(as of current) No fully stable, feature-complete offline mod is publicly released due to the complexity of server-side simulation. Several experimental scripts exist on GitHub and Nexus Mods, but most require advanced technical knowledge. Development is ongoing in small modding circles.
For many players, the "story" of moving to offline mode isn't just about avoiding lag; it's about reclaiming the Exiled Lands as a personal narrative RPG. Without other players blocking the view or raiding your base, the game transforms from a competitive survival sandbox into a rich, lore-heavy scavenger hunt. Conan Exiles Offline Mode Mod