I am open mind and I have helping indie game develops for andriod in the past. The most selling game I've help with indie is called ninja runner, this one I only done icons and button ui. ( 2d graphic ) Don't buy it... I think it is not so good game.. I have no idea because I haven't play it yet! Haha https://play.google.com/store/apps/details?id=com.Jan_Slegl.NinjaRunner For android, I have three game designer doc that are suitable, one of those are very suitable. If we want serious game development, then we can open that one of my Game designer doc. ( there 8!) For games engine, we will have to talk about it.. Until it is unity3d. ( most of my client use unity3d games engine. ( so far!)) Edit- Forgot to add that I would like to made games for every platform and I would like to listen your idea if your join our games team.