Thanks to the efficiencies we were able to achieve with Linux, we skipped Valve time and are delivering the L4D2 Beta Linux build today as planned. The Beta build not only allows Linux owners to play the game natively, it is also the testing ground for our new Extended Mutation System.If you currently own Left 4 Dead 2, You should see Left 4 Dead 2 Beta in your library. If it doesn t show up, restart Steam. This is a complete build of Left 4 Dead 2, so the build is as large as the current game.
