Path of Exile 2 0.5.3: More Rewarding Expeditions and a Delirium System That Finally Works

Path of Exile 2 patch 0.5.3 is now live, delivering one of the most sweeping endgame overhauls since the game launched in Early Access. According to the patch notes published on Steam, the changes span Aldur's Rune Expeditions, the Delirium system, and several general Atlas mechanics, with the stated goal of ensuring every content type offers clearer risk-and-reward opportunities.

Aldur's Rune Expeditions, Redesigned from the Ground Up

The Grand Expedition system receives the most extensive rework. Going forward, the maximum number of Remnants scales with Waystone level, reaching its peak in level 15 or higher maps. Basic weapon and armor chests have been removed entirely, replaced by Currency, Unique Item, and Waystone chests, along with mysterious chests and Trinket chests — both carrying a high Rarity bonus. The cap on available Explosives for cutting the encounter short drops from 20 to 15, tightening decision-making and adding tactical tension. Boss Styrn, Fallen Knight of Aldur, will now always drop an Expedition Logbook on death, eliminating the variance at that particular point once and for all.

More Accessible Runeforging and Transcendent Alloy Regains Its Versatility

Runic Modifiers granted by Runic Inscriptions now boost monster rewards far more significantly: values have doubled in most cases, with some seeing even larger increases. The defensive cost of applying Runeforging to high-level base armor is reduced by around 20%, and existing items will be automatically updated to the new values with no action required from the player. Additionally, Transcendent Alloy once again works on Foci and Wands with the same effects as on Staves, albeit at slightly lower values.

A Penalty for Repetitive Farming and New Dangers in the Crux

One of the patch's most disruptive changes targets players who run the same map over and over: previously attempted maps will now accumulate a 50% penalty to Experience earned, stacking on top of the existing reward reduction. The intent is clear — exploring the Atlas should be more profitable than grinding the same circuit indefinitely. Complementing this, the Followers of the King in the Mists have taken up positions inside the Crux of Nothingness labyrinth, turning that encounter into a considerably more dangerous trap.

Delirium: The System Was Broken, and Now It Works the Way It Always Should Have

The most striking fix in 0.5.3 is to Simulacra. The studio itself acknowledges that the system never worked correctly: Simulacra were supposed to start at 0% Delirium and scale up to 100%, but the progression was completely non-functional. They now begin at 100% and climb to 200%, which will translate into noticeably more intense and rewarding encounters from the very first moment. Simulacrum Maps will also no longer appear immediately when extending the fog on the Atlas; instead, they will generate once the fog bank reaches 100% Delirium, preventing unwanted spawns. Fogged maps will also display special Mirror Shards on the Delirium progress bar with a distance indicator relative to the player — a purely visual change, but highly useful for navigation.

As we covered in our report on patch 0.5.3's endgame improvements, Grinding Gear Games has spent several update cycles fine-tuning advanced content to make the time investment feel fair. This patch goes a step further: it fixes what was broken, rewards players who venture into higher Waystone tiers, and discourages passive farming strategies. The result is an endgame that, for the first time, genuinely feels responsive to how players spend their hours.

Do the changes to Expeditions and Delirium make you want to dive into Path of Exile 2's endgame, or are you waiting for more adjustments before committing to the Atlas?