Seal Online is mostly a point-and-click MMORPG; movement, combat, and many other commands are all controlled by mouse, though the combo system is done with the A, S, and D keys. The player can choose from 7 different classes to start with.
Seal Online's travel system uses a method called 'Warp Gates'. These gates, located in various towns, allow the player to move to other maps. Players may use scrolls, set revive points, use the Wagon Driver NPC, or just type out a Teleport command for a small fee to warp to different maps.