Monsters
- Sheldon
- Shield
- Shifter
- Shifter
- Shifter107
- Shifter53
- Shifter58
- Shifter78
- Shifter93
- Shipyard worker1
- Shipyard worker2
- Shocking black dragon
- Shrimp
- Shrine Maiden Elei
- Shrine Maiden EleiNormal mode
- Shrine Maiden EleiStory mode
- Shul the Molten
- Sick YakamaruSick
- Sickly airutPoisoned
- Sickly Airut
- Sickly AirutNemi Forest (Melee)
- Sickly AirutNemi Forest (Ranged)
- Siege engine
- Sigmund
- SigmundAnother Slice of H.A.M.
- SigmundAnother Slice of H.A.M. (immune to poison)
- SigmundDeath to the Dorgeshuun (initial)
- SigmundDeath to the Dorgeshuun (Magic)
- SigmundDeath to the Dorgeshuun (Melee)
- SigmundDeath to the Dorgeshuun (Ranged)
- SigmundDominion Tower
- SigmundDominion Tower (immune to poison)
- SigmundDominion Tower (level 70)
- SigmundThe Chosen Commander
- Silver Cog Director
- Silverquill, the Dreadhog
- Silverquill, the DreadhogActive
- Silverquill, the DreadhogCurled
- Sinister fragment
- Sinister fragmentNormal mode (duo)
- Sinister fragmentNormal mode (solo)
- Sinister fragmentNormal mode (trio)
- Sinister fragmentStory mode (duo)
- Sinister fragmentStory mode (solo)
- Sinister fragmentStory mode (trio)
- Sir Amik Varze
- Sir Amik Varze
- Sir BedivereKing's Ransom