Specifically it's F.E.A.R. 2: Project Origin and F.E.A.R. 3, but there's also Rocksteady's Batman: Arkham Asylum and Arkham City with Scribblenauts Unlimited and LOTR: War of the North too.
Both Batman titles are the GOTY editions as they are the only versions now officially stripped of the Games for Windows Live client, keeping the Batcave open.
"We understand that our Humble customers may already have a game that is featured in a bundle and would like to share the game with their family or friends. We’ve just rolled out an experimental feature that allows you to send extra games on Steam to someone else by clicking the gift icon next to the game on your download page."
All games in the Humble WB Games Bundle use Steam keys. So far over $1.7 million has been raised since yesterday. Check out thefor more. Pay more than $4.63 as of press time to unlock the entire bundle.
Humble WB Games Bundle offers Batman, F.E.A.R., Scribblenauts and LOTR
06 November 2013 | By Simon Priest