SCP-087-B is a short, experimental indie horror game created by Joonas ("Regalis") Rikkonen. It is loosely based upon the SCP Foundation universe and is considered by Regalis to be the stepping stone to the creation of SCP - Containment Breach.

The Red Mist Monster appears as a black humanoid figure with large red spots across its body and solid white eyes.

Game: https://www.scpcbgame.com/scp-087-b.html