Zone Warrior

Zone Warrior is a three-dimensional space flight simulator/shoot-em-up game, originally published by Casady & Greene under the name ZOA (for Zone of Avoidance). The player plays as a lone defender of a remote space station under attack by aliens. It was originally published for the classic (pre-OS X) Mac OS running on Apple's personal computer, and later ported to the iPhone by original author Julian James.

The Macintosh Bible Guide to Games praised the "remarkable" level of detail to its graphics.

A sequel, Zone Warrior II, was also produced for OS X.

In the iOS version for the iPhone, the player once again plays as a lone defender of a remote space station under attack by aliens. Gameplay involves shooting aliens, and at the end of each level you are required to dock with your mothership. IGN praised the graphics and controls, comparing it to classic game Asteroids, finding the early levels easy but the later very challenging. Touch Arcade called it "an enjoyable shooter", comparing it to Star Raiders and again Asteroids. Pocket Gamer also praised it, awarding the game its silver award rating, despite finding the controls challenging.

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Wikipedia