Achievement Unlocker
The Achievement Unlocker feature will automatically unlock your game’s achievements in a way that looks like they were earned naturally.
Configure your settings in Settings > Achievement Unlocker first
You can add multiple games to the achievement unlocker list
Steps
Click in the sidebar
Click Edit List to open the edit list modal and click on games to add and remove them
Click Start Achievement Unlocker at the top of the games list to start the feature
Additional Information
You can add as many games to your achievement unlocker list as you like, but to remain looking legitimate, SGI will only unlock achievements for one game at a time.
You can run multiple instances of SGI to unlock achievements for multiple games simultaneously. You will need to pick which games to unlock achievements for in each instance.
Once SGI finishes unlocking all available achievements for a game, it will move on to the next game, until no games are remaining.