2 1/2 of the makers of the L4D(2) mod Dead Before Dawn went solo and created THE CORE.
Difficulty graph
(view original)
Post a comment
Description
Estimated difficulty graph of the campaign
why is 4 so much less?
I've made a news post about this that explains it more in detail. The puzzels are not that super easy overall so to have some kind of "break" in the middle would be cool i think to let non veteran portal players catch their breath.