Astrorock is a 1996 personal computer game for systems with Windows 95 and newer.[2] In the year 9999, the bash of the millennium is about to be invaded by evil mutant aliens.[2] Zep Nepher (a possible pop culture reference to Led Zeppelin) needs the player's hope to restore rock and roll music to the interstellar vastness.[2] Bad guys will have to be defeated in the far off Bee-Gee cluster (a pop culture reference to the classic band, the Bee Gees).[2] The player gets to use an awesome display of fire power.[2] While its beginning levels are a modern adaptation of Asteroids, the later levels deviate from this concept considerably.