| Aka: | stellar7, stellar7.dsk |
| Console: | Apple II |
| TV Standard: | Region Not Set |
| Release Date: | 1970-01-01 |
| Players: | 1 |
| Co-op: | No |
| ESRB: | Not Rated |
| Type: | Action, Shooter |
The player's tank, the Raven, has a front-facing cannon with an unlimited supply of bullets. The cannon can fire up to two shots at a time. The tank also has a cloaking device that, when triggered, would render it invisible to enemies for about a minute. Gauges on the right side of the screen indicate the amount of shields and power remaining. The tank starts with enough power to cloak twice, and power slowly trickles away as the time passes. The game ends when either shields or power runs out.
Each of the seven levels represents a different star system (hence the title). The player's objective is to get to the last level and defeat the enemy boss, Gir Draxon. Each level is depicted as a nearly featureless plane dotted by geometric obstacles—some indestructible and most not—and various enemies. After the player destroys a certain number of enemies, a warp link will appear that provides a gateway to the next level.
Special power-ups can be accessed by pressing the tab key to toggle between the different icons at the bottom left of the screen and then pushing enter, or simply by pushing the letter key corresponding to the desired icon. The icon for the chosen item will turn purple while activated. Each power-up is represented by a certain symbol and can be used up to three times throughout the game, depending on the difficulty setting.
