Amnesia claims it needs a disk

[Googolplex]

I got it from Humble Bundle V, except I had to download the torrent because I was 5 cents short of getting the Steam key.

I understand to download a torrent when the game would be steam exclusive. But Amnesia is DRM-free and not connected to Steam, so you should buy the game via official store.

Otherwise you will not get any support here!