The Seekers of the Storm final boss, atop Prime Meridian: three phases and a shrinking arena.

| Type | Final boss |
| Expansion | Seekers of the Storm |
| Health | 1000 (+300 per level) |
| Base damage | 18 (+3.6 per level) |
| Armour | 23 |
| Where it spawns | At the top of Prime Meridian, after the Path of the Colossus. |
Slams his club and opens 5 columns that move outwards for 7 s.
How to dodge it: Sprint sideways: almost all his close-range moves are dodged by sprinting.
He dashes at you and follows up with the slam.
How to dodge it: Do not get cornered at the edge.
Throws 9 projectiles in a diamond that inflict Lunar Ruin.
How to dodge it: From far away most of them miss.
Phase 2: 7 pillars fall that work as cover, but after 21 s they glow and explode.
How to dodge it: Use them as cover and step away when they start to glow.
Phases 2 and 3: he leaps, and the giant statue in the background tracks you with a laser for 9 s.
How to dodge it: Get behind a pillar or wall: it is the only thing that stops it.
Phase 3: he leaps with the club and sends a lightning bolt that disables your skills for 420 s, plus 4 orbs that spin out and explode.
How to dodge it: If it hits you, go to an Aurelionite Geode: it removes it. Save them for this (they take 30 s to come back).
One Aurelionite Fragment per player: pick one of three items (green or red; with the seed, boss or red). Then the Shrine of Rebirth: continue to a stage 4 or end the run.
One Aurelionite Fragment per player: pick one of three items (green or red; with the seed, boss or red). Then the Shrine of Rebirth: continue to a stage 4 or end the run.
At the top of Prime Meridian, after the Path of the Colossus.
1000 base health, plus 300 per enemy level. Armour: 23.
Sources: the Risk of Rain 2 wiki (each boss page and Module:Enemies/Data, read on 31 October 2026) and the game's own text. The explanations are our own. Icons: Risk of Rain 2 (Hopoo Games / Gearbox).