The_Damned alternate ending... This is how you activate the alternate ending:

First get to the box room... Once you are on top of the stacked boxes you should be able to just abouts make out a cross... Here is a screenshot:

Drag the larger box across and get someone to give you a boost:

Once you walk up to the cross it says "salvation?"

After you press it this opens up:

Once you go through the teleport you will come out here (the text says "your salvation awaits...never accept the dark side..."):

Under the water there is a series of cross switches that must be pressed... Here are all of them in order.

Cross 1:

Cross 2:

Cross 3 (to the right of the grate leading to cross 2):

Cross 4:

The last cross opens this door:

Which leads you to here:

Break the wall to get the barrel:

Push the barrel down the room (so the crushing wall does not kill you) and run to the cross (the text says "Well done! you escaped! and just in time for a cup of tea... :)":

That concludes the alternate ending to the_damned.