| Title | System | Year | |
|---|---|---|---|
| XTC Abandonware | Project Neptune | PC | 1989 |
| Lostgames Abandonware | Project Neptune | PC | 1989 |
| Title | Genre | Company | Year |
|---|---|---|---|
| Project Neptune | unknown | unknown | |
| Operation Neptune | Educational | The Learning Company | 1995 |
| Project X | Action | Team 17 | 1995 |
| Wonder Project J | RPG | Enix | 1994 |
| Project Magellan | Action | Plaid World Software | 1998 |
| Project Firestart | Adventure | Electronic Arts | 1989 |
| Halley Project | Educational | Mindscape Inc | 1986 |
| Abacus Project | Educational | Peter Tax | 1992 |
| The Journeyman Project 2 | Adventure | Presto Studios | 1995 |
| Project Nomad | Action | GameTek | 1993 |
| Journeyman Project, The | Adventure | Presto Studios | 1993 |
| Project Nomads | Strategy | Virtual Programming/Radon Labs | 2005 |
| Project Battlefield | Action | Mirage Media | 1995 |
| Project-X II - The O Zone | unknown | Compass Software | 1986 |
| Project Space Station | Simulation | Avantage | 1987 |
| Thief: The Dark Project | Action | Looking Glass Studios | 1998 |
| Project Stealth Fighter | Simulation | MicroProse Software | 1987 |
| MindRover: The Europa Project | Strategy | alt. Software | 2003 |
| Mission 2: Project Gibraltar | unknown | Mission Software | 1984 |
| Teenage Mutant Ninja Turtles III: The Manhattan Project | Action | Konami | 1991 |