When Maplestory initially launched back in 2003 (that's 20 years online, and counting), only four different classes were available. These classes, known as Explorers, were Warrior, Magician, Thief, and Archer. On top of that, there were different branches of jobs for advancement that essentially functioned as the players 'Job'. Warriors had Heroes, Paladins, and Dark Knight (with all the advancements in between). Each Job had a multitude of advancements between the starting class and the ending class. Originally there were only three 'Jobs' for players to advance to, but as time went on, new classes were added, the max level was raised, and more advancements were added. Currently, as of February 2023, most classes can reach a '5th Job'.