The Jovian fleet is invading. As commander of the starship Endever, destroy every Jovian warship before they wipe out all United Planet bases. Everything happens in real time.
| 1 | Damage report |
| 2 | Hyperdrive — enter column, row (0-7) |
| 3 | Long range scan |
| 4 | Deflectors — toggle shields UP/DOWN |
| 5 | Masers — enter angle 0-360 |
| 6 | Triton missiles — enter angle 0-360 |
| 7 | Self-destruct — confirm code: 123 |
| Arrows | Move ship (works during any command) |
| \ (CLEAR) | Cancel current command |
Fly onto a base with shields DOWN to fully repair, refuel, and rearm.
| GREEN | No enemies in quadrant |
| YELLOW | Jovians elsewhere in galaxy |
| RED | Jovians in this quadrant |
| SOS | A base is under attack — warp there fast |
PRESS ANY KEY TO BEGIN