The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Specialty swords (6 members)
- Specialty weapons (6 members)
- Spectral undead creatures (23 members)
- Speed drakes (15 members)
- Spell target abilities (25 members)
- Spell target skills (10 members)
- Spell target spells (2 members)
- Spells (168 members)
- Spiders (13 members)
- Spigas (6 members)
- Spiritual effects (66 members)
- Spiritually powered abilities (65 members)
- Spiritually powered skills (21 members)
- Spiritually powered spells (4 members)
- Standard abilities (427 members)
- Stats (8 members)
- Stealing effects (8 members)
- Stingers (5 members)
- Stinging equipment (5 members)
- Storm Mage class abilities (32 members)
- Storm Mage class skills (16 members)
- Storm Mage class spells (17 members)
- Storm element abilities (56 members)
- Storm element skills (4 members)
- Storm element spells (34 members)
- Storm elemental creatures (7 members)
- Strike delivery abilities (31 members)
- Strike delivery skills (11 members)
- Strike delivery spells (2 members)
- Summoning effects (1 member)
- Supplies (17 members)
- Survivalist tradecrafts (7 members)
- Sustained abilities (50 members)
- Sustained skills (12 members)
- Sustained spells (27 members)
- Swords (8 members)
- Swordsman fighting style weapons (6 members)
- Tails (12 members)
- Target abilities (8 members)
- Target skills (6 members)
- Target spells (6 members)
- Targets (8 members)
- Templates (1 member)
- Temporal effects (14 members)
- Tendrils (5 members)
- Tentacles (6 members)
- Terrorizing equipment (1 member)
- Text templates (3 members)
- Thief class abilities (19 members)
- Thief class skills (18 members)