Dark and Darker underwent maintenance and had a server wipe due to challenges faced by exploiters and cheaters. All character levels, items, gold, and skills were reset. Ironmace, the game's developer, mentioned that this wipe occurred sooner than they expected due to the challenges they faced from exploiters. They have since updated the game and their services to be more robust against these adversaries. Additionally, there was a legal situation where Nexon sued the developer of Dark and Darker, alleging copyright infringement. This lawsuit might have also played a role in the game's temporary removal or challenges.