1
Generate the Manifest & Lua files
Find your game, and click Generate. If it says Manifest not found, that means that your game is not available.
2
Open SteamTools
If you haven’t already, open SteamTools and floating icon should appear.
If the floating icon didn’t appear
3
Unzip & drag the files onto the floating icon
If you don’t have WinRAR
If you have WinRAR
4
Congrats!
If you’ve followed all of the steps correctly, you should have the game in your Steam Library, available to download.