The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- "Snowed Inn" Resort characters (1 member)
- Abbreviation templates (5 members)
- Achievements (1 member)
- Agricultural Center creatures (5 members)
- Agricultural center (5 members)
- Agricultural center (Wasteland 2) (2 members)
- Agricultural center characters (Wasteland) (2 members)
- Agricultural center characters (Wasteland 2) (18 members)
- Agricultural center locations (5 members)
- Agricultural center quests (Wasteland 2) (8 members)
- Ambush site characters (12 members)
- Ammunition (8 members)
- Angel Oracle (1 member)
- Angel Oracle characters (26 members)
- Animals (3 members)
- Arapaho Caravan characters (3 members)
- Arapaho characters (4 members)
- Arizona (1 member)
- Arizona random encounter creatures (26 members)
- Armor (11 members)
- Armor modifications (2 members)
- Aspen characters (3 members)
- Atchison camp characters (7 members)
- Atchisons (4 members)
- Attention required (2 members)
- Attention required (Fountain of Dreams) (4 members)
- Attention required (Wasteland) (15 members)
- Attention required (Wasteland 2) (15 members)
- Attention required (Wasteland 3) (4 members)
- Attention required by game (4 members)
- Attention required by issue (18 members)
- Attributes (7 members)
- Auxiliary templates (14 members)
- Backpack slot clothing (14 members)
- Baldwin Hills characters (0 members)
- Base Cochise (5 members)
- Base Cochise Locations (1 member)
- Bastion of Faith (1 member)
- Bastion of Faith characters (17 members)
- Battle of Steeltown (8 members)
- Battle of Steeltown armor (24 members)
- Battle of Steeltown armor sets (8 members)
- Battle of Steeltown cassette tapes (7 members)
- Battle of Steeltown character images (47 members)
- Battle of Steeltown characters (62 members)
- Battle of Steeltown characters by faction (2 members)
- Battle of Steeltown characters by location (4 members)
- Battle of Steeltown concept art (10 members)
- Battle of Steeltown consumables (8 members)
- Battle of Steeltown crafting components (2 members)