The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
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- Lego Universe (61 members)
- Locations (34 members)
- Lore (1 member)
- Maelstrom War (1 member)
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- Planets (1 member)
- Science and Technology (1 member)
- Shadow Book (1 member)
- Song of the Swans (9 members)
- Star Trek (30 members)
- Star Wars (2 members)
- Starships (15 members)
- Stories (124 members)
- Stories by Haroldosaur (9 members)
- Stories by JamesAT13 (14 members)
- Stories by KotOS (3 members)
- Stories by Lolimon the Wise (1 member)
- Stories by Ninjago Builders (14 members)
- Stories by RedFireDog6 (2 members)
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- Template documentation (26 members)
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- The Additional Manuscripts (87 members)
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- USFI Star Falcon (7 members)
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- Wars (6 members)
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