I've made a fair number of 2D games (and actually completed/released a few of them). I'm hesitant to move into the 3D realm, because of the order of magnitude (everything takes ~10x more work).
To get started, I was thinking about picking something and modding it. What's a good, "easily" moddable game? By easily, I really mean:
- Most or all of the content can be changed via tools (not code)
- Tools are included, and mature (don't crash much, etc.)
- The game is free or cheap
- The game is scriptable (scripting language or SDK)
If this is not a "good" question, we can make it a list and community wiki it. I really want to know options to get started in the 3D modding realm.