Leveling in Crusaders of Light is largely dependent on daily quests, some of the main ones listed here: -
WARNING for OLD servers: No matter what you do if you are new and are about to level up to level 44, DO NOT DO IT.
Stay at level 43 to level your path skill with the 50% XP bonus that is available up until level 43 or the 100% XP bonus up until level 40!!!!
This can be checked at the small green arrow next to the player protrait. The bonus is called 'Karen City'.
For more information, please look at the experience page.
List of leveling guides: