Free Steam key when you register with DLH.
There are currently 4 games for free at the moment:
Enclave
2150: Project Moon (temporally out of keys)
Pirates of Black Coves
2150: Lost Soul
Commander: Conquest of the Americas
You can find all your free keys after logging in and click on Profile/Keys at the top of the page.
Also, as you pointed out they have replace the Moon Project with Pirates of the Black Cove so maybe amend the post accordingly to avoid confusion and disappointment.
cheers OP just got 2 free games
2150: Lost Soul
Commander: Conquest of the Americas
already had the others from another promo
took a little bit of fighting turning ad block off and on again to get it to work, but got there in the end
Technically, this has already been posted. Could have just unexpired it as it is not a new game that is free now. (28.11.14)
It has been free on and off since then.
But I upvote it anyway as anything that brings it to the attention of people is great. Duplicate or not. Freebie tag or not. ;-)