Minecraft Alpha 1.1.1, the infamous version of Minecraft Alpha, is no longer playable on the official Minecraft Launcher due to the link used to patch the grey screen on AMD devices no longer being online. Here is the Error code below:

Failed to download file.
Name: lwjgl-2.9.3-grayscreenfix.jar
URL: http://files.betacraft.pl/launcher/assets/lwjgl-2.9.3-grayscreenfix.jar
Error details: Failed to connect to files.betacraft.pl port 80 after 21597 ms: Timed out
Filename on disk: lwjgl-2.9.3-grayscreenfix.jar
Path: C:\Users\BLANK\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.3-grayscreenfix\lwjgl-2.9.3-grayscreenfix.jar
Exists: Nonexistent

The official launcher attempts to grab a file from files.betacraft.pl/assets/lwjgl-2.9.3-greyscreenfix.jar, however the site is no longer online. It will do this forever; online or offline, it will try to get this .jar file. Due to this, Minecraft Alpha 1.1.1 is no longer playable through 1st-party means.