Via PC Gamer, there is now a mod which turns the graffiti in Left 4 Dead 2 into...dumb Jaden Smith tweets.

Left 4 Dead 2 is now backwards compatible on Xbox One, Microsoft announced today. Rumors of another Left 4 Dead game have been floating around for ages, but nothing’s surfaced.

Is this... The Valvengers? The Hulk, Hawkeye, Iron Man, Nick Fury, Black Widow, Captain America and Thor (poor Thor) all transformed into Valve characters. With the Scout and the Soldier from Team Fortress 2 and a zombie from Left 4 Dead, teaming up with Gordon Freeman, this team probably wouldn't function smoothly.

Thanks to the efficiencies afforded by Linux, "we skipped Valve time," jokes Valve, and the Left 4 Dead 2 Linux beta is available right now. Access to authoring tools and a beta dedicated server come with it, if you own the game already.

Soon, mods for Left 4 Dead 2—like the one that turns zombies into cats—will work in Campaign and Survival modes.

L4D2 is free to play for one weekend (starting this Thursday). New achievement added for long-time players.