My game has only one virtual currency. It will be available as currency packs for in app purchases, for which I have found this in the docs: https://docs.gamesparks.net/tutorials/how-to-do-in-app-purchases

But the same currency will be rewarded for some actions inside the game. How do I give my players an arbitrary amount of virtual currency?

Eduardo its explained in this forum post. But I agree, it should be in the docs... http://www.pistonheads.com/classifieds/used-cars/porsche/boxster-981-12-current/porsche-boxster-pdk/3715123

Oops, pasted wrong link.. https://support.gamesparks.net/support/discussions/topics/1000060475

Sorry my iPad copy/paste is failing me, this is the right link https://support.gamesparks.net/support/discussions/topics/1000038536

Thank you! That's exactly what I'm doing now :)

Do you know any way to contribute to the docs? They're really poor at the moment and mmmhhh... wait!... are you buying a Porsche? :o

Docs are closed source, yeah they could do with more examples. I'll get a Porsche if my upcoming game titles makes enough to allow me to do so :p