I integrated a facebook like
button to my Android game. Can I offer in-game reward (e.g. gold coins) to the player if he presses the like
button?
I checked the Google Play Terms and such stuff, but we all know they are too general, and I don't know where else I can ask this. I know there are many Android developers here on stackoverflow.
I know that incentivizing the player for Google Play rating is prohibited, and it's the same with ad networks. But telling the user to like
my own game page on Facebook in exchange for free gold in the game is allowed, isn't it?
I don't think Google Play has anything against this, but if I recall correctly, Facebook itself is pretty strict about incentivizing Likes and Shares using rewards (in-game or otherwise). It won't get your app removed from the Play Store, but it might get your Facebook API access revoked instead.
I've seen so many people doing it that I seriously doubt you'll get in any sort of trouble over it, but keep it in mind.