We discussed how to exchange or trade items with other players. The flow of the items in virtual world forms an economy system. It can be a simple economy system or a complex one depending on the virtual world design.
For example, a virtual world may let players farm together. The players plant the seeds items and harvest the product item, and sell it to the system. This virtual world does not allow any item exchange between players. The money they earn from the farming product can be spent on buying new clothes, new cars, or new houses. Those cars or houses are designed for the system to reclaim the money from the users. This is a simple economy system and the world focuses on giving the users fun in farming.
Take a look at a complex economy system. A virtual world may allow players to equip their avatars with weapons and armor. They can collect woods and rocks to create weapons themselves. They can exchange or trade items with other players. The...