"Unique units" in the free game C-evo are a handful of units each of which is produced by only a single nation. Because of the "Do It Yourself" nature of all units in C-evo apart from the nine pre-designed Special Units, and the fact that players have no control over the naming of their units, the concept is of much less significance in C-evo than in the Civ Series games that make considerable use of the idea.

Players with some computer proficiency can modify files to produce their own unique units.