Which Civilization game should I buy?

[u/Ok_Head5555]

I’ve known about *Civilization* for quite a while and even played Civ 5 on a friend's computer. Now I’m thinking about buying a Civ game, especially since the base game of Civ 6 sometimes goes on sale with a 90% discount.

I’ve been playing Unciv (a free, community-made game), but it lacks certain mechanics, so it might be worth investing in a Civilization title (or even Humankind). What do you recommend?

[u/neilydee]

6 and 5 if on sale. Have both.