Repack (Update 4)
Changelog Updates 5/6:
28 January 2016 7:20pm: Improve asset streaming at low frame rates (reduces occurrences of low-res geometry for people at lower frame rates). Log more information for Radeon cards so we can try and debug more effectively. REVERTED at 8:09pm due to reported problems, will try again tomorrow.
28 January 2016 4:49pm: Fixed a coloring bug in one of the puzzle panels (it was solvable but a little bit confusing if you did certain kinds of incorrect solutions).
28 January 2016 3:10pm: Fixed a problem where the game would not launch (not even any launcher box visible) on Windows 7 with no service pack. (Most Windows 7 users did not see this since they are on at least Service Pack 1).