What are the platforms for creating 2D games?

Question

C++ / C#

As an experiment and just self-learning, I would like to try to write a simple 2D platformer. It is unlikely that I will delve into its development, but just to try what and how, I'm interested.
Recommend on what all this can be built on, preferably in C #, and, if not difficult, materials on this case.
PS You can have ready-made engines.

Answer 1

unity3D
unity3d.com/learn/tutorials/modules
It's 3d, but that's not a problem, just fix the camera in one position. If it's just for self-learning purposes, this is the best option.

Answer 2

Microsoft XNA
Not a bad C# wrapper over Direct-X and as a result only Windows and XBOX. Unlike Unity 3D, there is normal 2D support
msdn.microsoft.com/en-us/aa937791.aspx
xna.gamedev.ru
www.xnadev.ru/news.php

Answer 3

The first two without any programming at all
Game maker - Game Maker Language (GML);
Stencyl - www.stencyl.com
Scirra - Construct 2 - https://www.scirra.com/
Game maker studio - www.yoyogames.com/studio