Freezing 5 Minutes In

[plutomaniac]

ERROR: Could not find light 'spotthunder_0'
ERROR: Could not find light 'pointthunder_0'
ERROR: Could not find light 'ambthunder_0'
ERROR: Could not find sound entity 'loop'

You get these errors, as seen from the log. After searching the forum I found these solutions although all the guys with such a problem had a bad gpu, your is not bad. But try these:

1) Reinstall the game and make sure it is updated by steam. Delete the folder My Documents/Amnesia/ so that the launcher will be able to completely recreate it, and then when you launch the game, hit the "Detect" button to have it choose settings for you, then launch the game.

Warning: By deleting this folder you lose any progress but you haven't played anything yet so you shouldn't mind about that...

2) Run the game in windowed mode and not full screen. Also, at the launcher try a lower resolution like 1024x768 or even lower like 800x600 just for the testing.

3) Exact same problem with you, there doesn't seem to be a final solution though:
http://www.frictionalgames.com/forum/thread-4773.html
http://www.frictionalgames.com/forum/thread-3763.html