SCP number: SCP-990 http://www.scp-wiki.net/scp-990
SCP nickname: Dream Man
Ingame Mechanics: While you're walking down a hallway, you suddenly feel really tired and just faint. This will happen: You have a dream...

INTRO:
You're in a black void, with "him" sitting at a 1 seat couch with it's back turned to you with a small table and lamp next to it. You also can't move. SCP-990 asks if you know why you're at the SCP Foundation. He says that yes, you killed those people(the backstory), but it wasn't your fault. You made a fateful mistake, and sadly had to pay the price. You didn't know any of this would happen. No one would in "your" situation which caused you to get sent here. You aren't a bad man. You had a life that you should still be living now. And since you deserve to get out, he gives you advice:

-(This is only if you've turned off the alpha warheads) You're at Gate B, and see "him." He says SCP-682 has escaped and MTF attempt to turn on alpha warheads, but you turned them off. You see SCP-682 destroying everything, wrecking havoc. If SCP-682 was just a tiny bit hurt, they could've possibly gotten him, but since the alpha warheads didn't detonate, he got to escape. Now, this was only a vision, and you can still change it, by turning back ON the alpha warheads and escaping Gate A and living(or being stupid and attempting to escape Gate B anyways). He also tells you that if SCP-106 is in his cell, he won't distract the MTF and they will get you. This is a good thing.

or

-(This is only if you've just talked to SCP-079 about him opening Gate B if you turn the remote door control system back on) You're inside SCP-079's chamber with "him." He says that SCP-079 is lying to you, and that there IS another way to escape. If SCP-079 remains in control, nothing can go back to normal. He will let everything escape and let everything go horrible everywhere around the country. You need to keep the remote door control system off, so that SCP-079 can't control the place. The other way to escape is through Gate A, which is a farther walk, but has to be done. He also tells you that if SCP-106 is in his cell, he won't distract the MTF and they will get you. This is a good thing.

or

(If none of the above have happened) You're at the Gate A Entrance. He tells you that Gate A is your only salvation. Gate B will only lead to your doom if you manage to unlock it. You need to escape out of Gate A and ONLY Gate A. He also tells you that if SCP-106 is in his cell, he won't distract the MTF and they will get you. This is a good thing.