android - Best way to create multi-platform mobile games? -

I know that there are topics on this, but, I just want to get a straightforward answer. I'm interested in making mobile games (and I'm planning to put them in a lot of time) except this point it's only at this point of mine.

The point I am getting is: I read online everywhere to create multi-platform mobile games and I know mostly about SDK and other devices like Mossinak, Corona, etc. ... (I am also looking for 'free solution as possible')

** I mean by SDK 'Write once' mentality 'plays everywhere where I will write an app which will be the most Will work on more platform **

What is the best way and to create a mobile multi-platform game? Is it appropriate to use any of these SDKs or all honesty, is it really recommended to create games separately on the original SDKs (like iOS and Android and Windows Phone) of each platform? Should I waste time trying to find a good multi-platform game SDK or should I build each platform separately for my platform? What do most people / companies do that make games for major platforms, such as angry birds, temple run etc.? If it is recommended that 'Always play once, use the SDK', then in all sincerity, which is a perfect solution (2D gaming)

Thank you everyone for input and help We do.

I'm actually seeing a lot on this in the past few weeks. There are some options:

- Liberty: Now free for the base mobile product. It seems that you use the Unity Editor, there you prepare your game and then it generates code based on the platform. You must write code for game objects in the Editor using C # or Javascript.

- Cocos 2D-X: Free Game Engine, It seems that you can write code in C ++ and since then all the platforms can port it in C ++ code Are able to create.

I'm sure there is more, but I was between those two and Spritekit because I do primarily IOS, so I decided to go with the Spritekit (some really good features You can see if you are an apple developer, plus great documents and very straight forward). I am still like unity, but I am doing all the artwork with myself and unity seemed like it would show more of the quality of poor art than the 2D engine.

There are some very good unity tutorials that you can look for on YouTube to look for it. I think cross platforming was my biggest concern, I am deeply enlightened and see if It was fit.