| Title | System | Year | |
|---|---|---|---|
| Archive.org | Stargate | Atari 400/800 | 1984 |
| Archive.org | Stargate | C64 | 1985 |
| RetroGames.cz | Defender II (Stargate) | PC | 1981 |
| XTC Abandonware | Stargate | PC | 1983 |
| Lostgames Abandonware | Stargate | PC | 1985 |
| RetroGames.cz | Defender II (Stargate) | Atari 2600 | 1981 |
| Archive.org | Stargate | Atari 400/800 | 1984 |
| RetroGames.cz | Defender II (Stargate) | NES | 1981 |
| Archive.org | Stargate | Apple II |
| Title | Genre | Company | Year |
|---|---|---|---|
| Defender, Centipede,Stargate, Ms Pacman | unknown | unknown | |
| Defender | Action | Williams Electronics | 1980 |
| Defender of the Crown | Strategy | Cinemaware | 1987 |
| Defender 2000 | unknown | unknown | |
| Revenge of Defender | Action | Epyx | 1988 |
| Fleet Defender | Simulation | 1994 | |
| Starbase Defender | Action | Nathan Lamont | 2004 |
| Centurion - Defender of Rome | Strategy | Electronic Arts | 1990 |
| Jurassic Park III: Dino Defender | Action | Knowledge Adventure | 2001 |
| Arkanoid II Revenge of Doh & Defender of The Crown & Immortal, The | unknown | unknown |