Alien War Home Alien War 0.0 / 5 ( 0 votes ) Your Rating? Discover Alien War – Play Free Now on Game24H! Alien War - Defend your base from aliens and upgrade your skills. You need to defend your land from alien attacks. Use guns and bombs to smash aliens. Collect coins to buy new upgrades after waves. Play this game at RegionGame with fun and stop the alien invasion. Categories in which Alien War is included: Adventure