Mastering Path of Exile 2's Expedition Endgame: A Comprehensive Guide
Path of Exile 2 introduces four major endgame events: Delirium, Breaches, Rituals, and Expeditions. This guide focuses on Expeditions, a returning mechanic from a previous league, detailing its mechanics, rewards, and the crucial Expedition Passive Skill Tree.

Expedition map nodes on the Atlas are marked with a distinctive light blue spiral icon. Guarantee Expedition encounters by using an Expedition Precursor Tablet in a completed Lost Tower slot. Once in a map, locate the marked area and interact with one of four NPCs to begin.
The core of Expeditions involves strategically placing Explosives near Markers to trigger events:
Use the Explosives UI to plan placement; avoid overlapping AoE circles for optimal farming. After placing explosives, activate the Detonator. If overwhelmed, retreat and return later; the event persists.
Runic Monsters and Excavated Chests have a chance to drop Expedition Logbooks. Use these with Dannig in your hideout to access the Expedition Pinnacle Map—a significantly larger event with more Explosives.
This map introduces Olroth, a Pinnacle Boss (indicated by a skull on the minimap). Defeating Olroth is crucial for obtaining Expedition Passive Skill Tree points (2x points per victory).

Located within the Atlas Passive Skill Tree, this system enhances Expeditions. Points are allocated to nodes offering various bonuses, increasing rewards, monster spawns, and Remnant effects.
Notable Passive Nodes:
| Notable Expedition Passive | Effect | Requirements |
|---|---|---|
| Extreme Archaeology | Reduces Explosives to 1, but boosts radius (150%), placement range (100%), and reduces enemy life (20%) | N/A |
| Disturbed Rest | 50% more Runic Monster Flags | N/A |
| Detailed Records | 50% more Logbooks, Logbooks always spawn with 3x Modifiers | Disturbed Rest |
| Timed Detonations | 50% more Artifacts, Detonation chains 50% faster | N/A |
| Legendary Battles | 50% more Rare monsters, 50% more Exotic Coinage | Timed Detonations |
| Frail Treasures | 3x more Excavated Chest Markers, but they disappear after 5 seconds | N/A |
| Weight of History | 35% boost to Remnant effects | N/A |
| Unearthed Anomalies | Remnants gain an additional Suffix and Prefix modifier | Weight of History |
Prioritize "Disturbed Rest," "Detailed Records," and "Timed Detonations" for significant reward boosts. Then consider "Weight of History," "Unearthed Anomalies," and "Legendary Battles" for further, but riskier, improvements. Avoid "Extreme Archaeology" due to its significant reduction in Explosives.

Artifacts are the primary reward, used to trade with specific vendors for gear:
| Reward | Use | Gear |
|---|---|---|
| Broken Circle Artifact | Gwennen (Weapons) | Weapons |
| Black Scythe Artifact | Tujen (Belts and Jewelry) | Belts and Jewelry |
| Order Artifact | Rog (Armor) | Armor |
| Sun Artifact | Dannig (Used to acquire other Artifacts) | Various Artifacts |
| Exotic Coinage | Refreshes vendor inventories | N/A |
Expedition Logbooks unlock the Pinnacle Map and the chance to fight Olroth, yielding substantial rewards, including unique items. Increasing map difficulty increases Olroth's spawn rate and reward quality.