You may have seen this thread earlier: [PC] Frostpunk is $3 on Amazon.com, could be a price error [Up: Dead]
What you might have missed was the ending: https://www.reddit.com/r/GameDeals/comments/8yrgaq/amazon_frostpunk_299_i_think_this_is_a_screw_up/
The rest is from the PC thread.
What you might have missed was the ending: https://www.reddit.com/r/GameDeals/comments/8yrgaq/amazon_frostpunk_299_i_think_this_is_a_screw_up/
I decided to pay $3 to play detective. It's piracy. Someone took the GOG version of the game, repackaged it with their own installer signed and published by "Ace Media Group LLC" and submitted it to Amazon. The installer looks fairly legit but the uninstaller doesn't work. They left GOG-specific metadata files and Galaxy64.dll (for GOG Galaxy client integration) in the install dir.
The rest is from the PC thread.
Xulima Dev says he has notified Amazon in October 2017 and they still haven't managed to take it down.
https://steamcommunity.com/app/296570/discussions/0/1489987634013222629/
Also removed links because of this, so no one else has to get scammed.