Crusader Kings 2 was released February 14, 2012. It's record simultaneous users (so far) was reached 3 days ago. Go @CrusaderKings
For your information: Putin has been missing since we sent him a review code of Cities Skylines on March 5. Just saying.
Let's celebrate our 4 year old #ck2 by linking to a classic - "Crusader Kings forum is amazing out of context" m.imgur.com/mLMnPtE