http://www.pcgamer.com/this-war-of-mine-gets-fathers-promise-dlc-and-a-steep-discount/

To commemorate the three-year anniversary of grim survival game This War of Mine, today developer 11 Bit Studios released Father's Promise, the first episode of a new DLC series which "focuses on narrative over pure survival." It's now available on Steam for $2. 

The season pass for This War of Mine: Stories goes for $5, with more episodes to come in 2018. Additionally, through Tuesday, November 28, This War of Mine itself is available for $4 at 80 percent off.