Gaming system for modular toys

An interactive computer game is described which works in conjunction with a number of physical modules that a user can connect together in different ways to form a coherent physical whole object. The game receives data from the object via a wireless link, the data identifying at least which modules form part of the object and updates game play based on the data received. At some point within the game play, the game presents an objective or goal to the user which the user can only achieve by interacting with the physical object formed from the modules. In an embodiment, this interaction comprises re-arranging the modules or swapping modules to form an object with a different visual appearance, moving all or part of the object and/or interacting with a sensor on a module in the object. The game may receive further data from the object during the user interaction.