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Contents 1 Apple II 2 Atari 2600 3 Atari 5200 & 400/800/XL/XE 4 Commodore 64 5 IBM PC 6 NES

[edit] Apple II

Developed by Atarisoft in 1983.

[edit] Atari 2600

Developed by Atari in 1984. Considered surprisingly accurate. Later re-released as Defender II.

box

American box

European box

[edit] Atari 5200 & 400/800/XL/XE

Developed by Atari in 1984. As was typical for these two systems, the 5200 version was visually identical to the Atari home computer versions. This version was ultimately never released. A prototype version of the ROM was leaked to the public.

[edit] Commodore 64

Developed by Atarisoft in 1985. This version appears to be an unaltered version of an unofficial conversion of Defender known as Guardian.

[edit] IBM PC

Developed by Atarisoft in 1983.

[edit] NES

Developed by HAL. Released in Japan as Stargate in September, 1987. Released in the U.S. as Defender II in July, 1988.

screen

Famicom box

NES box