Perhaps notable for a valiant effort at real-time, wireframe 3-D graphics in
(Tandy 1000) BASIC, Quasar is a first-person space shooter taking place
across multiple quadrants of an unnamed galactic sector. Your fighter is
equipped with limited energy stores, and a double laser (which depletes said
energy). You start off in a planetary sector populated by waves of hostiles,
which come in two chief variants: yellow and red; both take pleasure in
ramming you, with bad results for your continuing existence.

Destroying the red craft increases your energy however, while picking off the
yellows engages your warp drive. In this mode, zapping a red will launch you
into a stargate: this abstract geometric zone will lead you to another
quadrant, depending on your warp factor – it may again contain a planet, or an
empty void patrolled by enemy saucers. It may also be occupied by a black hole
(where your discomfort will be short-lived, but so will your game).

Quasar