What changed in Left 4 Dead 2 in 2020

New arenas where players can scavenge for fuel while facing hordes.

New gameplay mutations added to enhance player experience.

Previously unused dialogue has been restored in the game.

Introduction of new melee weapons for zombie combat.

New game mode accessible from the main menu.

Counter-Strike: Source weapons are now officially available on all servers.

Improvements and fixes made to player versus player gameplay.

Various enhancements to the user interface.

A brand new campaign based on the original Survival map with a path to salvation through hordes of infected.

Numerous bug and exploit fixes implemented in this update.

Visual update featuring gore effects on L4D1 infected models.

New environments to withstand the onslaught of the undead.