Xenocide is a scrolling shooter for the Apple IIGS written by Pangea Software and published by Micro Revelations in 1989.
Computer Gaming World called the plot of exterminating an entire alien race "reprehensible" and criticized the documentation for sounding like "fascist propaganda".
The reptilian humanoid aliens intend to devour the inhabitants of Talos IV, forcing the player to take the action of committing xenocide (the extermination of the entire species).
Levels consists of 3 differing modes of game play: driving a hovercraft (front-view), jetpack flying and scuba-dive swimming (side-view), and walking through a bio-lab (top-view).
The craft has a limited amount of fuel, and the player must find the docking port before running out to advance to the underground levels.
Now in a side-scrolling view, the player uses a jet-pack to fly through caves and caverns, searching throughout to find and collect 5 bombs.
A laser gun and grenades (ammunition limited by number of canisters collected the previous level) allow killing enemies or breaking through obstructions.
Attacking robot enemies must be eliminated and power-up capsules now provide new sets of weapons or abilities in the options menu.
Once the self-destruct sequence is activated (an alarm will sound), the player has just seconds to enter the teleporter before the moon explodes.
Xenocide was the first game published under the Pangea Software name,[5] programmed by Brian Greenstone with artwork by Dave Triplet.