| Sinclair ZX Spectrum+3 disk |  Hostages | 1990 | Infogrames Interactive, Inc. 329720 |
| Sinclair ZX Spectrum+3 disk | Hotshot | 1988 | Prism Leisure Corp. plc UK 014293 |
| Sinclair ZX Spectrum+3 disk | Hounds of Hell | 199? | Adventure Workshop, The |
| Sinclair ZX Spectrum+3 disk | House Out of Town | 199? | Adventure Workshop, The |
| Sinclair ZX Spectrum+3 disk | Human Killing Machine | 1988 | US Gold, Ltd. Birmingham, England 13442 |
| Sinclair ZX Spectrum+3 disk | I Dare You | 199? | Adventure Workshop, The |
| Sinclair ZX Spectrum+3 disk | I Need Speed Hb | 2009 | CEZ Games Studio Computer EmuZone |
| Sinclair ZX Spectrum+3 disk | Ice-Breaker | 1990 | Topo Soft. Spain |
| Sinclair ZX Spectrum+3 disk | Identify Europe | 1987 | Kosmos Soft., Ltd. |
| Sinclair ZX Spectrum+3 disk | Ikari Warriors | 1988 | Elite Systems, Ltd. |
| Sinclair ZX Spectrum+3 disk | Impact | 1992 | Zenobi Soft. |
| Sinclair ZX Spectrum+3 disk |  Impossamole | 1990 | Erbe Soft. Spain |
| Sinclair ZX Spectrum+3 disk | Impossamole | 1990 | Gremlin Graphics Soft., Ltd. 013658 |
| Sinclair ZX Spectrum+3 disk | Indiana Jones y la Ultima Cruzada | 1989 | Erbe Soft. Spain |
| Sinclair ZX Spectrum+3 disk | Infiltrado 2 - Return To Reactor Hb | 2004 | OCTOCOM |
| Sinclair ZX Spectrum+3 disk | Ingrid's Back | 1988 | Level 9 Computing |
| Sinclair ZX Spectrum+3 disk |  International 5 A Side Football Tape Master Disk | 1992 | Zeppelin Games |
| Sinclair ZX Spectrum+3 disk | International Karate | 1985 | System 3 Soft., Ltd. |
| Sinclair ZX Spectrum+3 disk | International Tennis Master Disk | 1992 | Zeppelin Games |
| Sinclair ZX Spectrum+3 disk | Into the Eagle's Nest | 1987 | Pandora Soft. |
| Sinclair ZX Spectrum+3 disk | Iron Lord | 1989 | UBI Soft Creteil, France 307211 |
| Sinclair ZX Spectrum+3 disk | Island of Chaos | 199? | Adventure Workshop, The |
| Sinclair ZX Spectrum+3 disk | Isotopia Construction Set Hb | 2007 | OCTOCOM |
| Sinclair ZX Spectrum+3 disk | Italia '90 - World Cup Soccer | 1989 | Virgin Games, Ltd. UK 013715 |
| Sinclair ZX Spectrum+3 disk | Italia 1990 | 1990 | Erbe Soft. Spain |
| Sinclair ZX Spectrum+3 disk | Ivan 'Ironman' Stewart's Super Off Road | 1990 | Virgin Games, Ltd. UK 013715 |
| Sinclair ZX Spectrum+3 disk | Jabato | 1989 | Aventuras AD, S.A. Spain |
| Sinclair ZX Spectrum+3 disk | Jack the Ripper | 1987 | CRL Group PLC London, England |
| Sinclair ZX Spectrum+3 disk | Jahangir Khan's World Championship Squash | 1991 | Krisalis Soft., Ltd. |
| Sinclair ZX Spectrum+3 disk | Janosik Hb | 2013 | Unknown |
| Sinclair ZX Spectrum+3 disk | Jason of the Argonauts | 199? | Adventure Workshop, The |
| Sinclair ZX Spectrum+3 disk | Jenny's Big Disk Vol. 1 | 1991 | Zenobi Soft. |
| Sinclair ZX Spectrum+3 disk | Jenny's Big Disk Vol. 2 | 1990 | Zenobi Soft. |
| Sinclair ZX Spectrum+3 disk | Jenny's Next Big Disk Vol. 1 | 1991 | Zenobi Soft. |
| Sinclair ZX Spectrum+3 disk | Jenny's Next Big Disk Vol. 2 | 1992 | Zenobi Soft. |
| Sinclair ZX Spectrum+3 disk | Jester Quest | 1988 | Zenobi Soft. |
| Sinclair ZX Spectrum+3 disk | Jet Bike Simulator | 1989 | MCM Soft. Spain |
| Sinclair ZX Spectrum+3 disk | Jet Set Willy 128K Hb | 200? | Elliott, John |
| Sinclair ZX Spectrum+3 disk | Jewels of Darkness | 1986 | Rainbird Soft. UK 012439 |
| Sinclair ZX Spectrum+3 disk | Jinxter Model 103035 | 1987 | Rainbird Soft. UK 012439 |
