So, is Antichamber something I should get for $5.99?

I would if it were DRM-free.

I'm considering Receiver, nice price and I like the concept of hearing the story in the order you find it.

I was thrown off by some of the previous entries still appearing available below MSRP. For example, Prison Architect is still one-third off, and couple others are showing (lesser) reductions.

Apparently they also added two games which we can't see in Europe (yet?), Guild Wars 2 and Far Cry 3: Blood Dragon. Region-locking on humble store? Not cool.

edit:
German IP
US IP

now that sucks!

That is how ArenaNet/ncsoft and Ubisoft chose to roll. Be mad at them for doing that and a little less at Humble for accommodating them.

It still sucks though :/

Quick question, is Blood Dragon a steam key or a uPlay one?

Says "Steam" on the store page.

It can be argued that if a game doesn't need any installations to run (registry entries, etc.), having an installer for it is unnecessary.

And if the game is a simple, small, single file that runs "as is" (Flash games, etc.), having it zipped or rared doesn't really add much to it's usability, but it does require using an unzip program, and even installing one, if there isn't any.

So while having a consistent way of doing things is OK, it is not necessarily preferable at all times.

For instance, I don't use the ScummVM that comes packaged with GOG games. Having the installer installing it and game shortcuts doesn't really add any value to my purchase. It only means that I need to delete unnecessary files from the target drive and shortcuts from the Start menu. What I really wanted was simply the game data files, which I can then use with my already existing ScummVM.

I'd bet my fuzzy moustache that it's Uplay + Steam as with other titles such as the AC games. DRM wrapped in more DRM.

Aye, http://pcgamingwiki.com/wiki/The_Big_List_of_3rd_Party_DRM_on_Steam#Uplay

This, sadly, is 99% true. When you check the Steam storepage it will tell you "Requires a UPlay account." and suddenly you got twice as much DRM power!

So with region locked deals and only 3 DRM Free games the second day this is looking more like just another key reseller that happens to have some more DRM Free games than average and not a "GOG Killer".

At least they price the games the same no matter the region.

Region locking? Weak.

And when checking its Humble page's system reqs: No surprise there. So, yeah, it's both.