Plot: SCP Containment Breach is a free and open source indie supernatural horror video game developed by Joonas Rikkonen. It is based on the paranormal fictional stories of the SCP Foundation website. Wikipedia
Plot: SCP: Secret Laboratory is a free indie supernatural horror multiplayer video game. It was initially based on the single-player game SCP - Containment Breach, which is itself based on the paranormal fictional stories of the SCP Foundation website. Wikipedia
Plot: Lobotomy Corporation is an indie horror strategy management simulation game produced and published by South Korean studio Project Moon in 2018. The game has a sequel called Library of Ruina. Wikipedia
Plot: Cry of Fear is a survival horror game developed by independent Swedish studio Team Psykskallar. Though originally a mod for the video game Half-Life in 2012, it was released as a standalone product the following year. Wikipedia