Trog is an arcade game developed by Midway Games and released in 1990. In the game, players control one of four dinosaurs and must collect eggs onscreen while being pursued by cavemen called "trog" (named after the word troglodyte) The game supports up to four players at once.Trog features claymation graphics, advertised as "Playmation" by Midway. Creating the claymation graphics comprised a significant portion of the game's development costs.