[SP] Psychosomnium
I am a fan of these types of art-house games, however yours is really dark, too dark in fact to even play successfully, almost pitch black, half the time I could not see in front of my face and is probably the reason I did not finish it. You have a cool idea, however, it needs work. I hear you are updating the lighting which is probably the best thing you could do. I would also think about adding a bit more direction for less frustration.
speaking of art-house games, have you tried any of these?
tedium (very much like Everyday the same dream)
dear esther (becoming standalone game later this year)
radiator series
increpare a whole bunch of art games
Hey Yoshermon, wouldn't you like something as that Unique Styled Map?
Unique Styled Map
What do you mean by "less frustration", magicrat? Or, more specifically, which parts frustrated you?
And I did try that Unique Styled Map, xdiesp. It has a pretty cool concept, but there's not a whole ton that I can learn to apply to my own map aside from making it brighter.
Depending on how bad of a case of procrastination I may or may not get, I should have the map updated either later today or tomorrow.
I have all the colored lights except yellow 
Any hints for yellow? As far as I can tell, there is nothing else to find in the fizzler maze. And the "office" room just blinks when I walk into it, and leads me back to the start.
Excellent work ! Good use of linked_portals also 
I never liked those windows, so deep underground with their sterile, cold "artificial daylight". One of these days, I would think as I passed by. If I only had a hammer...
That's the door you come out of when you first fly into the maze. I'm going to fix that too.
Ideally, as shown above, I would love to have some words appear onscreen in various places giving the character's thoughts as you play through his dream. They would definitely help lower the frustration factor and give the level a bit more meaning, I'd imagine. Unfortunately though, I haven't figured out how to get game_text to work and people say that it's finicky anyway, so I'm a bit hesitant to experiment with it. If someone has a (preferably simple or easy to implement) way to show text on screen via a trigger or the like, I'd really like to know.
Also, where in my map is it too dark? Is it just the maze room, or is there anywhere else that caused you to go mat_fullbright?
This map made ??me insane... i finally hit it 
It's a nice map, but I really think it's too dark
The fizzler maze is awesome! 
Why thank you!
But again, I must know which parts are too dark. The maze I have covered, but is there anywhere else that's annoying or hard to stand being in?
Can't remember: was the all-colours room dark, in the beginning? If so, that's another one: but probably, they mostly mean the maze - remember that you haven't released the updated version of it, yet. Also, I didn't mention yet that the all-colours room gets progressively heavier performance-wise, as coloured lights increase.
Idea: you could have the player wake up on the bed at start, and then go to sleep at the end.