Welcome to SoulXchange, the online soul-trading community. SoulXchange is a PBBG, and can loosely be described as a stock-market for souls. Here, you will put your soul up for sale. Each time you are purchased, you will receive a bit of income to help you with your primary mission - to become the wealthiest, most valuable soul. It will be simple enough to achieve this goal, as all you have to do is buy and sell other souls effectively.
That is, of course, if you can overcome the intelligence, skill, charisma, and conniving of your fellow players.
SoulXchange is free to play - the buy-in is, of course, your immortal soul.
Good luck. You'll need it.