Entropia Universe was created by Mind Ark, a Swedish software company with a banking licence.
Entropia is one of the most unique massive multiplayer games to exist in the world, being one of the only games to really fully incorporate a "Real Cash Economy". Unlike every game with just the ability to deposit and spend, Entropia give you the option to directly withdraw. The currency in game is fixed to the US dollar.
Entropia Universe is totally free to download and play and has a free elements to help players get started.
Every item has a base value (called its trade terminal value), ammo and tool maintenance costs real money. The loot you get in return has a real value too.
Hunters and miners can purchase their equipment from crafters, crafters get their resources to craft with from hunters and miners.
The people that normally link these people are the trader, willing to stand in busy areas buying and selling wares.
You have the ability to explore the many planets, own virtual property, craft many items and customise their colour and design.
Enjoyment can found just as equally as profit.
Entropia is even in the Guinness book of records for the sale of the most valuable virtual object, in 2010 Calypso was brought for $6,000,000 by SEE Digital Studios. Entropia also beat the same record previously in 2008 and 2004.