 Inspired by the Japanese game "Nectaris" for the PC Engine, "Battle Isle" spawned numerous add-ons, sequels (most notable are "Battle Isle 2" from 1993 and "Battle Isle 3" from 1995) and imitations.Of those among the most notable is Blue Byte's own "" from 1993, which moves the science fictionish climate of "Battle Isle" into the times of First World War.Others include the open source projects of "Crimson Fields" and "Advanced Strategic Command".