Base Level, or what is often shortened to "BLv", "BaseLV", "LV", "LVL", or simply referred to as "level" of a Character, is the main and broadest measurement of Character development in the Ragnarok Game.
Whenever a Character gains a certain number of Base Experience, their Base Level increases, and the Character is awarded a certain number of Status Points, which can be used to increase their stats. Each Base Level requires a large number of Base Experience points, which results in a very sharp progression curve that sets RO apart from many other MMORPG games.
You can get Point Experience Base Level through: Completing Main Missions, Sub Missions, Defeating monsters and MVPs.