Hi,
What is your graphics card? You should have a look at these guides if you haven't done so already:
Amnesia T.D.D. Graphics Card Troubleshooting Guide
Amnesia T.D.D. Troubleshooting Guide
You might find a solution to your problem, depending on your GPU model.
Keep in mind that sellers are solely responsible for publishing the minimum system requirements provided by the game developers/publishers in their respective websites. All the main stores I could find that sell ATDD have a warning about possible GPU incompatibilities and limitations, with the exception of Desura where I could not find that information on the game's store page.
ATDD Official Website Wrote:Video Card: Radeon X1000/GF 6
Integrated graphics will likely not work. Low cost video cards may perform worse, or not work at all, even if they are much newer than older medium to high range cards.
Steam Wrote:Graphics: Radeon X1000/GF 6 - Integrated graphics and very low budget cards might not work.
GOG.com Wrote:Graphics: Radeon X1000/GeForce 6 or better
Compatibility notice (PC): Integrated Intel graphics cards are not supported
Humble Store Wrote:Video Card Radeon X1000/GF 6 - Integrated graphics and very low budget cards might not work.
Mac App Store Wrote:- ATI/AMD or NVIDIA graphics card, no other types of hardware supported.
There's also a
Demo available, so people have the chance to try the game before buying it.
Game developers (and especially indie game developers) can't test their games on every single graphics card available on the market, it's not humanly and logistically possible. All they can do is to provide minimum/recommended requirements.
As a side note: I have integrated ATI graphics and I'm able to play the game on medium settings without any problems, even though the system requirements warn that "integrated graphics might not work". So don't give up before trying every possible solution!