Pyrosaurus is an asynchronous strategy and creature-management game centered around customizing fire-breathing dinosaurs for automated battle. The game allows players to construct custom dinosaurs by spending points on physical attributes—such as body mass, limb setups, and coloration—as well as combat capabilities and basic behavioral logic. Rather than managing battles in real time, combat is entirely asynchronous: players configure their creatures' AI scripts and submit their setups to a central server. The server resolves the match outcomes in the background and returns a graphical playback displaying the calculated battle results.