Although each realm's classes differ in specific abilities,Dark Age of Camelot classes are broken down into the four common RPG archetypes: warriors, spell casters, rogues, and priests. Hybrid classes, which combine skills from any two of the archtypes, also exist in all 3 realms. DAOC Platinum 's classes are balanced at the RvR level instead of in direct comparison to the other realms' equivalent classes. DAoC classes are very rigid with specific roles, play styles, and specialization point allocations.

Albion: Armsman, Cabalist, Cleric, Friar, Heretic, Infiltrator, Mauler, Mercenary, Minstrel, Necromancer, Paladin, Reaver, Scout, Sorcerer, Theurgist, and Wizard.

Hibernia: Animist, Bainshee, Bard, Blademaster, Champion, Druid, Eldritch, Enchanter, Hero, Mauler, Mentalist, Nightshade, Ranger, Warden, Valewalker, and Vampiir.

Midgard: Berserker, Bonedancer, Healer, Hunter, Mauler, Runemaster, Savage, Shadowblade, Shaman, Skald, Spiritmaster, Thane, Valkyrie, Warlock, and Warrior.

The tank classes are pure close ranged fighters and have virtually no ability to deal ranged damage, but they wear the heaviest armor and have abilities to reduce the effectiveness of crowd control spells used on them. Melee classes in DAOC Platinum are divided into heavy and light tanks. Heavy tanks wear the heaviest armor in the game and often specialize in high damage two handed weapons for RvR or the one handed weapons and shield for PvE. Light tanks have higher damage output, dual wield weapons, and wear the second heaviest type of armor. Light tanks also have extra abilities to avoid crowd control in RvR. Heavy tanks include the Armsman, Hero, and Warrior. Light tanks are the Mercenary, Blademaster, and Berserker.

Casters have the highest damage output in DAOC Platinum . Casters have the lowest hit points and lowest level of armor in the game, but every caster has a form of crowd control spell to restrain enemies. Their spells can be easily interrupted and they are targeted quickly in RvR. Casters usually specialize in either the use of pets, damage over time spells, ranged direct damage spells, or point blank area affect spells. The caster classes include the Wizard, Sorcerer, Necromancer, Eldrich, Enchanter, Spiritmaster, Runemaster, Warlock, and Bonedancer.