Left 4 Dead takes on ZAT!

Data from Steam — Steam Web API Terms of Use. Last updated 28 Aug 2026.

Updates & events

20 Aug 2015

The entire cast of the Left 4 Dead games are now available to play in Zombie Army Trilogy from today as a FREE update. Check out the launch trailer here. Wondering how survivors from modern-day Louisiana ended up in 1945 Berlin? Download the FREE tie-in comic from the creators of cutting-edge British comic 2000 AD!

Type: In-game event
On Steam: On Steam ↗

Next →Want the best version? Get Zombie Army Trilogy!