but video game players have handled this kind of transactions for a long time on MMOG or video game consoles with the World Of Warcraft and Grand Theft Auto franchises being the most visible examples.
Eve Online has a far more robust and complex in game economy than either WOW or GTA. Here is why:
95% of the items for sale on the market are manufactured by players which means the market and gameplay are interconnected to a far higher degree than any other game I have seen.
There is Station trading that utilizes the same types of graphs and logic as regular markets.
There is market PVP.