Earth Attack is an unlicensed game for the Atari 2600 that closely resembles the classic arcade game Defender.
In Earth Attack, players take control of a spaceship tasked with defending the Earth from waves of invading alien forces. The game features side-scrolling action with the player navigating the spaceship horizontally across the screen, shooting down alien ships while avoiding their attacks and obstacles.
While Earth Attack may not be an official reproduction of Defender, it offers a similar gameplay experience for fans of the classic arcade game who are looking to enjoy it on the Atari 2600 platform.