Using a Game Engine

[Elven6]

I want to get back into the programming scene after being away for a while. I have experience in a few languages (C++, C#) and was hoping to use it for game development. What game engines are available for the Dreamcast and how would one go about using them?

For engines like QuakeDC I assume one would make a .wad file, burn it to a disc with the engine and it would run?