The current release – Part 1 – contains the first couple chapters from the game up to and including Kleiner’s Lab, spanning a total of 11 maps.
Based primarily on concepts and documents laid out in the book Half-Life 2: Raising The Bar, Dark Interval is an attempt to recreate the game from the ground up as it was originally envisioned, with all-new levels and a somewhat more overtly cyberpunk atmosphere thanks to Combine technology getting much more time in the limelight.
