Path of Exile 2 Return of the Ancients Endgame Guide: Runes of Aldur, Atlas Rework & Runeforging

Return of the Ancients is the massive Patch 0.5.0 update for Path of Exile 2, launched on May 29, 2026, and developed by Grinding Gear Games. This update introduces extensive new content centered around the ancient Kalguuran runesmithing, including the Runeforging system, over 100 new runes, powerful crafting options, and the new Runic Ward defensive mechanic. The Return of the Ancients update also features five new endgame storylines, major overhauls to League Mechanics, and two new Ascendancy classes. This guide breaks down the Runes of Aldur league mechanic, the completely rebuilt Atlas system, how Runeforging and Runic Ward work, and where the two new Ascendancy classes sit in the current meta.

Runes of Aldur is the challenge league that shipped with patch 0.5 Return of the Ancients, live since May 29, 2026. It lives in every zone you walk through, starting in the first area of Act 1. The hook is an old Ezomyte Remnant, a stone slab carved with empty runic slots, that you finish by socketing Runes of your choice. Every area contains an ancient Remnant partially covered in symbols. In simpler terms click on the Remnant, choose one of the offered rewards, and start the encounter. Once you choose a reward, Runic enemies spawn around the Remnant empowered by the Runes you selected.

Longer Runesmithing recipes require more Runes, meaning that the summoned monsters become more powerful but also offer better rewards. In Runes of Aldur monsters summoned by the Remnant sometimes drop Verisium. This mineral can be used in Runeforging to empower your items with Ward. The Runes of Aldur league contains over 30 new monster types, over 100 Runes, Runic Alloys, Runeforging, several new Unique items, Bosses and Pinnacle Bosses, as well as dozens new Kalguuran Skills, Supports, Buffs and Runic Ward.

Runeforging is the crafting bench behind the whole league, and you unlock its first tier early in Act 1 at the Verisium Anvil run by Farrow. It splits into two jobs: forging Runic Ward onto your armour, and rebuilding weak uniques into something worth keeping. The system runs on Verisium, the currency dropped by Remnant encounters, and unlocks in stages through the campaign. Act 3 opens Unique Verisium Runeforging, a second anvil recipe aimed squarely at uniques. Plenty of the best leveling uniques pack great modifiers on a low base, so they fall off hard once the rest of your gear catches up by maps. This reforges them at a higher item level: same unique, scaled numbers, back in contention deep into endgame.

Runic Alloys are a currency line of 13 items that work like Perfect Essences — they overwrite an existing modifier on an item with a guaranteed one, so you’re not gambling the whole slot. Olroth’s Legacy is the spicy one: socket it into a unique and it destroys that item, pulling one of its modifiers out as a Legacy Rune you can slot into other gear. There are also Runes that enable meta crafting. For example Uhtred’s Sidereus socketed into Boots adds special Chronomancy modifiers to the pool of possible outcomes when crafting that item. Uhtred’s Sidereus allows the item to roll the Chronomancy modifiers.

You add Runic Ward to armour through Runeforging. Armour below level 55 gains it for free, no stats sacrificed. Above level 55 the piece trades some of its regular defences for Ward, so it’s a build choice, not a freebie. Ward is a new type of resource that protects you from dying. Unlike Energy Shield which protects your Life pool, Ward takes damage after all of your Life is lost and you die when your Ward reaches 0. This makes it a last-chance buffer rather than a first-layer shield.

Ward does a second job that makes it more than extra health: it doubles as a resource. Kalguuran skills and supports spend Runic Ward instead of mana, so the same pool that eats hits also fuels your new gems. That pulls offence and defence onto one bar. Stack Ward and its regen and you buy survivability and casting headroom at once, which is why the whole league leans on it so hard. Added 8 Kalguuran Supports that can be crafted from remnants: Concussive Runes, Fist of Kalguur, Healing Runes, Kalguuran Conviction, Runeforged Blades, Runic Extraction, Runic Infusion and Scouring Flame.

For more on general currency farming strategies and which maps to prioritize, check the PoE league starter guide for efficient Atlas pathing.

The expansion entirely restructures the Path of Exile 2 endgame, introducing over 30 new areas to explore on the Atlas (ranging from the deserts of Maraketh to lava-filled dungeons), a completely reworked Atlas Tree with multi-choice nodes, and 5 New Endgame Storylines. The new Atlas Passive Tree has over 300 nodes and over 200 allocable passive points. Every node can eventually be allocated on a single character, so atlas respeccing has been removed as a concept. Flexibility comes from multi-choice nodes — many nodes offer two or three options swappable at any time without cost. League-start choices matter less because the end-state is full allocation; the variable that matters most is which multi-choice options you flip per farming session.

Each endgame mechanic now has a fixed location on the Atlas rather than spawning randomly. Endgame content can now be found in designated areas on the Atlas. So, if you just want to complete Breach Maps, you can simply head towards the southern portion of the Atlas. Each one ties directly into boss access, progression paths, and crafting systems. Following them is the intended way to experience the reworked endgame. Each storyline introduces a mechanic from a previous league alongside a dedicated crafting system.

Five New Endgame Storylines

Each storyline features dedicated questlines, hubs, and unique mechanics: The Origins of Divinity serves as a central pillar of the endgame overhaul, set against the backdrop of a Wraeclast ravaged by creeping corruption. At the heart of the Fortress lies a climactic confrontation with a mighty pinnacle boss — the First Edict. The five are: Tangmazu, the Raven Trickster storyline, accessed through fog-covered areas in the Delirium content · Keepers of the Flame storyline, where you help Ailith’s monks fight wave-based Breach encounters · King in the Mist storyline, centered on freeing a woman’s spirit through Ritual content · Atlas Masters storyline, tied to the new Masters of the Atlas progression system · Rog’s Missing Wife storyline, sending you across a procedurally generated ocean in the Expedition overhaul

Reworked Expedition: Ocean Exploration

Expedition has been transformed into a full ocean exploration system. Using Logbooks, you scout procedurally generated routes that reveal islands with basic Expeditions, Greater Expeditions, boss encounters, and eventually a new Pinnacle Boss. The storyline follows Rog searching for his missing wife Gwennen. Bosses like Medved and Uhtred serve as milestones within this structure. There is now a hub area “The Ruins of Kingsmarch” for The Runes of Aldur to the south-east of your starting location on the Atlas. The Logbook mechanic has been changed into an Ocean Exploring mechanic. Using logbooks now unveils a section of the ocean with a variety of islands to explore.

There are 2 new ascendancies coming to Path of Exile 2 with Return of the Ancients. The Spiritwalker Ascendancy for the Huntress stalks through dark forests with animal companions by her side. Meanwhile, if you prefer to talk with your fists, consider the Monk’s Martial Artist Ascendancy.

Spiritwalker (Huntress)

The Spirit Walker (Huntress): Bound to the wilds, this class calls upon Azmerian animal spirits to answer her will. The Spirit Walker can infuse the power of the Stag (for stampeding attacks), the Owl (for enhanced projectiles), and the Bear (to summon a giant companion). Unlocking the “Sacred Wisps” power combines all three for massive buffs. Through their guidance, she may subdue even the most formidable Beast Bosses across Wraeclast, binding them in spirit to fight beside her as trusted companions. When this node is taken, it gives you the ability to capture unique beasts, which includes bosses! Some of the bosses that you can tame include the Mighty Silverfist (from the Jungle Ruins in Act 3), Xyclucian the Chimera (from the Chimeral Wetlands in Act 3), and Rakkar, the Frozen Talon (from the Glacial Tarn in Act 4).

Martial Artist (Monk)

The Martial Artist (Monk): After decades of training, the Martial Artist has become a master of illusions and internal spiritual energy. Empowered by the runes socketed into his body via runic tattoos on his meridians, this class creates powerful illusions of himself, summons illusory shatterable bells to aid him, and excels at using his hands as weapons. Runic tattoos that let you socket runes directly into your character rather than into gear, giving the Ascendancy a mechanical identity that no other class shares. The Martial Artist’s runic tattoo system means your character itself becomes part of your crafting build. Plan your rune choices before committing, since the interaction between tattoo runes and Kalguuran skills can open up unconventional build paths.

Path of Exile 2 endgame bosses require active mechanical execution and cannot simply be burst down with raw damage. Boss arenas feature distinct phases with choreographed attack patterns, invulnerability windows, and environmental hazards that force positional play. One-button builds that trivialize content through sheer DPS do not exist in PoE 2; instead, the endgame rewards combo-driven skill interactions, layered defenses, and deliberate resource management.

Skill gem design in PoE 2 encourages multi-skill rotations. Kalguuran gems, for example, consume Runic Ward rather than mana, creating a shared resource pool between offense and defense. Players must balance defensive uptime with offensive burst windows, and cannot simply spam a single ability through every encounter. This shift from the one-button meta of PoE 1 to combo-based gameplay applies across all endgame content, from map bosses to Pinnacle fights like the Arbiter of Divinity.

The Atlas itself is structured rather than randomized. The Atlas system, which has been one of the most criticized aspects of Path of Exile 2’s Early Access, receives a ground-up redesign. Instead of a sprawling, loosely connected web, the endgame now centers around a massive Fortress that rises from underground, built around clear progression paths and structured storylines. Each major league mechanic (Breach, Delirium, Ritual, Expedition, Abyss) has a dedicated starting zone with its own quest chain leading to a pinnacle boss fight. This gives clearer goals and reduces the aimless map-chaining burnout that plagued earlier versions of PoE 2.

For more on optimized Atlas progression routes and mechanics, see the PoE mechanics guide.

You Can Skip Runeforging and Still Clear Endgame

Technically true for low-tier maps, but false for Pinnacle content. Runic Ward is not optional once you hit red maps. Boss encounters like the Arbiter of Divinity have damage spikes that will kill you through capped resistances and a full life pool, and Runic Ward is the only defensive layer that protects you after your life depletes. Skipping Verisium Runeforging on your armour means skipping the cheat-death buffer that keeps you alive during oneshot mechanics.

You Need to Respec Your Atlas Tree Constantly

The new Atlas Passive Tree has over 300 nodes and over 200 allocable passive points. Every node can eventually be allocated on a single character, so atlas respeccing has been removed as a concept. The multi-choice nodes let you flip between options without cost, so switching from Breach farming to Expedition farming is instant. Early Atlas choices matter far less than in PoE 1, since full allocation is the long-term goal.

The New Ascendancies Are Mandatory for Endgame

Not true. Spiritwalker and Martial Artist are strong, but existing Ascendancy classes remain competitive. The new Atlas Tree, Runic Ward, and Kalguuran skills are accessible to all classes, so build diversity remains wide. Spiritwalker’s beast-taming is powerful for minion builds, and Martial Artist’s runic tattoos open new crafting paths, but neither is required to clear the Fortress or Pinnacle bosses.