From here, you can download the Steam Achievement Manager of any game you want to download or install from the Steam library. Steam Achievement Manager allows users to add their favorite game to achievements from the list, but there is a high probability that all your desired games will already be added to the list, and lastly, you can add games to Steam Success Manager, also known as Steam Achievement Unlocker.
Full Specifications of Steam Achievement Manager
Steam Achievement Manager 7.0.25
Windows 2000 / Vista / Windows XP / Windows 7 / Windows 8 / Windows 10
16, March 2020
05, December 2020