Battle Tank is labelled as a demo game, that clones the arcade smash, Battlezone. In it, you drive a tank in a 3D wireframe world, trying to shoot tanks. It features the radar, and basically the same graphics, as the original arcade game (the game is meant to be run in monochrome). I think it is labelled as a demo as the speed of the game gets choppy as the shapes are rendered larger (and the high score table doesn't seem correct), but even so, it is a valiant effort.
Title: Battle Tank
Author: Kenneth Del Signore
Publisher: N/A
Released: ????
Requires: Color Computer 1/2/3, 32K RAM, tape or disk, joystick.