Steam achievements in Civ5/One to Rule Them All

{| class="wikitable"
| || One to Rule Them All
| Beat the game on any difficulty setting with only one city.
:Likely referring to the One Ring from The Lord of the Rings by J.R.R. Tolkien. It contained an inscription describing it, with the lines "One Ring to rule them all, One Ring to find them, One Ring to bring them all and in the darkness bind them."
|}
Category:Steam achievements in Civ5