It's not quite zombies , but Paradox are still set to unleash a horde on Crusader Kings 2. The Old Gods brings pagan pillaging and Norse nautical navigation to the game, and you can see some of this in action in this two-part highlights reel of Paradox's recent preview livestream. In just under nine minutes, jarring cuts of information will guide you through a campaign beginning at the expansion's new 867 AD start date.
I'm looking forward to this one. The last expansion, The Republic, made for a great side-campaign, but its smaller scope meant it's impact on the overall game was fairly minimal. From what we've been shown so far, The Old Gods should integrate far more dramatically - perhaps rivalling even Sword of Islam in its overall effect on the game.