While I'm looking forward to RoN since I heard of it 3 years ago, it's not going to be much like Civ3. It will be a RTS game with some Civ-like flavor (actually a lot). As an RTS it will have good MP (it's actually easier to do) and BR put that in first as it was mainly intended as MP. Since BR had 3 years to finish it, it should be very polished. OTOH, it is a RTS, and the typical game can go from stone-age to modern-era in an hour or so.