| Sinclair ZX Spectrum cass. |  By Fair Means...or Foul | 1989 | Superior Soft. |
| Sinclair ZX Spectrum cass. | C&VG issue 088 | 1989 | C&VG |
| Sinclair ZX Spectrum cass. | Cabal Model 013478 P | 1989 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum cass. | Canyon Warrior Model PAL SP9 | 1989 | Mastertronic, Ltd. UK 012967 |
| Sinclair ZX Spectrum cass. | Captain Fizz | 1989 | Psyclapse |
| Sinclair ZX Spectrum cass. | Captain Kook | 1989 | Essential Myth, The |
| Sinclair ZX Spectrum cass. |  Carrier Command | 1989 | MCM Soft. Spain |
| Sinclair ZX Spectrum cass. | Carrier Command Model 101024 | 1989 | Rainbird Soft. UK 012439 |
| Sinclair ZX Spectrum cass. | Casanova Model SEC 572 | 1989 | Iber Soft. Spain |
| Sinclair ZX Spectrum cass. | Cazafantasmas II Model LYSEC-716 | 1989 | MCM Soft. Spain |
| Sinclair ZX Spectrum cass. |  Chain Reaction Model 200350 | 1989 | Encore 012189 |
| Sinclair ZX Spectrum cass. | Championship Soccer | 1989 | STD Soft. |
| Sinclair ZX Spectrum cass. | Chase H.Q. Model 013553 P | 1989 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum cass. | Chicago 30's | 1989 | US Gold, Ltd. Birmingham, England 13442 |
| Sinclair ZX Spectrum cass. | Chicago's 30 + Coliseum | 1989 | IBSA Spain |
| Sinclair ZX Spectrum cass. | Chips Are Forever | 1989 | Futuresoft |
| Sinclair ZX Spectrum cass. | Chuck Yeager's Advanced Flight Trainer Model E01262EI | 1989 | Electronic Arts Home Computer Soft. UK 15839 |
| Sinclair ZX Spectrum cass. | Classic Punter | 1989 | GTI Soft. |
| Sinclair ZX Spectrum cass. | Classic Trainer | 1989 | GTI Soft. |
| Sinclair ZX Spectrum cass. | Cleric's Quest | 1989 | Global Games Scotland |
| Sinclair ZX Spectrum cass. | Clock Chess '89 | 1989 | CP Soft. |
| Sinclair ZX Spectrum cass. | Cobra Force | 1989 | Players Premier |
| Sinclair ZX Spectrum cass. | Coleccion Dinamic 90 | 1989 | Dinamic Soft. Madrid, Spain |
| Sinclair ZX Spectrum cass. | Colosseum Model 539248 | 1989 | Kixx 013442 |
| Sinclair ZX Spectrum cass. | Comando Quatro Model CQ-009-SPE | 1989 | Zigurat Soft. Spain |
| Sinclair ZX Spectrum cass. | Comando Tracer Model SPE 890028 | 1989 | Dinamic Soft. Madrid, Spain |
| Sinclair ZX Spectrum cass. | Command Performance | 1989 | US Gold, Ltd. Birmingham, England 13442 |
| Sinclair ZX Spectrum cass. | Continental Circus | 1989 | Virgin Mastertronic, Ltd. UK |
| Sinclair ZX Spectrum cass. | Corsarios | 1989 | Opera Soft. Spain |
| Sinclair ZX Spectrum cass. | Cosmic Pirate | 1989 | Byte Back 018854 |
| Sinclair ZX Spectrum cass. | Cosmos | 1989 | Futuresoft |
| Sinclair ZX Spectrum cass. | Count Duckula Model AS 748 | 1989 | Alternative Soft., Ltd. |
| Sinclair ZX Spectrum cass. | County Cricket Model CC2 | 1989 | D & H Games |
| Sinclair ZX Spectrum cass. | Cowboy Kidz | 1989 | Byte Back 018854 |
| Sinclair ZX Spectrum cass. | Crack City | 1989 | Zenobi Soft. |
| Sinclair ZX Spectrum cass. | Crack-Up Model AT 354 | 1989 | Atlantis Soft. |
| Sinclair ZX Spectrum cass. |  Crash issue 60: Sneak Preview 4 | 1989 | Crash, Ltd. |
| Sinclair ZX Spectrum cass. | Crash issue 63: Crucial | 1989 | Crash, Ltd. |
| Sinclair ZX Spectrum cass. | Crash issue 65: Presents 01 | 1989 | Crash, Ltd. |
| Sinclair ZX Spectrum cass. | Crash issue 66: Presents 02 | 1989 | Crash, Ltd. |
