Considered an unofficial sequel to the studio's earlier Raptor: Call of the Shadows,[2] it is a top-down vertically scrolling shooter set in outer space.

A space crime organization, known as the Alien Shogunate Xidus Armada, delivered a surprise attack to the Terran Fleet, destroying most of the Raptor fighters in the process.

"[2] In reviewing the Secret Missions version, Stuart Campbell noted the game was a "tough, well-balanced, no-nonsense "shmup" that you can devote the odd blissful, brainless half-hour to.

"[8] Gaming Entertainment Monthly assessed that their disappointment with DemonStar was due to high expectations "based on what Raptor offered in the past".

Richie Shoemaker of PC Zone stated "the viewing window is so tiny...you shouldn't have to switch resolution to enjoy a game".

The remastered DemonStar features new high resolution graphics, a frame rate of up to 120 fps, a Tate mode[jargon] for vertical monitors and a new soundtrack composed by the Danish sound artist Pfeffermouse.