This is more of a gripe with modern gaming but it definitely applies to Civ 6. I really dislike the fact that rules of the game change so often. I find Civ 6 to be a very difficult game and it drives me crazy that every few months a patch changes things (for example AI behavior or policy cards) and now I have to essentially re-learn portions of the game in order to adjust my play to those changes. Lots of people talk about balance in the game and it seems the devs are striving for some semblance of "balance" but I disagree. I think both civs and strategies should exist on a range of viability: some completely OP and imbalanced, lots that will work for most situations, some that are super fringe with limited uses. The constant chase for "balance" just frustrates me.