The virtual world currency inside the Entropia Universe is known as "Project Entropia Dollars" (PED). PEDs are directly linked to the US dollar at 10 PED to 1 USD. Every PED you earn inside Entropia Universe can be transferred from your avatars PED card to your bank account as real cash, and you may deposit real cash to be used as PED.
Imagine yourself simply exchanging any foreign currency in the real world to your local currency, PED exchanges the exact same way.
When you create your avatar inside Entropia Universe you will need PED on your account to purchase virtual goods to fund your adventures. Your account will be treated with the utmost security, providing a safe environment for investments from $20 to $2,000,000.