Enter the endless stairwell and try to reach the other end. Walk in the right direction and listen to random scary sounds creating an immersive interactive experience. The game is based on the SCP-087 article of the SCP Foundation online fandom created by regular users.
Downloading SCP-087 1.0 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. The most popular version of the application is 1.0. This free Mac application is a product of The SCP Foundation. The software is included in Games. We recommend checking the downloaded files with any free antivirus.
From the developer:
SCP-087 is a Unity first person horror game for Mac. Basically it’s a never ending stairwell with random creepy and scary sounds but past the surface it’s an immersive experiment into fear. The user must see how far he can go down those dimly lit stairs before he turns back or turns the game off.
You may want to check out more Mac applications, such as Tradewinds Caravans, G.H.O.S.T. Chronicles - Phantom of the Renaissance Faire or Cassandra's Journey - The Legacy of Nostradamus, which might be related to SCP-087.