Steps
- Log into Steam Support.
- Select Games, Software, etc.,
- Select the game from the search function that shows up.
- Select the option: I want to permanently remove this game from my account.
- Select the option: Ok, remove the listed games from my account permanently.
How do you completely delete a game?
Delete your Play Games profile and all Play Games data
- On your Android phone or tablet, open the Play Games app .
- At the top, tap More. Settings.
- Tap Delete Play Games account & data Permanently delete. Permanently delete.