Rat and mouse! Cat and dog! It's all about animal simulator! Rat Simulator is here. It's a survival simulator. You play as a small rat which want to conquer the whole world! Steal food, break stuff, save rat, kill human - it's all about your rat dream! What a tasty cheese? Break the vase! Punish cat! It's not only mouse or squirrel dreams! 2 modes - collect food and destroy items! Become invisible to human! Spread the disease! One of the best genre of mouse games! Life simulator of a small rat have just began!... survival simulator! Squirrel simulator?! No! Mouse simulator?!! No again! Maybe people simulator? No! Rat Simulator! Hooray!