Character level is one of the core concepts behind most roleplaying games, and it has been at the core of D&D from the very beginning as an indication of a character’s abilities, power, and influence in the world. Back in Original D&D they were so distinguished that each level had a different name depending on your class – a Fighter became a Veteran, Warrior, Swordsman, Hero, and eventually Myrmidon, Champion, and finally a Lord.