This is the game I will be demonstrating for this guide:



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Head over to your Steam Library and type in the game you want to reset achievements for.
Click on that game and click on the settings icon and then click "Properties" then "Updates"
There you will see the "App ID" you will need this for the upcoming steps.

It should look like this:

Now, we want to open the Steam Console which is done by typing "run" in your Windows search bar, type or copy/paste this command: steam://open/console


Click "OK"

NOTE: Resetting your achievements will affect your Average Game Completion Rate. (0%)

Head back to Steam and click on the "Console" tab next to your profile name.

Remember, this will remove ALL achievements as well as stats.

Type this in console: reset_all_stats <appid>

Here's an example of me resetting: Trivia Vault: Food Trivia


reset_all_stats 861720



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