I'd say go to Geek Culture for 3DGamemaker support. Game Design Theory isn't meant for that, it's designed to hash out game concepts and get public opinion on ideas, and learn the basics, as well as the tricks of the trade, about game design theories and practices. It's also good for a text adventure competition (obvious plug for the upcoming '07 contest there)
. The 3D section might be okay, depending on what your question(s) is/ are. But for general support, I'd suggest Geek Culture, as it's probably the best suited for it (imho anyway).
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