The base CODEX release is for offline play. To enable multiplayer, users often apply a separate "Online-Fix" (often by 0xdeadc0de ) which involves copying files into the game directory and running Steam in the background.
Scene group crack (CODEX). Multi-part RAR files require all parts (e.g., part01, part02, etc.) to be in the same folder to extract successfully. Installation & Technical Details Monster.Hunter.World.v15.11.01-CODEX.part04.rar
15.11.01 (corresponds to the final major update for Monster Hunter: World ). Content: Includes the base game and the Iceborne expansion. The base CODEX release is for offline play