What changed in Left 4 Dead 2 in 2009

43 updates · 16 main milestones · Jul 13, 2009 to Dec 14, 2009

Dec 14, 200912 events
New Co-operative Campaignnew contentMilestone
Players will experience a new co-operative campaign set in rural Georgia.
Steam
Introduction of Uncommon Common Zombie Classnew content
A new type of zombie class will be introduced in the DLC.
Steam
New Co-operative Challenge Modenew content
A new co-operative challenge mode will be included in the DLC.
Steam
New Melee Weapon and Firearmnew content
The DLC will include new weaponry for players.
Steam
New Gameplay Modesnew contentMilestone
Introduction of new arenas for Survival, Versus, and Scavenge mode.
Steam
New Survival, Versus, and Scavenge Arenasnew content
New arenas will be introduced for Survival, Versus, and Scavenge modes.
Steam
New Melee Weapon and Firearmnew content
The DLC will include a new melee weapon and firearm.
Steam
New Co-operative Challenge Modenew contentMilestone
A new mode of play focused on co-operative challenges.
Steam
The Passing DLC Announceddlc releaseMilestone
The first game add-on for L4D2 featuring L4D1 Survivors and new gameplay modes.
Steam
New Co-operative Campaignnew contentMilestone
Players will experience a new co-operative campaign set in rural Georgia.
Steam
The Passing DLC Announceddlc releaseMilestone
The first game add-on for L4D2 featuring new gameplay and characters from L4D1.
Steam
Introduction of Uncommon Common Zombie Classnew content
A new 'uncommon common' zombie class will be introduced.
Steam
Nov 17, 20095 events
Introduction of New Special Infectednew content
Left 4 Dead 2 introduces new Special Infected: The Spitter, the Charger, and the Jockey.
Steam
Contest Winners Announcedother
Winners of the 'Dude, Where's My Thumb?' contest announced, including Roland Nagy.
Steam
Introduction of New Special Infected: Spitter, Charger, and Jockeynew contentMilestone
Left 4 Dead 2 introduces new Special Infected characters: Spitter, Charger, and Jockey.
Steam
Left 4 Dead 2 Launch Announcementdlc releaseMilestone
Left 4 Dead 2 is now available on Steam and will be available at retail stores on November 17th.
Steam
Contest Winner Announcementother
Roland Nagy wins the 'Dude, Where's My Thumb?' contest with a customized infected Xbox 360.
Steam
Nov 3, 20092 events
Left 4 Dead 2 Demo Releasednew content
The Left 4 Dead 2 demo is now available to all PC gamers via Steam.
Steam
Left 4 Dead 2 Demo Open Accessnew content
The Left 4 Dead 2 demo is now available to all PC gamers via steam.
Steam
Oct 29, 20091 event
Early Access to Left 4 Dead 2 Demonew content
Early access to the Left 4 Dead 2 demo is now available for users that have pre-purchased via Steam or at participating retailers.
Steam
Oct 15, 20095 events
New Boss Infected Zombies in Demonew content
The demo features all the new boss infected zombies included in the full product.
Steam
New Melee Weapons in Demonew content
The demo includes all the new melee weapons featured in the full product.
Steam
Playable with 1 to 4 Playersnew content
The demo is playable by 1 to 4 players over local or Internet connections.
Steam
Left 4 Dead 2 Demo Featuresnew content
Demo includes gameplay from 'The Parish' campaign with new boss infected zombies and melee weapons.
Steam
Left 4 Dead 2 Demo Featuresnew content
The demo will feature gameplay from 'The Parish' campaign, set in the New Orleans French Quarter.
Steam
Oct 8, 20092 events
Introduction of Scavenge Modenew contentMilestone
Scavenge mode challenges players to compete in round-based games of up to 8 players (Survivors vs. Infected).
Steam
Introduction of Scavenge Modenew contentMilestone
Scavenge mode challenges players to compete in round-based games of up to 8 players (Survivors vs. Infected).
Steam
Aug 27, 20098 events
Introduction of New Uncommon Commonnew content
A new Uncommon Common will be introduced at the event.
Steam
Unveiling of Dark Carnival Campaignnew contentMilestone
Dark Carnival is the third of five campaigns revealed, continuing the story after escaping Savannah.
Steam
Showcasing Swamp Fever Campaignnew content
Swamp Fever will be shown at PAX for those who missed it at Comic Con.
Steam
Unveiling of Dark Carnival Campaignnew contentMilestone
Dark Carnival is the third of five campaigns revealed, continuing the story after escaping Savannah.
Steam
New Items and Weapons at PAXnew content
New items and weapons will be showcased at the Penny Arcade Expo.
Steam
New Items and Weapons at PAXnew content
New items and weapons will be showcased at the Penny Arcade Expo.
Steam
Showcasing Swamp Fever Campaignnew content
Swamp Fever will be shown at PAX for those who missed it at Comic Con.
Steam
Introduction of a New Uncommon Commonnew content
A new Uncommon Common will be introduced at the event.
Steam
Aug 26, 20094 events
Unveiling of 'Dark Carnival' Campaignnew contentMilestone
The third of the five campaigns shipping with L4D2 will be shown at PAX.
Steam
Announcement of Over 20 New Itemsnew content
Valve plans to unveil several new items coming with the game launch.
Steam
Unveiling of 'Dark Carnival' Campaignnew contentMilestone
The third campaign in Left 4 Dead 2, set to be shown at PAX.
Steam
Announcement of 20+ New Itemsnew content
Valve plans to unveil a few more of the new items coming with the game launch.
Steam
Jul 13, 20094 events
Unveiling of 'Swamp Fever' Campaignnew contentMilestone
The second of the five campaigns shipping with L4D2, set in the New Orleans' French Quarter.
Steam
Announcement of 20+ New Itemsnew content
Valve plans to unveil a few more of the new items coming with the game launch in November.
Steam
Unveiling of 'Swamp Fever' Campaignnew contentMilestone
The second of the five campaigns shipping with L4D2, set to be shown at Comic Con.
Steam
Announcement of 20+ New Itemsnew content
Valve plans to unveil a few more of the new items coming with L4D2's launch.
Steam