I expected a far bigger game, given the premise.
What I have mistaken for a prologue is indeed half the game. That half is specially well crafted and intriguing... then the game simply breaks. It starts behaving strangely (poor testing of the second half?) and becoming the more and more aimless. And when I started to think "what's happening here?", the game is over.
Left a bitter taste. This could have been a nice piece, if only it didn't wander away so soon.