The Citadel on Source engine in progress

The original game is The Citadel. The original game author is Doekuramori. @doekuramori3496 This is a project that trying to transplant The Citadel to Source engine, as a map.(or map series) What you see in this video is a demo, currently in progress. It will be a workshop map on Half-Life 2’s mod Entropy: Zero 2.