Some reviews were less positive, with the most common criticisms being directed at the game's artificial intelligence.
1UP.com says that the game features an "A.I. that can't play the game," and noted that the game has "some nice innovations that will make it hard to go back to
Civilization IV. But in other ways, it's a disappointment that needs a lot more work."
[74] Eurogamer gave the game an 8/10 despite their criticism that "the AI in Civ V is still curiously terrible,"
[75] while
GameShark gave the game a B+ while stating that "the computer opponents are ill equipped for the military side of things."
[76] Other complaints include criticism of the game's speed, which is approximately 5 hours at "normal" game pace.