Strongest monster

The strongest monster in Old School RuneScape (based on combat level) is currently TzKal-Zuk with a combat level of 1400, in terms of bosses and all monsters. The strongest quest monster is currently Glough, with a combat level of 378.

Past record holders

 * For more information on the monsters, please see their individual pages listed above by clicking on the links.

Historical strongest monster past record holders

 * Note: This section refers to the historical context of the monsters upon their first incarnation into RuneScape.

Top 30 strongest monsters

 * {| class="wikitable" style="text-align:center;"

!Position !Monster !Level
 * 1
 * TzKal-Zuk
 * 1400
 * 2
 * Great olm
 * 1043
 * 3
 * JalTok-Jad
 * 900
 * 4
 * Corporeal Beast
 * 785
 * 5
 * Zulrah
 * 725
 * 6
 * TzTok-Jad
 * 702
 * 7
 * K'ril Tsutsaroth
 * 650
 * 8
 * General Graardor
 * 624
 * 9
 * Commander Zilyana
 * 596
 * 10
 * Kree'arra
 * 580
 * 11
 * Jal-Zek
 * 490
 * 12
 * Callisto
 * 470
 * 13
 * Venenatis
 * 464
 * 14
 * Vet'ion
 * 454
 * 15
 * Glough
 * 378
 * 16
 * Jal-Xil
 * 370
 * 17
 * Ket-Zek
 * 360
 * 18
 * Abyssal Sire
 * 350
 * 19
 * The Inadequacy
 * 343
 * 20
 * Repugnant spectre
 * 335
 * 21
 * Kalphite Queen
 * 333
 * 22
 * Skotizo
 * 321
 * 23
 * Cerberus
 * 318
 * 24
 * Brutal black dragon
 * 318
 * 25
 * Night beast
 * 310
 * 26
 * Chaos Elemental
 * 305
 * 27
 * Mithril Dragon
 * 304
 * 28
 * Dagannoth Supreme
 * 303
 * 29
 * Dagannoth Prime
 * 303
 * 30
 * Dagannoth Rex
 * 303
 * }
 * 318
 * 24
 * Brutal black dragon
 * 318
 * 25
 * Night beast
 * 310
 * 26
 * Chaos Elemental
 * 305
 * 27
 * Mithril Dragon
 * 304
 * 28
 * Dagannoth Supreme
 * 303
 * 29
 * Dagannoth Prime
 * 303
 * 30
 * Dagannoth Rex
 * 303
 * }
 * Dagannoth Prime
 * 303
 * 30
 * Dagannoth Rex
 * 303
 * }
 * }