Development of games/applications for mobile platforms. What is better to use for this?

Question

Mobile development

I want to create multi-platform games / applications (so that the changes in the code between platforms are as small as possible), mainly for mobile platforms. Well, just for experience and enjoyment. It is unlikely that I can write something serious.
Now I know a little C# (the most serious thing I wrote was a snake on Win Forms) and even less C++. If there was at least a device on WP8, I would write something on WPF, otherwise it’s not interesting.
Since I like C#, I'm leaning towards Unity3D, but maybe you can recommend something else interesting?
I know English enough to somehow read the material, referring to the translator from time to time, but it is still desirable to have something in Russian.

Answer 1

www.openfl.org
+
haxepunk.com
or
haxeflixel.com
For physics
napephys.com/index.html

Answer 2

Applications are easier to write in the language native to the platform. For apple it's objective-c, for android it's java. In the case of games - either units or marmalade. Everything else with low knowledge of c ++ / c # is better not to even look.

Answer 3

If 3D games, then Unity, if 2D games, then Corona SDK or Cocos2d-x or Marmalade (Quick).