Applications Won't Extract/Open

[Romulator]

The errors say I'm missing "SDL.dll", "zlibwapi.dll" , "glew32.dll", and "DevlL.dll". I'm so confused and don't know what to do. I have absolutely no experience with computer programming so try to keep the explaining as easy to understand as possible.

This to me suggests you have an incomplete installation.

Step 1
Steam:
Perform a Steam File Integrity Check (Problem I here). Amnesia through Steam is automatically updated to the latest version, which, at this time, is 1.3.1.

Retail:
Reinstall the game using your retail installer, then update your game using the appropriate software updater from here.

Step 2
Then copy and paste all of the files within the archive from the Amnesia 1.3 Mod Tools update here, into the same directory where Amnesia.exe is located. For example, since I use Amnesia's Steam directory, it looks like this.

Spoiler below!

Step 3
???