| Acorn BBC Micro B cass. |  Castle Assault Model 5907 | 1985 | Blue Ribbon Soft., Ltd. |
| Amstrad CPC cass. | Castle Assault Model 8903 | 1985 | Blue Ribbon Soft., Ltd. |
| MSX cass. | Castle Combat | 1985 | SVI SpectraVideo, Inc. |
| Amstrad CPC cass. | Castle Dracula | 1985 | Duckworth Home Computing |
| Commodore C64 type-in | Castle Dracula | 1985 | Duckworth Home Computing |
| Commodore C16 cass. | Castle Dracula Adventure 5 | 1985 | Microdeal |
| Sharp X1 cass. | Castle Excellent Model 2018101 | 1985 | ASCII Corp. Japan |
| Fujitsu FM-7 cass. | Castle Excellent Model 2018102 | 1985 | ASCII Corp. Japan |
| Fujitsu FM-7 5.25in. disk | Castle Excellent Model 2018103 | 1985 | ASCII Corp. Japan |
| NEC PC-8801 Series disk | Castle Excellent Model 2018104 | 1985 | ASCII Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | Castle Excellent Model 2018107 | 1985 | ASCII Corp. Japan |
| Applied Technology Microbee cass. | Castle of Doom | 1985 | SMUG Sydney Microbee User Group |
| Commodore C64 disk | Castle of Terror | 1985 | Melbourne House UK 015901 |
| Acorn BBC/Electron cass. | Castle Quest | 1985 | Micro Power, Ltd. |
| Acorn BBC Micro B disk | Castle Quest | 1985 | Micro Power, Ltd. |
| Acorn BBC ROM | Castle Quest | 1985 | Micro Power, Ltd. |
| Sinclair ZX Spectrum+3 disk | Castles and Clowns | 1985 | Macmillan Soft. |
| Sony SMC-777 type-in | Cat Wars | 1985 | Dempa Shinbunsha Japan |
| Amstrad CPC type-in | Cata-Tir | 1985 | Editions Mondiales France |
| Amstrad CPC cass. | Catastrophes - Ile Infernale Model SOFT 934 | 1985 | Andromeda Soft. |
| Amstrad CPC 464 disk | Catastrophes Model SOFT 41934 | 1985 | Amsoft |
| Amstrad CPC cass. | Catastrophies Model SOFT 4934 | 1985 | Andromeda Soft. |
| Commodore VIC-20 type-in | Catch the Fish | 1985 | Tronic-Verlag GmbH |
| Arcade Video game |  Catch-22 | 1985 | Exidy, Inc. Sunnyvale, CA, USA |
| Commodore VIC-20 type-in | Catchgo | 1985 | Tronic-Verlag GmbH |
| Commodore C64 disk | Category Showdown | 1985 | J&F Publishing, Inc. |
| Sinclair ZX Spectrum cass. | Cauldron + The Evil Dead Model PSC 1008 P | 1985 | Palace Soft. 013518 |
| Amstrad CPC cass. | Cauldron Model PAD 1010 P | 1985 | Palace Soft. 013518 |
| Amstrad CPC 464 disk | Cauldron Model PAE 1014 P | 1985 | Palace Soft. 013518 |
| Commodore C64 cass. | Cauldron Model PCC 1007 | 1985 | Palace Soft. 013518 |
| Commodore C16 cass. | Cave Fighter | 1985 | Bubble Bus Soft. |
| Commodore C16 cass. | Cave Fighter +4 Ver. | 1985 | Bubble Bus Soft. |
| Commodore C64 type-in | Cave Girl Clair | 1985 | Addison-Wesley Publishing Co., Inc. |
| Amstrad CPC type-in | Cave-Runner | 1985 | Tronic-Verlag GmbH |
| Atari 400/800 disk | Cavelord Model DXG 55006 | 1985 | Atari-Elektronik Vertriebsgesellschaft mhB Hamburg, Germany |
| Acorn BBC Micro B cass. | Caveman Capers | 1985 | Icon Soft. |
| Acorn BBC/Electron cass. | Caveman Capers Model ICN4BA | 1985 | ASL Audiogenic Soft., Ltd. |
| IBM PC DOS pack. | Cavequest Ver. 1.1 Sw | 1985 | Lightwave Consultants |
| Tangerine Oric 1 type-in | Cavern | 1985 | Shift Editions Paris, France |
| Commodore C64 cass. | Caverns of Eriban Model 000488 | 1985 | Firebird Soft. UK 012439 |
