Drelbs is loosely inspired by the paper-based game played on a grid of dots, in which players draw lines alternately, with the intention of forming more squares than their opponent. The similarities end there, in Drelbs you represent the only member of the Drelb race who has not been imprisoned by the evil Trolloboars. Members of the Gorgolyte race and Trolloboar tanks are targeting you. A set of randomly-arranged lines are already in place, and contact with them pushes them in the direction of contact. Forming a complete square locks it into place, and it turns into either a monster (causing death on contact), a woman (resulting in bonus points on contact) or a barrier. They will randomly change into stairways, which can lead you into a bonus room.