I don't know for 100% certain, but this site http://www.steamlocks.tk/ seems to be a good indicator of what games are locked and what are not locked just by entering the details of the game and site it's from.
It says that Risen 3 - Titan Lords from Amazon US is region free.
Comment has been collapsed.
So it was region locked? Did it activate as (NA) key?
Comment has been collapsed.
9 Comments - Last post 6 minutes ago by Chris76de
318 Comments - Last post 1 hour ago by adam1224
8 Comments - Last post 5 hours ago by lostsoul67
47,318 Comments - Last post 7 hours ago by misterhaan
134 Comments - Last post 8 hours ago by wigglenose
371 Comments - Last post 14 hours ago by LhorXhor
27 Comments - Last post 15 hours ago by tobiasreich82
9 Comments - Last post 1 minute ago by Mdk25
1,121 Comments - Last post 2 minutes ago by PapaSmok
376 Comments - Last post 26 minutes ago by DarkDreams1
93 Comments - Last post 31 minutes ago by pivotalHarry
50 Comments - Last post 1 hour ago by smartbaby626
988 Comments - Last post 1 hour ago by ngoclong19
72 Comments - Last post 1 hour ago by Deleted2137
As the title says
Comment has been collapsed.