Dropzone is a horizontally scrolling shooter developed by Archer Maclean (under the name Arena Graphics) for Atari 8-bit computers and published in 1984 by U.S. Gold. It was ported to the Commodore 64, and later released for the Nintendo Entertainment System, Game Boy, Game Gear, and Game Boy Color. Ports for Master System and Sega Genesis were also announced, but never released.^[2][3]

Maclean's first commercial game, Dropzone is similar in gameplay and style to the arcade game Defender and borrows many elements,^[4][1] including the same style of font, aliens, and title screen.^[5][6]

On the surface of Jupiter's moon, Io, a human scientific research base is under attack by aliens. The player dons a jetpack armed with a laser, a cloaking device and three smart bombs, to rescue the scientists and return them to the base.

The gameplay is in the style of Williams Electronics' Defender, with some influences from Scramble and Robotron: 2084.^[4] Players control the hero trying to rescue the scientists on a horizontally-scrolling game field.^[5] Players must elude or engage various aliens—some slow, others faster—and return the scientists to the base's eponymous dropzone. The aliens capture scientists walking along the ground. The player must shoot the enemy aliens and catch the falling scientists. Sometimes the aliens will carry lethal androids instead, which must be avoided.^[5]

There are 99 levels of gameplay, each increasingly difficult. After level 99, the levels repeat starting with level 95.

Maclean purchased an Atari 800 as soon as they were officially launched in the UK in 1981 and started writing what would eventually evolve into Dropzone. Maclean converted the game to the Commodore 64 himself:^[4]

The Atari 8-bit version received overwhelmingly good reviews. A reviewer for Computer and Video Games in a May 1985 review said that Dropzone was one of the best Atari games and Atari owners could not afford to miss this game.^[8] Personal Computer World reviewer agreed with this notion, who also praised the game's graphics and sound.^[9]

The Commodore 64 version of the game was awarded a gold medal in issue 3 of Zzap!64 magazine, with an overall rating of 95%.^[10]

The sequel, Super Dropzone, adds new weapon types and end-level bosses. It was released for the Super Nintendo Entertainment System (titled Super Dropzone on all packaging, but only Dropzone on the title screen), Game Boy Advance, and PlayStation. Only the Game Boy Advance version saw a North American release; the others were European exclusives.

A fully playable port of the C64 version can be found in Windows, PlayStation, and Dreamcast versions of Jimmy White's 2: Cueball, also by Archer Maclean.