C#/XNA Game Development

For anyone interested in using XNA to create games for Windows PC, Windows Phone, or Xbox 360, I thought I would make a list of available game engines and frameworks. All listed engines are 3D game engines unless otherwise specified. If you find any other engines that are worth mentioning that I missed please shoot me a PM and I'll put it up here.

XNA 4.0 compatible, Free-to-use engines and frameworks
QuickStart Engine, uses JigLibX Physics Engine, last updated Jan. 2012, no level editor or animation implemented yet.
Axiom3d, partial C#/XNA port of Ogre3D, last updated Aug. 2011, no level editor
Engine Nine, last updated Apr. 2011
FlatRedBall, 2.5D engine, last updated Nov. 2011
DEngine, 2D engine, last updated Mar. 2011
Nuclex Framework, Framework with many helpful components like GUI, compression, particle system, and more. Last updated March 2011.
Mercury Particle Engine, a particle engine (looks to be 2D-only, but I haven't used it so I may be wrong about that).

XNA 4.0, not free
Sunburn, $150 - $1000
Visual3D Price unlisted, 30-day free trial, last updated sometime 2010

XNA 3.1 Game engines (older, can only be used for Windows PC games. Most of these engines are no longer supported)

XNA 3.1, free
Oops Physics Framework, not a complete engine, but includes basic things like a physics engine, terrain, rendering, and input.
Ox Game Engine, port of Buttermilk3D engine, last updated Apr. 2010
Tomahawk

XNA 3.1, not free
TorqueX, $99, no longer supported, may not be available for DL.


Getting Started programming with XNA 4.0 (all downloads and installs are free):
Download Visual Studio 2010 C# Express
Download XNA 4.0

If you just want to try packaged demos from these engines without installing Visual Studio you'll at least need the .NET 4.0 framework if you don't have it (note: you'll still need to install XNA 4.0):
http://www.microsoft.com/download/en/details.aspx?id=17851


Some screenshots:
Be aware that some screenshots are from actual games, those will generally look better than an engine demo due to having paid artists creating content for the game itself.

Quickstart Engine




Axiom3d


FlatRedBall, 2.5D engine, (Screenshot from PC game Trashman, created using FlatRedBall)


Sunburn (commercial engine, $150-$1000)


Visual3D (commercial engine, price unlisted, 30 day free trial)

Edited by lordikon - 1/6/12 at 8:00am