More from the Free game files: Time Fcuk
A friend told me about this one. It reminds me a lot of Eversion.
It starts off with you discovering a strange black box. Someone comes out of it; it turns out to be YOU, from twenty minutes into the future! They urge you to enter the strange realm of the box, and finally throw you inside...
You find yourself trapped within a series of peculiar rooms. There appears to be no other way out but to head for the portal, so -
The aim: get through each room by escaping through the portal. However, the rooms have a strange "multi-layer" quality - you can flip through each layer (and change the layout of the room), and thus open up new pathways to the exit.
There are other objects, such as blocks (used as movable platforms, and also to destroy walls), keys (if present, you have to collect them all to activate the portal), portals, gravity switches... basic puzzle fare, really.
But the really weird part is the text box on the right... in it, messages arrive from yourself, but from rooms you haven't been to yet. To begin with, the messages offer clues to your current room - that is, to begin with. Your journey in the box does tend to... um... alter you, somewhat. And the messages start to turn downright creepy.
Like Eversion, this game has a Bad and a Good Ending. See if you can find them both! And good luck!