Sounds interesting...very open.
Here's a few questions, just to give me a clear idea...
1. Since this a dream world, characters will disappear when they wake in the "real" world? Is the post all one long night, or will characters come and go?
2. Will the sexual elements be between PCs? It seems like each PC can create their own fantasies, not needing help.
3. You say that dreamers must pay. Since it is a dream world, the only currency that is useful has to come from, or be, the dreamers themselves, how does this play out in the game?
Looking forward to your thoughts,