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Forget the significant overseas naval invasions that the AI would sometimes surprise you with in Civ 4: that is completely beyond the capabilities of this game. Adding water tiles to the mix completely flummoxes the AI, as units without escort repeated kill themselves by hurling themselves at your naval units and well-fortified coastal cities, without support or the slightest possible chance of success.
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The AI is utterly unable to mount an effective invasion force even between two neighboring cities on the same continent, let alone on a broader scale.
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The AI is even worse when it comes to managing armies at a strategic level. It neither exploits advantages or guards against weaknesses- not even to the limited extent the AI could do these things in Civ 5. With respect to discrete tactical battles that involve more than a couple of units, the AI is utterly helpless. Computer players in Civ 5 were dumb, but in Civ 6 now they are beyond dumb- they simply cannot function in a way that is rational at the most basic levels. The first and most obvious problems with Civ 6 relate the complete inability of the AI to play the game. Unfortunately, they seem to have gotten worse. Because there was a lot to like about Civ 5, I had hoped that Civ 6 would find a way to improve some of these issues. That decision created loads of obvious and basic problems that many others have already commented on in the context of reviewing Civ 5: e.g., tactical battles that stretch over hundreds of years, a confused crowding of the campaign map with units, etc. Many of the core problems arise from the decision, in Civ 5, to de-stack units in an effort to make combat feel more tactical, and then impose this tactical combat framework on the strategic map. The root of the problem lies in a slow progression of intended improvements to the game which have both totally outstripped the abilities of the AI and have erected impediments in the ability of human players to do things that used to be straightforward. Ironically it has taken a lot of work to break this game so completely. Civilization always felt like the original and for that reason special. I have also, in between releases, played many of the turn-based strategies that clearly owe a lot to Civilization, including the Galactic Civilizations series, Age of Wonders, Total War, etc., all since the early days (I realize that I am betraying both advanced age and a misspent life here). I have been playing the Civilization games since Civ II/ Alpha Centauri. It has been tough for me to admit to myself that Civilization 6 is, in its essentials, a fundamentally broken game. By caelio | Review Date: November 1, 2016
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