https://steamdb.info/tech/Engine/Unity/
All games & tools that have been confirmed to have used the Unity Engine. Steam games using Unity engine, steam games made with the unity engine.
A couple I didn't see on the list:
https://www.pcgamingwiki.com/wiki/AI:_The_Somnium_Files
https://www.pcgamingwiki.com/wiki/AI:_The_Somnium_Files_-_nirvanA_Initiative
https://www.pcgamingwiki.com/wiki/Rune_Factory_3_Special
https://www.pcgamingwiki.com/wiki/Rune_Factory_5
Sorry yeah, I think someone commented this on another post that might be more comprehensive https://steamdb.info/tech/Engine/Unity/