The Deep Library is now in Early Access!
The game is playable up through chamber 100, and has two entities to uncover (three if you count the Attendants). This initial limit will help me to gague how quickly players can progress through the game, and will be used to help tune how quickly new entities will be encountered.
Here''s the roadmap for the game's full release:

The good news is, due to an initial delay of the game's release, the first additional entity (the Sentinel) is already in the game! It currently enters the library after collecting over 200 books.
Control customization is the next target, since this can come out in the current version and doesn't have to wait until the full release.
Feedback on anything in the game is appreciated; it is important during this stage so that the final version can be well-tuned. Make sure to leave feedback in the Steam discussion forums!
