...has decent built-in networking for up to 8 players, and allows a sort of "server chat-forum" start up where players can gather to join up with each other and then, when they are ready, the leader hits the "start game" button and everyone starts.

Basically, I'm looking for something almost exactly like how it is set up for multiplayer in ye olde game "Dungeonsiege".

Of course, cheaper is better, but I'm not adverse to spending $$$$. Graphics, sound, etc. should be at least "average" for nowadays (shaders, normal maps, etc.).

Anyone?

Or, doe anyone have a third-party tool for A7 (or other game engine) that would allow this?

PS: I'm not a programmer; I know just enough to get myself into serious trouble, but not enough to get myself out.