The top results based on the latest update are Batman: Arkham Asylum GOTY Edition [Score: 1.1], Batman: Arkham City GOTY [Score: 1.0] and Alan Wake [Score: 1.0].
The top rated games you can find here are The Witcher 3: Wild Hunt [SteamPeek Rating: 12.7] ranked #132, Life is Strange™ [SteamPeek Rating: 11.5] ranked #242 and Grand Theft Auto V [SteamPeek Rating: 11.2] ranked #16.
Also don't forget to check the newest releases Spellbreak [Release date: 2020-12-15] ranked #84, TheDawn [Release date: 2020-12-11] ranked #244 and Haydee 2 [Release date: 2020-11-23] ranked #148.
While it is tempting to play with the newest and the best, there might be some other gems in the results, like CODE VEIN [SteamPeek Rating: 8.7] ranked #52, Darksiders Warmastered Edition [SteamPeek Rating: 7.7] ranked #53 and Fable - The Lost Chapters [SteamPeek Rating: 7.9] ranked #54.