Rules of Survival is ending its operations in June 27 2022. Players will no longer have access in the game servers after that.
Rules of Survival is a free to play multiplayer online Battle Royale game published by NetEase Games in November 2017.
Why is ROS shutting down?
I think the reason why ROS is shutting down is because of their Anti Cheat system, this might be one of the reasons why the game will shut down. The player base dropped when the game was full of cheaters. It made the game stressful. So players were not happy with the problem that the game was full of cheaters.