In December, Moon Studios announced the start of open beta testing for co-op in No Rest for the Wicked.
An experimental branch has been opened for Steam users: players will be able to test the co-op before the full release of the mode — it is scheduled to launch on January 22, 2026.
The No Rest for the Wicked co-op OBT will run until December 22. Instructions on how to sign up for the test are available in the game's Steam community.