The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Size 4 shield generators (0 members)
- Size 4 ship weapons (12 members)
- Size 5 missile racks (4 members)
- Size 5 ship weapons (13 members)
- Size 5 torpedoes (4 members)
- Size 6 missile racks (4 members)
- Size 6 ship weapons (11 members)
- Size 7 ship weapons (3 members)
- Size 7 torpedoes (1 member)
- Size 8 ship weapons (0 members)
- Size 9 ship weapons (0 members)
- Size 9 torpedoes (3 members)
- Sledge Mass Driver Cannon images (1 member)
- Small (4 members)
- Small - Bidirectional (5 members)
- Small ships (64 members)
- Smog Planet (23 members)
- Smoltz Larger images (1 member)
- Snagglestick images (3 members)
- Snake Pit images (2 members)
- Snarling Vanduul Helmet images (5 members)
- Sniper rifles (6 members)
- Snub Fighters (1 member)
- Snub ships (30 members)
- Software industry (1 member)
- Sol System (46 members)
- Something Every Tuesday (0 members)
- Space Stations (85 members)
- Space Suits (2 members)
- Space Vehicles (0 members)
- Space Whale (2 members)
- Space station images (5 members)
- Space stations (1 member)
- Spaceport images (1 member)
- Spaceports (4 members)
- Spar Van Miles (2 members)
- Spartan images (18 members)
- Speakers (0 members)
- Species (38 members)
- Spectrum Dispatch (31 members)
- Spectrum Patch Notes (12 members)
- Spectrum Spectator (0 members)
- Spectrum broadcast (3 members)
- Spider (1 member)
- Spirit series (4 members)
- Squadron 42 (1 member)
- Squadron 42 images (1 member)
- Squadron Insignias (7 members)
- Stanton AO Missions (26 members)
- Stanton Images (1 member)