The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Abyss Chaser Skills (11 members)
- Access Quests (29 members)
- Accessory (125 members)
- Acolyte Skills (29 members)
- Aesir (3 members)
- Alberta Quests (61 members)
- Alchemist Skills (40 members)
- Aldebaran Quests (6 members)
- Alter Skills (10 members)
- Ammunition (33 members)
- Arch Mage Skills (18 members)
- Archbishop Skills (24 members)
- Archer Skills (19 members)
- Armor (83 members)
- Article management templates (1 member)
- Assassin Cross Skills (19 members)
- Assassin Skills (23 members)
- Audio (18 members)
- Axe (18 members)
- Bard Skills (34 members)
- Battle Job (94 members)
- Beastmaster Skills (17 members)
- Blacksmith Skills (29 members)
- Blog posts (117 members)
- Book (15 members)
- Bouquet Village Quests (74 members)
- Bow (22 members)
- Browse (3 members)
- Candidates for deletion (1 member)
- Candidates for speedy deletion (0 members)
- Cardinal Skills (16 members)
- Cards (37 members)
- Carrot Village Quests (68 members)
- Champion Skills (29 members)
- Characters (352 members)
- Citation needed (0 members)
- Citations needed (3 members)
- Class-Specific RO2 Quests (75 members)
- Class-Specific RO Quests (92 members)
- Claw (15 members)
- Cleanup (0 members)
- Clown Skills (41 members)
- Community (11 members)
- Comodo Quests (8 members)
- Concept Art (667 members)
- Consumables (38 members)
- Content (11 members)
- Copyright templates (11 members)
- Corporations and Private Companies (50 members)
- Costume (105 members)