Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Yars'' Revenge is a video game developed for the Atari 2600 in 1981. It was created by Howard Scott Warshaw, who also wrote the 2600 titles Raiders of the Lost Ark and the much derided E.T. the Extra-Terrestrial. Yars'' Revenge was Atari''s best selling original title for the 2600. The game began as a licensed port of the Cinematronics arcade game Star Castle. In the original game, a powerful cannon is protected by three layers of counter-rotating shields. The player must shoot holes in these shields in order to destroy the cannon inside. But once these holes are made, the cannon can also shoot out at the player. If the outermost layer is completely destroyed, new layers of shields are grown. Harassing the player are two free roaming torpedoes that hunt out the player''s ship.