L4D
L4D definition by Slang.net
This page explains what the acronym "L4D" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.
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Gamers use L4D as shorthand for the game Left for Dead. In this first-person shooter (FPS), four players must work together to survive a zombie apocalypse.
Valve released the original L4D in 2008. Most notably, the game uses a feature called the AI Director to procedurally determine when and how enemies appear, making each playthrough just a bit different. In 2009, Valve released a sequel to L4D, called Left 4 Dead 2 (L4D2).