This optional DLC is a great way to show your support and get something nice in return—the lore of Sigh of the Abyss collected in a single .pdf! Includes chronologically ordered codex entries with development notes.

It's recommended to read the lorebook  after completing the game at least once.

From the Steam library, right-click the game and select Manage > Browse local files.

A PDF reader is required to open the lorebook.