OSRS Dagannoth Kings guide 2026: the tribrid fight, ring drops and 2.7M GP/hr

The tribrid arena

The Dagannoth Kings live in a multiway combat cave deep below Waterbirth Island. All three are level 303, and they spawn in one room — which is the point: you fight all three at once, and the fight is a combat-triangle tribrid. Each king attacks with one style, is weak against the style that beats it, and has high defence against everything else.

Rex attacks with melee and is weak to magic; Prime attacks with magic and is weak to ranged; Supreme attacks with ranged and is weak to melee. The classic approach for solo players is a tribrid setup that can hit all three, rotating between the kings as they respawn. Groups can split the roles, but the solo tribrid is the standard money method.

• Location: multiway combat cave under Waterbirth Island.
• All three kings are level 303.
• Rex: melee → weak to magic.
• Prime: magic → weak to ranged.
• Supreme: ranged → weak to melee.

Ring drops and requirements

The Kings are famous for their ring drops, which are the second-best in the game for each style: Rex drops the berserker ring and warrior ring, Prime drops the seers ring and the mud battlestaff, and Supreme drops the archers ring and the Seercull. All three also drop the dragon axe and dagannoth bones. Killing all three Kings is a requirement for the Elite Fremennik Diary.

The wiki's solo tribrid guide recommends 85 Agility (boostable at 80) and the Elite Fremennik Diary, because without either, the travel to the cave eats so much time that the profit collapses — the wiki warns that without the diary or high Agility you are likely to lose money if you do not roll the berserker or archer ring.

The solo tribrid loop

The solo method is a rotation: kill the king you are strong against, switch gear and kill the next, and keep the loop tight enough that you kill two before the third respawns. The wiki notes this requires a minimum average DPS of about 5.6 across all three kings — realistically 7 to 8 when you account for looting and gear switches.

Long trips are the lever: with a saradomin godsword and lightbearer you can sustain the loop until you run low on prayer and poison protection, which keeps the per-hour rate high. The respawn timer makes it impossible to spend less than 45 seconds per kill, or 135 seconds per cycle, which caps the rate at about 26.6 kills (of all three) per hour — the wiki assumes 25 per hour with one banking trip.

• Rotation: kill the king you counter, switch, repeat.
• Minimum average DPS ≈ 5.6–8 across all three kings.
• SGS + lightbearer enables very long trips.
• Respawn caps: 45s per kill, 135s per cycle, ~26.6 kills/hr max.
• Guide assumption: 25 kills/hr per king.

Money and comparison

The wiki's solo tribrid guide estimates 2,762,922 GP per hour at 25 kills per hour per king, driven by the ring drops and dragon axes. Like every money figure it moves with GE prices and is heavily luck-dependent — several dry kills in a row pull the number down hard.

Compare DKs against the other money bosses on our PvM boss profit tier list: it sits comfortably in the mid-to-high tier for a boss that does not need a raid team, but the 85 Agility recommendation and the tribrid gear requirement make it a mid-game account's first real gear-switching test.

Combat Achievements and diary synergy

The Kings have Combat Achievement tasks covering kills with specific styles, speed kills and killing multiple kings, and the Elite Fremennik Diary requires killing all three — so doing the CA list and the diary together gives the travel speedup that makes the money method viable. Killing the Kings also counts towards the dagannoth Slayer task if you have one, stacking a second money source.

The pet drops (the three dagannoth pets) make DKs a popular pet hunt too — see our pet drop rates guide for the numbers, and the ironman guide for why the berserker ring makes this one of the first bosses iron accounts should learn.