The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Materials:Filters (12 members)
- Materials:PBS (27 members)
- Materials:Skybox (2 members)
- Materials:Special (4 members)
- Materials:Text (1 member)
- Materials:UI (1 member)
- Materials:UI:Circle Segment (1 member)
- Materials:UI:Text (1 member)
- Materials:Unlit (10 members)
- Materials:Volume (2 members)
- Mbox templates (1 member)
- Memes (1 member)
- NodeMenu (0 members)
- Noindexed pages (6 members)
- Obsolete (5 members)
- Official Worlds (5 members)
- Pages using duplicate arguments in template calls (2 members)
- Pages with broken file links (392 members)
- Pages with ignored display titles (2 members)
- Pages with script errors (3 members)
- Pages with short description (8 members)
- Pages with syntax highlighting errors (2 members)
- PlaybackStateDriver (0 members)
- ProtoFlux (38 members)
- ProtoFlux:Actions (6 members)
- ProtoFlux:Actions:Indirect (4 members)
- ProtoFlux:All (1,006 members)
- ProtoFlux:Assets (15 members)
- ProtoFlux:Audio (2 members)
- ProtoFlux:Avatar (0 members)
- ProtoFlux:Avatars (10 members)
- ProtoFlux:Avatars:Anchors (7 members)
- ProtoFlux:Avatars:BodyNodes (11 members)
- ProtoFlux:Casts (1 member)
- ProtoFlux:Colors (35 members)
- ProtoFlux:Colors:Channels (52 members)
- ProtoFlux:Colors:Packing (4 members)
- ProtoFlux:Components (3 members)
- ProtoFlux:Core (13 members)
- ProtoFlux:Core:Casts (2 members)
- ProtoFlux:Debug (8 members)
- ProtoFlux:Devices (6 members)
- ProtoFlux:Devices:Controllers (7 members)
- ProtoFlux:Devices:Display (3 members)
- ProtoFlux:Devices:Haptics (2 members)
- ProtoFlux:Devices:Keyboard (4 members)
- ProtoFlux:Devices:Mouse (15 members)
- ProtoFlux:Enums (5 members)
- ProtoFlux:Experimental (3 members)
- ProtoFlux:Flow (31 members)