This was the problem with early web based MMOs. Unity has a caching license now that adds a bigger cache (http://docs.unity3d.com/Documentation/ScriptReference

This was the problem with early web based MMOs. Unity has a caching license now that adds a bigger cache (http://docs.unity3d.com/Documentation/ScriptReference/Caching.Authorize.html http://docs.unity3d.com/Documentation/ScriptReference/Cachin...) that was developed for Cartoon Network but they haven't made it part of the main release due to security and it also is a revenue generator for them I guess. I'd love to see this launch now they have some competition. Flash had something similar but was available to everyone with up to unlimited space by user setting (flash cookies are stored there so this is part of the security problem).