| Title | System | Year | |
|---|---|---|---|
| XTC Abandonware | X-COM - UFO Defense \(DOS\) | PC | 1994 |
| RetroGames.cz | UFO: Enemy Unknown | PC | 1994 |
| A Force For Good | UFO: Enemy Unknown | PC | 1994 |
| DJ Old Games | X-COM: UFO Defense | unknown | 1994 |
| Games Nostalgia | X-COM: UFO Defense | PC | 1993 |
| Just Games Retro | X-COM: UFO Defense | PC | |
| Free Game Empire | UFO: Enemy Unknown | PC | |
| XTC Abandonware | X-Com - UFO Defense \(Win\) | PC | 1993 |
| Lostgames Abandonware | UFO: Enemy Unknown | PC | 1994 |
| The Good Old Days | UFO: Enemy Unknown | PC | 1994 |
| Title | Genre | Company | Year |
|---|---|---|---|
| Bio-Defense | unknown | Tymac | 1984 |
| Defense | unknown | unknown | |
| Navcom 6 - The Persian Gulf Defense | Simulation | Cosmi Corporation | 1988 |