Described herein are systems and methods for providing a computer-generated virtual environment that is at least partially supported by user contributed computing devices. In an embodiment, an indication is received, from each of a plurality of user contributed computing devices, that the computing device is available to contribute at least a portion of its computational resources to support the virtual environment. At least some of the computing devices, from which the indications are received, are assigned computational tasks that are used to support the virtual environment. Credits are provide to users associated with the computing devices that are assigned and perform the assigned computational tasks. A record of the credits provided to users is maintained. Users that interact with the virtual environment can use their credits to pay for computational tasks performed to support the users' interactions with the virtual environment and/or to pay for virtual goods and/or virtual services.