Unlocks every achievement for all owned Steam titles.
Tested on Windows Linux and Mac.
Install the runtime first
Make sure Steam is logged in.
[Windows]
Download 'SteamAchievementUnlocker-Win64.zip' from the release section
Extract the files then run 'SteamAchievementUnlocker.exe' while steam is running.
If you only want to unlock for specific app IDs, just add them on the end seperated by spaces via CMD.
SteamAchievementUnlocker.exe 730 813780
[Linux / Mac]
Download 'SteamAchievementUnlocker-Linux64.zip' or 'SteamAchievementUnlocker-Mac64.zip' from the release section
Extract the files, then in the CLI browse to the directory.
Run these commands;
sudo chmod +x SteamAchievementUnlocker SteamAchievementUnlockerAgent
./SteamAchievementUnlocker
If you only want to unlock for specific app IDs, just add them on the end seperated by spaces.
./SteamAchievementUnlocker 730 813780
[Clearing achievements]
Add the switch statement to the arguments
--clear
Requires .NET 8 SDK to build from source