While TW is still way ahead in terms of sheer number and graphics.

Lo and behold a clone with stunning sea battles (look at screenshots).

www.imperialglory.com

CA! The clones are nipping at your heels!! Watch out!

I think these are the same developer who did Praetorians(?)

Another feature that is interesting is that you can garrison buildings. Nice.

Still sketchy on the other details.