.NET Game Engines for 2D Games

While checking out the many available 2D Game Engines for creating the SchnappCol Colonization like game project, I found the following interesting engines upfront.

Since I’m absolutely new to this topic, this was the first step in doing some research:

XNA => http://msdn.microsoft.com/en-us/library/bb203894.aspx

MonoGame  => http://www.monogame.net/

SLIM DX => http://slimdx.org/

SDL.NET => http://cs-sdl.sourceforge.net/

Torque 2D => http://www.garagegames.com/products/torque-2d

Example starting with MonoGame:

http://blogs.msdn.com/b/tarawalker/archive/2012/12/04/windows-8-game-development-using-c-xna-and-monogame-3-0-building-a-shooter-game-walkthrough-part-1-overview-installation-monogame-3-0-project-creation.aspx