I am the developer and admin of the successful "double your coins" game "cryptos2". This was the main thread: https://bitcointalk.org/index.php?topic=1042089.0

+100 BTC were invested in less than 2 weeks with aproximately 5 BTC total profit from fees (5%) (almost no promotion). If you make a good marketing, you can easly increase these numbers!

You can get the script exclusively for 1 month, check the details of the auction:
https://bitcointalk.org/index.php?topic=1229294.0

It is fully automated (deposits and payments) and customizable: accepted coins, min and max deposit, multiplier (x1.2, x1.5, x2), service fee, affiliates fee.

Or if you are interested into buying a copy of the script after the 1 month period for 0.5 BTC (only the script) or 1 BTC (script + server fully working), then PM me for details.

Post your bids at the thread of the auction, not here. If you want to buy a copy after the exclusive period, PM me: multicryptos.