https://drive.google.com/file/d/1jNdQ-q29CW5fmC7FRi1TsnA4Z5sXaU9q/view

Open game folder


Delete all files in the folder


Replace with files from the compressed file

Open aos2-launcher.exe


Select a version

Open Steam client, find "Add a Game" at left-bottom corner

It's possibly already shown at list, then just check and add.

Or click "browse" button to find aos2-launcher.exe manually.

You can rename it as you wish.

• aos2-launcher.exe must be inside that folder. You can create shortcut to run it elsewhere.
  
• You can still open the game from Steam client after version changed.
  
• If you know about git, you can switch version with git commands. It's actually based on branch checkout.
  
• Delete .git folder and aos2-launcher.exe and then verify game intergrity to restore original files.
  
• The launcher is open-sourced on https://github.com/RepSklvska/aos2-launcher.