The Nier Automata Game Yorha Edition Codex is the technically superior version of the game because you get the DLC, the official bug fixes, AND the removal of Denuvo's performance tax.

The original release of NieR: Automata used Denuvo Anti-Tamper DRM. Pirates and legitimate buyers alike blamed Denuvo for contributing to the game's initial stuttering and performance issues on PC.

The term CODEX implies a cracked version of the game bypassing digital storefronts like Steam.