Valve says exactly when L4D2 unlocks
Early doors tomorrow morning on PC.
Valve has said that the PC version of Left 4 Dead 2 will be available from Steam at 5am GMT tomorrow, 17th November.
The game's available to pre-order and pre-load from the developer's digital distribution service now.
In Europe, PC and Xbox 360 owners can pick up boxed versions this Friday, 20th November.
If you live somewhere other than the UK, Valve's compiled a list of local times (thanks Kotaku).
Left 4 Dead 2 puts you and up to three friends in control of four new survivors of a zombie apocalypse as they battle through five hour-long campaigns.
As before, it's a first-person shooter with heavy co-operative leanings, and there's a Versus mode where four other people can play as "special infected" to take you down.
Unlike before, there are a lot more set-piece gameplay ideas, gimmicks and game types, including the competitive Scavenge mode.
Check out our most recent hands-on preview, or if you're bored of reading that, look out for our review early tomorrow morning.