SCP-087 is a game based on SCP 087,
the stairwell. Basically, you go down a dark staircase.
SCP-087-B is a game based on the previous SCP-087 game. Is more of a spiritual successor and has a different design than shown on the previous game and the SCP's page. Basically, you go down a semi-lit staircase. A lot better than the other 087 game.
SCP: Containment Breach is a game based on the facility itself. Basically, there's a large-scale containment breach of nearly every SCP to ever exist, and your goal is to survive and escape. Right now, there's no exit to the facility, but the game's still pretty good regardless.
So...yeah. Talk about it.