Humble Bundle also have 'This War of Mine' on sale - same price as on Steam but with more bang for your buck!
The Humble Deluxe Edition of This War of Mine includes:
3 Digital Art Cards
5 Digital Wallpapers
I'm pretty sure this is the lowest that the Deluxe version has been so unless you are holding out in the hopes it appears in a mid tier bundle now is probably the time to buy.