It seems that rumors of a new Left 4 Dead 2 update were true. The 2009 zombie-smashing title will receive a massive content update on September 24, packed to the brim with more ways to survive the apocalypse with friends.

A new trailer for the update, titled The Last Stand, shows off everything players can expect to find in this major content drop. Starting with the biggest news, Left 4 Dead 2 will be getting over 20 new survival maps. For clarity, the Survival game type in Left 4 Dead 2 pits players against waves of zombies until they're defeated. They're not like the episodic campaigns - no frolicking through kiddie land here. The game already had 30 survival maps, bringing the grand total to over 50.

Outside of new maps, a few parts of the game are also being improved. Animations are getting a rework, and previously unused voice lines will finally be able to grace headsets. New melee weapons are also making their way into Left 4 Dead 2, including a shovel and pitchfork. For the folks that like playing as the infected in PVP, expect what the trailer calls "fixes and enhancements," vague terms that could mean just about anything. The Last Stand update will also add 30 new achievements, two new mutations and miscellaneous bug and exploit fixes.

The Last Stand was made by a group of over 30 members of the Left 4 Dead community in collaboration with Valve over the course of 11 months. As a true passion project, The Last Stand will be a totally free update for owners of Left 4 Dead 2. Once again, you can expect this update on September 24.