http://www.dragons.tl/mediawiki-1.16.5/index.php/Soldier_Statuesou can get free Bitcoins from the Soldier Statues located throughout Dragon's Tale. The Bitcoins are real, and can be used to play games within Dragon's Tale, or can be withdrawn. Usually soldiers will give small gifts, between 1 and 3 Bitmills (1/1000 of a Bitcoin), but occasionally they'll give larger gifts: 10, 50, 500, or 5000 Bitmills (5 BTC) at once.
The game limits the gifts of course - you can't just drain one soldier dry - but there are no hard limits to the number of gifts that you can get.
Soldiers receive gifts from the Faucet, located behind the Palace, and they keep them in inventory, giving them out as asked. If a soldier contains multiple denominations of gifts, he will always offer the largest. Because of this, the more out-of-the way soldiers which are searched less often tend to accumulate more gifts, and more often have larger gifts than those located in the middle of town.