M2Kings is a high-difficulty PvM server with a max level of 120, where the power of the kingdom lies in the hands of its king. Each kingdom is ruled by a player-elected or battle-proven king who has the authority to control key game mechanics like experience rates, drop rates, and item upgrade success chances. Kings are chosen initially by players, but every month, a tournament allows challengers to battle for the throne. Victory through combat or strategic voting is the path to rule.
Players in M2Kings can rise through ranks, unlocking special bonuses based on their achievements and dedication to the kingdom. A unique plant collection system lets players improve their drop rates, experience, and other stats by contributing to the king. Failure to complete ranking missions results in traitor status, which comes with negative effects.