HomeGamesArcadeGrid DefenderGames like Grid Defender Here are some great alternatives to Grid Defender by Fred Sauer : Invaders Mars Defender ★4.6 Space Swift: The Sky Defender ★4.3 Space Cadet Defender Invaders ★4.5 Falcon: Classic Space Invaders ★4.7 Defender ★4.3 Alien Swarm Pro ★4.2 Invaders Deluxe ★4.1 Galaxy Invaders: Space Shooter ★4.4 Galaxy Invader: Alien Shooting ★4.7 Alien Swarm ★4.2 Arcade Defender ★3.9 Space Defender Xtreme ★3.7 Invaders - Classic Shooter ★4.1 Galga Space Alien Invaders ★5.0 Sea Invaders - Alien shooter ★4.5 Alien Shooter: Galaxy Invaders ★4.3