CODEX released this on — one of their last updates before the group’s inactivity in late 2020. The NFO file accompanying the release contains the usual CODEX bravado:
This specific update was the culmination of years of technical refinement. When first hit PC in late 2017, it was notorious for a rocky port—initially lacking mouse support and suffering from inconsistent performance. Nioh.Complete.Edition.Update.v1.21.06-CODEX.rar
The "Complete Edition" remains the definitive way to play the first game. Unlike the base console release, this package includes: CODEX released this on — one of their
Refining mouse and keyboard support, which was a significant point of contention at the game's initial PC launch. Nioh.Complete.Edition.Update.v1.21.06-CODEX.rar