When I think back on my time with AntiChamber, I don’t really think about the ending. I really think of the beginning up through getting the green gun. It starts leaning farther into the direction of Talos Principle or Portal at that point.
To me the game was about the experience of coming to terms with this strange new world you’ve found yourself in, and the THIS IS AN ALLEGORY wall tiles. It’s impressive how long the developer managed to keep that schtick up.