That is the hook behind many browser Granny games: objects are never just things to collect. Objects Explain the Rules Before the Game DoesGood horror games do not need to stop for constant tutorial boxes. Game designers often describe this quality as affordance: an object gives the player an idea of how it can be used. Ordinary Things, Expensive MistakesGranny-style horror makes everyday objects scary by attaching consequences to them. Suddenly the house is full of useful objects, and touching any of them can be the worst decision of the run.