The Denmark - The Vikings Add-on for Sid Meier's Civilization V has 11 achievements.
Enter a snow tile with the Norwegian ski infantry
Beat the game on any difficulty setting as Harald Bluetooth
Build a motte and bailey improvement
Win scenario on Emperor (any civ)
Win as Anglo-Saxon England (any difficulty)
Pillage 9 Farms on the same turn
Win as Normandy (any difficulty)
Win as Denmark (any difficulty)
Win as Norway (any difficulty)
Win scenario on Immortal (any civ)
Win scenario on Deity (any civ)