>>81536866
Empire Total War with patched Darthmod.
I'm playing the Ottomans. They're a cool artillery focused faction but start off weak, overextended and with a very poor initial roster of units compared to the better equipped/enlightened/disciplined European factions, once you get some more modern units of infantry you're good but you have strong artillery throughout the weaker early times.
It was maybe a fiver on CDKeys? Have had a huge amount of fun playing with this.