Loop Defense: Acquisition Protocol

Tower defense on PC

Loop Defense: Acquisition Protocol is a single-player sci-fi tower defense game. You build walls to shape enemy routes, then assemble defenses to stop attacks across a star map.

Routes and resources

Your walls affect where enemies move, while your defenses need to fit within limited loadouts. You also manage energy and research as you prepare to face armored, flying, carrier, and wall-breaker units.