Cloud storage of game state

A method for managing application data for a plurality of applications, the method comprising:

• on a server, storing game data in at least one slot, the slot including slot version data;
• receiving a request to update the game data and a corresponding action, the request including request version data;
• determining whether the request to update is authorized based on a comparison of the slot version data and the request version data;
• and
• updating the game data based on a result of the determining, wherein the method is performed on a processor.

A computer program embedded in a non-transitory computer-readable storage medium, when executed by one or more processors, for managing application data for a plurality of applications, the computer program comprising:

• program instructions for providing a database on a server, the database being structured to store data in a plurality of slots, each slot having a slot version and being associated with an application, wherein each application is associated with one or more slots;
• program instructions for providing an Application Programming Interface (API) to store and retrieve application data in the database, wherein each application accesses slots that are associated with the each application;
• program instructions for determining if a database operation request received via the API for a requested slot is authorized, the database operation request including a request version, the database operation request being authorized based on the request version and the slot version of the requested slot;
• and
• program instructions for enabling the database operation request when the database operation request is authorized.