Iron Helix is the name of an adventure game released in 1993 for the Windows, Mac, and the Sega CD. The human race is in the middle of a cold war with an alien race called the Thanatosians. A weapon known as "the Iron Helix", capable of destroying all life on a planet is aboard the Cerberus-class destroyer, the O'Brien. The player's objective is to board the O'Brien in order to somehow stop or destroy the ship before the Iron Helix is launched. The twist lies in the fact that the player controls a robot drone, incapable of offensive action.
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