Soft. |
| Sinclair ZX Spectrum cass. | N.O.M.A.D. Model 010231 | 1985 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum cass. | Nemo's Island | 1985 | Walrus Computing |
| Sinclair ZX Spectrum cass. | Neptune's Caverns | 1985 | Watts Inc., Franklin |
| Sinclair ZX Spectrum cass. | New Testament Adventure Quiz | 1985 | BIBLEchip |
| Sinclair ZX Spectrum cass. | New Wheels John? | 1985 | Automata U.K., Ltd. |
| Sinclair ZX Spectrum cass. | Nick Faldo plays the Open | 1985 | Mind Games London, England 013248 |
| Sinclair ZX Spectrum cass. |  Nick Faldo plays the Open | 1985 | Software House |
| Sinclair ZX Spectrum cass. | Nicotine Nightmare Model AT 316G | 1985 | Atlantis Soft. |
| Sinclair ZX Spectrum cass. | Nightshade Model 481014 | 1985 | Ultimate Play The Game |
| Sinclair ZX Spectrum cass. | Nine Currant Buns | 1985 | Arrow |
| Sinclair ZX Spectrum cass. | No 1 | 1985 | Bug-Byte London, England |
| Sinclair ZX Spectrum cass. | Nodes of Yesod | 1985 | Odin Computer Graphics |
| Sinclair ZX Spectrum cass. | Nonterraqueous Model IC 0078 | 1985 | Mastertronic, Ltd. UK 012967 |
| Sinclair ZX Spectrum cass. | O Segredo dos Templários | 1985 | Astor Soft. Portugal |
| Sinclair ZX Spectrum cass. | Objetivo - La Moncloa | 1985 | Software Center Spain |
| Sinclair ZX Spectrum cass. | Odd Job Eddie | 1985 | Strobe |
| Sinclair ZX Spectrum cass. | Odd Job Eddie + Witchfiend | 1985 | Strobe |
| Sinclair ZX Spectrum cass. | Oil Tycoon | 1985 | Global Games Scotland |
| Sinclair ZX Spectrum cass. | One Man and His Droid Model IS 0089 | 1985 | Mastertronic, Ltd. UK 012967 |
| Sinclair ZX Spectrum cass. | One on One - Julius Erving and Larry Bird Model AS 22010 | 1985 | Ariolasoft Germany |
| Sinclair ZX Spectrum cass. | Operation Cerberus Model MSS 11 | 1985 | MAP Soft. |
| Sinclair ZX Spectrum cass. | Operation Nightingale | 1985 | Softly Softly |
| Sinclair ZX Spectrum cass. | Orbit of Doom | 1985 | Watson, Dave |
| Sinclair ZX Spectrum cass. | Ordenador Educativo issue 01 | 1985 | Monser, S.A. Spain |
| Sinclair ZX Spectrum cass. | Ordenador Educativo issue 02 | 1985 | Monser, S.A. Spain |
| Sinclair ZX Spectrum cass. | Ordenador Educativo issue 03 | 1985 | Monser, S.A. Spain |
| Sinclair ZX Spectrum cass. | Ordenador Educativo issue 04 | 1985 | Monser, S.A. Spain |
| Sinclair ZX Spectrum cass. | Ordenador Educativo issue 05 | 1985 | Monser, S.A. Spain |
| Sinclair ZX Spectrum cass. | Ordenador Educativo issue 06 | 1985 | Monser, S.A. Spain |
| Sinclair ZX Spectrum cass. | Ordenador Educativo issue 07 | 1985 | Monser, S.A. Spain |
| Sinclair ZX Spectrum cass. | Orm And Cheep - Narrow Squeaks | 1985 | Macmillan Soft. |
| Sinclair ZX Spectrum cass. | Orm And Cheep - The Birthday Party | 1985 | Macmillan Soft. |
| Sinclair ZX Spectrum cass. | Otan Alerta + War Zone | 1985 | Juegos & Estrategia Spain |
| Sinclair ZX Spectrum cass. | Overlords | 1985 | MC Lothlorien |
| Sinclair ZX Spectrum cass. | Panzadrome Model AS 22906 | 1985 | Ariolasoft Germany |
| Sinclair ZX Spectrum cass. | Paradise In Microdot | 1985 | Automata U.K., Ltd. |
| Sinclair ZX Spectrum cass. | Patagoras issue 1 | 1985 | Ediciones SM |
