https://www.thegamer.com/best-scp-games-steam-pc/
SCP stands for Secure, Contain, Protect, which a Foundation was created to protect the world from these entities and anomalies that don’t adhere to the laws of nature. In 2012, video games featuring some of the most popular SCPs were created, including fan favorite SCP - Containment Breach. There are quite a few SCP games on Steam, and these are the few that are great to check out to get started on your SCP journey.
more about: https://www.50gameslike.com/games-like/scp-secret-files
Secret Lab if you like multiplayer, Lab Rat if you like single player, and 5k if you like tactical shooters (has some shit AI tho). Secret Lab is especially active (and confusing if you are new lol)