Tempest 4000 is a shoot 'em up video game. Players take a control of the Claw, a spacecraft that can shoot at enemies and obstructions. Levels take place on geometric prisms. The goal of the game is to survive each level by eliminating enemies as soon as possible and to achieve high scores for leaderboard positions. The game features one hundred levels and three game modes: standard, pure, and endurance. Source: Wikipedia, "[en.wikipedia.org/wiki/Tempest_4000 Tempest 4000]", available under the CC-BY-SA License.