Depth Charge

According to AtariMania, Planned as a pack-in cassette title for Amiga’s never released Power Module peripheral and described as ‘the first machine-interactive video game’, offering head-to-head play, with one player the submarine commander and the other the destroyer captain.

Dragon Defender

Dragon Defender is a 1984 action game for the Atari 2600, published by Ariola. In this game, players control a dragon as it battles against waves of enemies that appear from the right side of the screen. These enemies include ball-like creatures that, while not firing projectiles, can destroy the player’s dragon upon collision. Additionally, … Read more

Combat Two

This game was planned to be the sequel to Combat, but never got released.

Astrowar (USA)

In “Astrowar” for the Atari 2600, the player’s goal is to strike down a variety of cosmic entities, including falling stars, unidentified spacecraft, spinning bombs, and space monsters, while avoiding being hit. The game’s pace accelerates, offering increased challenge as the player’s score rises. You can find the European version here.

Aquaventure

According to AtariMania, Aquaventure was never mentioned in any Atari communication nor does it show up on any internal part lists. The Atari 2600 game seems to be complete, but was never released for unknown reasons.

Astrowar (Europe)

In “Astrowar” for the Atari 2600, the objective is to target and destroy various celestial objects such as descending stars, mysterious spaceships, rotating bombs, and extraterrestrial creatures, all while evading incoming attacks. As the player’s score increases, the game’s speed intensifies, adding to the difficulty. You can find the NTSC version here.