| Publisher: | Synergistic Solar, Inc. |
| Platforms: | TRS-80 |
| Genre: | Space flight simulator, shoot 'em up |
| Modes: | Single-player video game, multiplayer video game |
Space Ace 21 is a video game published by Synergistic Solar, Inc.
Space Ace 21 is a game involving combat between two spaceships, played in either two or three dimensions.
Space Ace 21 is a game where players construct modular spacecraft from a set of modules and test the design in simulated realistic physics based 3d or 2d stop action combat
Ian Chadwick reviewed Space Ace 21 in Ares Magazine #13 and commented that "Space Ace 21 is highly recommended for the science fiction game buff tired of arcade shootouts and looking for a more realistic bit of fun."[1]