Multiplayer/Co-Op & Frictional Games? NO!!!

[pedritti]

Unfortunately, the atmosphere would be so easily ruined by playing with another person who didn't take the game seriously. Assuming we're talking about two player co-op, I'd suggest that players were each given a responsibility, and had to rely on each other to survive. Perhaps, for example, one player was responsible for providing light, whilst the other was provided with a map, so to navigate them through these dark mazes and corridors. There would be more incentive to stay together, and if separated, players would panic and be forced to survive on their own.

As previously mentioned though, Co-op changes everything, and probably wouldn't work with Amnesia. The game would have to rebuilt from scratch, and I'd imagine it would be very hard to keep things scary, especially if players used microphones. Listening to a mate scream in terror is hilarious, and not frightening in any way.

That depends... If he screams and says its comming oh shit what the fuck?
This phrase may create a horrible fear in you because you anticipate something horrible and there is nothing scarier to a person than that persons own imagination due to the fact that we all imagine the thing that scares us the most. For a few seconds you will be scared beyond your wits. Maybe you won't even get to see the monster due to your instant turn and run but you get what i mean.

In some situations it could work