I've built the first level : Into The Dark, of Legend Of Grimrock on Portal 2!
I tried to be as accurate as possible to represent the first level (I just added a door to the end).So, if you want to test this creation :
http://steamcommunity.com/sharedfiles/f ... d=68511400
Unfortunately, the second level is too big to be designed...
Good luck, & long live Almost Human!
Regards.