1. A virtual game system comprising: a computerized virtual item trading system for communicating with two or more virtual game servers, wherein the two or more virtual game servers provide two or more different virtual online games, and wherein the virtual item trading system is programmed to: translate attributes of virtual items from the two or more different virtual online games to a homogenous virtual object data format using a translation module, thereby creating indexes and tags around the attributes such that the virtual items from the two or more different virtual online games are searchable by the attributes, wherein the attributes include a type of virtual item; valuate, by the translation module, the virtual items from the two or more different virtual online games based on the relative interest in the virtual items in relation to other virtual items based on transaction histories of the virtual items; convert two or more virtual currencies associated with the two or more virtual online games, by the translation module, to a common virtual currency that is common to the two or more different virtual online games, based on demand for the two or more virtual currencies outside of the two or more virtual online games; store the attributes of the virtual items in the homogenous virtual object data format in a database; receive a search query initiated by activating an icon on a trading/exchange graphical user interface provided by downloading a client application to one or more client devices or provided by a client application residing at a game server platform wherein the one or more client devices are in communication with the game server platform, the graphical user interface providing search queries for exchange, sell, and valuation requests; in response to the search query, search the database for one or more virtual items that match the type of virtual item corresponding to the search query; return a list of available virtual items and their associated values filtered to meet the type of virtual item corresponding to the search query, wherein the list of available virtual items comprises items for exchange, sale, and valuation based on the respective search query; and execute transactions for the virtual items.