The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- ??? AI NPCs (0 members)
- Abyss NPCs (25 members)
- Abyssal Jewel AI NPCs (1 member)
- Accessories (2 members)
- Accessory items (338 members)
- Acid Eel AI NPCs (1 member)
- Acid Rain NPCs (14 members)
- Acid element weapons (8 members)
- Acid resistant NPCs (1 member)
- Acidsighter AI NPCs (1 member)
- Acquired through (1 member)
- Addon content (3 members)
- Adult Eidolon Wyrm AI NPCs (1 member)
- Aether NPCs (1 member)
- Aether Valkyrie AI NPCs (1 member)
- Ally NPCs (2 members)
- Ammunition items (49 members)
- Anahita AI NPCs (1 member)
- Anahita Clone AI NPCs (1 member)
- Ancient Doomsayer AI NPCs (1 member)
- Ancient Vision AI NPCs (2 members)
- Angery Flame AI NPCs (1 member)
- Angry Dog AI NPCs (1 member)
- Angry Nimbus AI NPCs (1 member)
- Anthozoan Crab AI NPCs (1 member)
- Antlion AI NPCs (0 members)
- Apotheosis and Friends addon content (11 members)
- Aquatic Aberration AI NPCs (1 member)
- Aquatic NPCs (56 members)
- Aquatic Parasite AI NPCs (1 member)
- Aquatic Scourge AI NPCs (1 member)
- Aquatic Seeker AI NPCs (1 member)
- Aquatic Urchin AI NPCs (1 member)
- Aries NPCs (0 members)
- Armor items (61 members)
- Armored Digger AI NPCs (1 member)
- Arrows (9 members)
- Arsenal Lab NPCs (1 member)
- Arsenal Labs NPCs (1 member)
- Article info requests (13 members)
- Article management templates (3 members)
- Astigmageddon AI NPCs (1 member)
- Astrageldon Slime AI NPCs (1 member)
- Astral Head AI NPCs (1 member)
- Astral Infection NPCs (18 members)
- Astral Probe AI NPCs (1 member)
- Astralachnea AI NPCs (1 member)
- Astralachnea NPCs (0 members)
- Astrum Aureus AI NPCs (1 member)
- Astrum Deus AI NPCs (1 member)