It’s hard to believe but yesterday saw the 1st anniversary for the release of Valve’s Left4Dead 2. The makers of the classic multiplayer Zombie shooter have been celebrating over the on the official blog, with pics of some early concept art. We are also promised “new stuff coming Friday..”.

If you haven’t yet played Left4Dead 1 or 2, you really owe it to yourself to see this work of art. If you like a good scare, and having some of the most fun there is to have online, it’s the best 20 bucks you ever spent.

Related:
Official Left4Dead 2 blog