Caverns of Mars

Caverns of Mars
Cartridge release
Publisher(s)Atari Program Exchange
Atari, Inc.
Designer(s)Greg Christensen
Programmer(s)Greg Christensen
Richard Watts
Platform(s)Atari 8-bit
ReleaseWinter 1981: APX
April 1982: Atari (disk)
1983: Atari (cartridge)
Genre(s)Scrolling shooter
Mode(s)Single-player

Caverns of Mars is a vertically scrolling shooter for Atari 8-bit computers written by Greg Christensen, then a high school senior, with some features later added by Richard Watts. It was published by the Atari Program Exchange in 1981. Caverns of Mars became the best selling Atari Program Exchange software of all-time and was moved into Atari, Inc.'s official product line, first on diskette in 1982, then on cartridge in 1983.

In Caverns of Mars, the player descends into a cave and at the end must retrace their steps back to the top. Christensen wrote two less successful follow-ups: Phobos, which is an enhanced version of the original, and Mars Mission II, which scrolls horizontally and is similar to the arcade video game Scramble.