PREMIUM GAME - No In-App Purchases in this game. Pay once, play forever! NOW as full EXTENDED EDITION version. This game won't let you down, Commander. 4. 5/5 "A Space Battle RTS Done Right" - Pocketmeta. Com. Battlevoid: Harbinger is a hard sci-fi space exploration game blending roguelike, turn-based, star map strategy, and real-time space battles.