List of Moddable Games?

Greg DAlessandro

Goal:
To initially create a level or two for my LD portfolio using existing game assets (So that I don't have to start from scratch: creating art assets, animations, mechanics, etc)
I will eventually create a level via Skyrim Creation Kit, a puzzle level via Portal, and a multiplayer level. But I'd like to start with a playable singleplayer level that isn't an FPS. (besides Skyrim)

Question:
Does anyone know of a list of 3D moddable games besides Unreal Tournament, Elder Scrolls, Half Life, Left 4 Dead, Portal, or Gears of War? I can't seem to find games that I can make levels for. (But please feel free to include FPS games, and 2D games for knowledge)

Thank you.

Eric Chadwick

Have you loaded up any game engines, and looked at all the content that comes with them? Unreal and Unity for example come with a ton of internally-created game demos, of all sorts. Assets, logic, etc. all included for modding. What of these have you evaluated so far? For example:
https://unity3d.com/learn/resources/downloads
https://docs.unrealengine.com/latest/INT/Resources/
https://www.cryengine.com/marketplace/product/cryengine-gamesdk-sample-project