This is very weak PC game published by GT Interactive in 1999. It seems the game was a little bit in unfinished status when it was published. You will fight against alien invader race called Brorak. There are six fighters in the game for your choice. The battles are always inside of huge metal spheres with stone asteroids within. Every sphere connects with hyperlinks each other. You can enter in the hyperlink via device constructed as triangle shape portal. Gravitation is absent.
Thanks for TheMadLynx (Old-Games.Ru) recorded this video.