Wrath of the Lich King, the expansion pack for World of Warcraft, has reigned supreme on the North American PC game sales chart since it first hit stores last November (give or take a few weeks when Sims 2 bested it). Now, Lich King's been unseated by a newcomer: real-time strategy game Warhammer 40K: Dawn of War II.

Here's the full top ten of PC games sales for February 15-21 released by the NPD:

1. Warhammer 40K: Dawn of War II / Relic
2. World Of Warcraft: Wrath of the Lich King
3. The Sims 2 Double Deluxe / EA Maxis
4. The Sims 2 Deluxe / EA Maxis
5. Spore / EA Maxis
6. World Of Warcraft Battle Chest / Blizzard
7. World Of Warcraft / Blizzard
8. F.E.A.R. 2: Project Origin / Monolith
9. The Sims 2 Apartment Life Exp. Pack / EA Maxis
10. Crysis Warhead / Crytek

Dawn of War II was released on February 19th in North America. Pretty impressive showing here but I suspect Lich King will manage to claw its way back up. It's just a matter of when.