Detached economy in online game

A server system for hosting a first video game and a second video game that is an autonomous game module within the first video game for play by a user on a client device, comprising:

• a memory for storing instructions for executing the first video game and instructions for executing the second video game, the first video game having a first currency enabling the user to achieve advancement in the first video game;
• and
• a processor operable to execute the instructions for the first video game and the instructions for the second video game, wherein during execution of the instructions for the first video game and the instructions for the second video game the processor is operable to:
• initiate the first video game having the first currency;
• initiate the second video game, the second video game enables the user to select one or more assets from the first video game for use in the second video game, the second video game limiting a number of assets the user is able to select such that when selected, the one or more assets are insufficient to complete the second video game, wherein the second video game has a second currency enabling the user to achieve advancement in the second video game, and wherein the first currency is prevented from enabling the user to achieve the advancement in the second video game and the second currency is prevented from enabling the user to achieve the advancement in the first video game;
• detect completion of the second video game by the user and select one or more reward assets for use in the first video game, the one or more reward assets are different from the one or more assets selected from the first video game by the user for use in the second video game;
• and
• transfer the one or more reward assets to the first video game for the user to use to achieve the advancement in the first video game.

A non-transitory computer-readable storage medium storing a computer program executable by a processor-based system, comprising:

• program instructions for executing a first video game for play by a user of a client device, the first video game having a first currency enabling the user to achieve advancement in the first video game;
• program instructions for executing a second video game that an autonomous game module within the first video game, the second video game enables the user to select one or more assets from the first video game for use in the second video game, the second video game limiting a number of assets the user is able to select such that when selected, the one or more assets are insufficient to complete the second video game, wherein the second video game has a second currency enabling the user to achieve advancement in the second video game, and wherein the first currency is prevented from enabling the user to achieve the advancement in the second video game and the second currency is prevented from enabling the user to achieve the advancement in the first video game;
• program instructions for detecting completion of the second video game by the user and selecting one or more reward assets for use in the first video game, the one or more reward assets are different from the one or more assets selected from the first video game for use in the second video game;
• and
• program instructions for transferring the one or more reward assets to the first video game for the user to use to achieve the advancement in the first video game.