Virtually all Games Workshop video games are up on sale on Humble Bundle. While not a bundle deal, there are quite a few games with discounts, especially the Battlefleet Gothic Armada game that is just about to get released.
here is a look at what games are on sale through their site. You can see and order them at the link here
https://www.humblebundle.com/store/promo/gamesworkshop
