Another possible solution: take a look at Soomla and see if it meets your needs.
Virtual Currency platforms
Members - Reputation: 120
Posted 05 May 2014 - 12:08 PM
Hey all, I work for GameSparks (important to point that out so forgive me if this is self-promotional) ... GameSparks is a middleware platform that integrates with many of the main payment systems (including stores) and provides a full virtual currency management solution for a game. Its all pretty easy to set up. You can see more on www.gamesparks.com or you can register for free here: https://portal.gamesparks.net
There is documentation explaining how to manage currencies in the support area.
Members - Reputation: 144
Posted 16 June 2014 - 09:39 AM
What do you think about this guys? http://pspcore.ismachine.net/im/sandbox.jsf
I touched them. As I understand they concentrated in payment business, but could give me what I am looking for very cheap citing it with simplness of setup process.
Edited by HydraliskD, 16 June 2014 - 09:40 AM.