The "CODEX" tag in your query refers to a specific scene release by the group , who packaged this version of the game for various distribution platforms. 📜 Key Content Additions

Five new music tracks and thousands of new voice lines were added to flesh out character subplots. 📖 The Codex (Book of Shadows)

It is gifted by Achilles . You must complete at least 3-6 escape attempts and speak to him at the House of Hades.

Rebalanced costs and effects for several talents to better fit the full game's progression.

The full conclusion to Zagreus’s story was added, including new narrative events and a final epilogue.