Even for this being a bare-bones, there are some major issues that I feel could have been addressed to make this more enjoyably. The darkness was simply TOO dark. It's one thing for atmosphere, but this just made it hard to see where to go. The keycards were not only too hard to see in some cases (why the game got accidentally DQ'd before), but there is no indication that you picked one up or activated anything. You're just trusting that it worked as a player. Also, aside from a few signs in the maze itself, there is ZERO direction for the player. Even just an objectives would be nice. And what little story there was was partially obscured by blood and hard to make out, making it even more confusing.
I would NOT call this beta, actually. This is just a tech demo and not a great one at that.