Primal Sands

Primal Sands is a game from Scriptwelder.

The game is a Top-Down View shooter, in which the player controls an astronaut who must defend his crashed spaceship from hostile alien life forms until he can repair it and escape this hellish planet. The only weapon the astronaut has is his MPTU (Multi-Purpose Tank Unit).

Trivia

 * The Crystal that would play a key role in Don't Escape 3, first appears in this game. Both games even feature a similar scene in which a person infected by the crystal coughs ups a piece of it.