- Stargate was also released as a table-top arcade game. In addition to its stand-alone release, the game would also be released in a "Multi-Williams" 8-in-1 arcade game.
- Stargate was released on the Nintendo Entertainment System (NES) under the name Defender II.
- In later years the game was included in the Midway Arcade Treasures collection, released for the Nintendo GameCube, PC, and the original Xbox. Before that PC users could find the game included in the 8-game pack Williams Arcade Classics.