TF2 didn't start with a lot of story. There wasn't room for one. But as the updates got more ambitious, we found the perfect way to explore the mercs' world: comics. Over the years, the comics have spawned ancillary characters, then assistants to the ancillary characters. Companies mentioned in passing became global empires three generations old. The game that started as a handful of guys in a desert shooting at each other slowly blossomed into the most labyrinthine story in Valve history.

Catch-Up Comic May 2, 2014
TF Comics #5:
"Old Wounds"
August 31, 2015
TF Comics #6:
Coming soon
TF Comics #7:
Coming soon
The Contract July 2, 2015
Blood Money October 29, 2014
Grave Matters October 28, 2013
The Shadow Boxers December 19, 2012
Doom-Mates October 24, 2012
A Fate Worse Than Chess August 13, 2012
Blood Brothers August 12, 2012
A Smissmass Story December 15, 2011
True Meaning December 13, 2011
Bombinomicon October 27, 2011
Meet the Director May 5, 2011
Bidwell's Big Plan September 30, 2010
Loose Canon July 2, 2010
A Visual History June 10, 2010
WAR! December 17, 2009
Series of Saxton Hale Comic Book Covers 2009