[Twan]

Note that, if someone (with huge c++ knowledge) want to try, Paradox is now releasing the sourcecode of their old engine (the 2d one of eu2/ck/hoi etc) to members of their community who want to make their own versions and sell them on gamersgate.

But I rather doubt the engine is usable for a dom-like pausable real time game. Considering the years of patching Paradox needed just to make some of their games playable, I can't imagine how many a game of the complexity of dominions and using their kind of code would need.