This is an early-access game, and nothing more than that.
Visuals are great, gameplay is fun in times, mostly it's very easy to destroy everyone with your army no matter the difficulty.
Ai is not polished , game has a lot of bugs and the Ui is crap.
Even with all of that above I would have given it the great score, but to leave out one more turn mentality, to create this into a 3 mini games (ages) that are short and boring, this is the worst entry into Civ franchise.
It does have potential to be the best, honestly, but it needs a whole lot more. Two game options (ageless and with ages) , one more term (endless gameplay), better Ai, more diplomacy options and better diplomacy, automatic explore, and a whole lot more improvements.
This is a try at a Civ game, ,it's a game that's only been done about 30%.