oos Console Command
Documentation and examples for the oos command in Europa Universalis IV.
oos
Debug
Forces the client out of sync
Overview
Forces the multiplayer client out of sync, a developer tool for testing out-of-sync detection and recovery.
Frequently asked questions
How do you use the oos command in EU4?
Open the console with the grave (`) key while in-game, type oos, then press Enter. The console can't be opened in Ironman games.
What does the oos command do?
Forces the client out of sync.
Does the oos command require any DLC?
No. oos is part of the base game and works without any DLC.
Can you use oos in Ironman mode?
No. The console is disabled in Ironman games, so oos can't be entered. Because achievements are only earned in Ironman, console commands like oos can't be used to unlock them.