| Sinclair ZX Spectrum+3 disk |  Cosmic Sheriff | 1990 | Dinamic Soft. Madrid, Spain |
| Sinclair ZX Spectrum+3 disk | Count and Add | 1992 | Lander |
| Sinclair ZX Spectrum+3 disk | Crack City | 1989 | Zenobi Soft. |
| Sinclair ZX Spectrum+3 disk | Crack Down | 1990 | Erbe Soft. Spain |
| Sinclair ZX Spectrum+3 disk | Crash Landing | 199? | Adventure Workshop, The |
| Sinclair ZX Spectrum+3 disk | Cray-5 Hb | 2011 | RetroWorks |
| Sinclair ZX Spectrum+3 disk | Crazy Cars | 1988 | Titus Gagny, France |
| Sinclair ZX Spectrum+3 disk | Crazy Cars II | 1988 | Titus Gagny, France |
| Sinclair ZX Spectrum+3 disk |  Crazy Cars II | 1988 | Proein Soft Line Spain |
| Sinclair ZX Spectrum+3 disk | Cricket Master | 1989 | Challenge Soft. |
| Sinclair ZX Spectrum+3 disk | Crown Jewels | 199? | Adventure Workshop, The |
| Sinclair ZX Spectrum+3 disk | Crystal Kingdom Dizzy Hb | 2017 | Team Yolkfolk |
| Sinclair ZX Spectrum+3 disk | Crystals of Kings | 1993 | Zenobi Soft. |
| Sinclair ZX Spectrum+3 disk | Curro Jimenez | 1989 | Zigurat Soft. Spain |
| Sinclair ZX Spectrum+3 disk | Cursed be the City | 199? | Adventure Workshop, The |
| Sinclair ZX Spectrum+3 disk | Cybernoid - The Fighting Machine | 1988 | Hewson Consultants, Ltd. England 012635 |
| Sinclair ZX Spectrum+3 disk | Cybernoid II - The Revenge | 1988 | Hewson Consultants, Ltd. England 012635 |
| Sinclair ZX Spectrum+3 disk | Daley Thompson's Olympic Challenge | 1988 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum+3 disk | Dan Dare Collection | 1988 | Dro Soft. Madrid, Spain |
| Sinclair ZX Spectrum+3 disk | Dan Dare II - Mekon's Revenge | 1988 | Virgin Games, Ltd. UK 013715 |
| Sinclair ZX Spectrum+3 disk | Dan Dare III - The Escape | 1990 | Virgin Games, Ltd. UK 013715 |
| Sinclair ZX Spectrum+3 disk | Dances With Bunny Rabbits | 199? | Adventure Workshop, The |
| Sinclair ZX Spectrum+3 disk | Danger Adventurer at Work! | 199? | Adventure Workshop, The |
| Sinclair ZX Spectrum+3 disk | Danger Adventurer at Work! Two | 199? | Adventure Workshop, The |
| Sinclair ZX Spectrum+3 disk | Darius+ | 1990 | Edge, The |
| Sinclair ZX Spectrum+3 disk | Dark Fusion | 1988 | Gremlin Graphics Soft., Ltd. 013658 |
| Sinclair ZX Spectrum+3 disk | Dark Side | 1988 | System 4 de Espana, S.A. Spain |
| Sinclair ZX Spectrum+3 disk | Dark Side | 1988 | Incentive Soft., Ltd. |
| Sinclair ZX Spectrum+3 disk | Data East's Arcade Alley | 1988 | US Gold, Ltd. Birmingham, England 13442 |
| Sinclair ZX Spectrum+3 disk | Dead End | 199? | Adventure Workshop, The |
| Sinclair ZX Spectrum+3 disk | Death Wish 3 | 1987 | Gremlin Graphics Soft., Ltd. 013658 |
| Sinclair ZX Spectrum+3 disk | Deathbringer | 199? | Adventure Workshop, The |
| Sinclair ZX Spectrum+3 disk | Deception of the Mind's Eye | 1993 | Electric Storm Productions |
| Sinclair ZX Spectrum+3 disk | Deek's Deeds | 1990 | Zenobi Soft. |
| Sinclair ZX Spectrum+3 disk | Defenders of the Earth | 1990 | Enigma Variations |
| Sinclair ZX Spectrum+3 disk | Deflektor | 1987 | Gremlin Graphics Soft., Ltd. 013658 |
| Sinclair ZX Spectrum+3 disk | Delbert's Hamster Wheel of Fortune | 1992 | Delbert the Hamster Soft. |
| Sinclair ZX Spectrum+3 disk | Desafio Total | 1991 | Erbe Soft. Spain |
| Sinclair ZX Spectrum+3 disk | Desmond and Gertrude | 1991 | Delbert the Hamster Soft. |
| Sinclair ZX Spectrum+3 disk | Detective | 199? | Adventure Workshop, The |
