The First Descendant, a popular online game, needs regular maintenance to keep everything running smoothly and to fix any problems players might be having.
Unlike some games with fixed maintenance schedules, The First Descendant's developer, Nexon, usually announces maintenance times on their Discord server.
This approach allows Nexon to be flexible and quickly make changes to the game, which can be both good and bad.
While it means players might not know when maintenance will happen, it also means Nexon can fix problems and add new features more quickly than some other games.