Tower Defense Alien War by Webgameapp

Deploy strategic defenses along alien invasion routes to prevent extraterrestrial forces from breaching your base. This tower placement and upgrade mechanic requires careful resource management and anticipation of varied enemy types advancing through multiple waves. Players must adapt their layout to withstand increasingly complex alien assaults and survive until reinforcements arrive. Key Features • Tower upgrade resource system • Strategic placement mechanics • Progressive enemy wave difficulty • Base defense reinforcement phases • Sci-fi alien invasion theme