In Space War TD, players are tasked with defending Earth from alien invaders seeking the energy cube on asteroid Eris, the planet's last hope. Reinforce your defenses with upgrades, weapons, and strategic attributes to combat the increasingly powerful alien forces. The game offers a simple yet addictive experience where every choice matters in the battle to save humanity.

Engage in free play mode, strategically place cannons and special weapons to protect your bunker, and upgrade your defenses to withstand the alien onslaught. Customize your cannons, reinforce your bunker, and install special weapons to defend more effectively. Compete globally for high scores and optimize your attack strategy through achievement options.