PoE 2 0.5 Update: Delirium Farming Adjustments Explained

[SilentComet]

The 0.5 update in Path of Exile 2 brings some of the most impactful changes yet to Delirium farming. For players who have been grinding endgame maps and optimizing Simulacrum runs, this patch noticeably shifts the pacing, removes certain efficiency tricks, and reworks reward scaling to better match difficulty. Overall, the direction is clear: fewer shortcuts, more structured progression, and higher stakes for high-end farming.

The End of Back-Tracking Cheese

One of the biggest changes targets a long-standing farming behavior where players would manipulate map flow for maximum Delirium mirror spawns. Previously, it was possible to rush to the boss, kill it, and then backtrack through the map to trigger multiple Delirium mirrors at once. This created highly efficient clears that prioritized routing over combat.

In 0.5, that approach is no longer viable. Delirium mirrors now must be cleared in a linear progression as you move through the map. This means you engage with content in the order it appears, rather than controlling spawn timing through movement tricks. For fast boss-rushing builds, this change increases overall clear time and reduces the effectiveness of skip-heavy strategies. The result is a more consistent but slower farming experience.

Complete Simulacrum Overhaul

The Simulacrum, a core endgame Delirium activity, has also been heavily redesigned. The goal appears to be fixing scaling issues that previously made late-wave content feel inconsistent in both difficulty and reward.

Instead of starting at low Deliriousness and gradually ramping up, Simulacrum runs now begin immediately at 100% Deliriousness. From there, difficulty climbs aggressively and can reach up to 200% by the end of the run. This makes early waves significantly more dangerous than before, and pushes builds to be properly optimized from the start.

Another major change is the removal of wave-specific modifiers. These were previously seen as uneven difficulty spikes that didn’t always justify their rewards. With them gone, encounters feel more uniform and predictable, even if overall difficulty is higher.

Perhaps the most interesting addition is the new post-boss choice system. After completing certain encounters, players are given a selection of mirror shard options that directly modify upcoming rooms. These choices can add extra bosses, increase monster density, or apply more rewarding but dangerous map modifiers. If the options become too punishing, players can opt out entirely and take no additional effects. This adds a layer of decision-making that lets players shape the difficulty curve of their run in real time.

Grand Mirrors and High-End Delirium Mapping

At the top end of Delirium content, Grand Mirrors now define the most extreme mapping experience. These are special map states that permanently alter how Delirium fog behaves and how rewards scale.

Inside a Grand Mirror map, the fog no longer dissipates. Instead, it remains active throughout the entire run, forcing players to fight continuously under maximum pressure. This creates an almost endless combat scenario where positioning and sustain matter far more than speed alone.

To compensate for the increased danger, tablet effects inside these maps are significantly amplified. Any Delirium tablets used in a Grand Mirror map apply double their normal effects, stacking both positive and negative modifiers more intensely than before. This makes preparation and build planning far more important than in standard mapping.

Generating these maps requires specific conditions. Players must use a Delirium tablet on a high-tier map, then defeat the map boss while still within active fog. When done correctly, this can trigger the Grand Mirror state, unlocking one of the most rewarding but dangerous farming loops in the game.

Loathsome Mire and New Unique Rewards

The update also introduces a new area called Loathsome Mire, accessed through red Fracturing Mirrors. Unlike standard mapping content, this zone behaves more like a maze-style challenge with environmental hazards layered on top of combat encounters.

The objective is to navigate toward a central altar by following the flow of blood-like visual cues while avoiding constant damage-over-time effects throughout the area. It is designed to pressure both movement and awareness, rather than pure damage output.

The reward for completing this challenge is a unique amulet with two pre-anointed passive skills. This is especially notable because it breaks normal crafting limitations, offering combinations that cannot be achieved through standard item systems. As a result, Loathsome Mire becomes a high-risk route for players chasing powerful, build-defining accessories.

Overall, the Delirium changes in PoE 2 0.5 shift the system away from exploit-driven efficiency and toward structured, high-intensity gameplay. Farming is less about manipulating map flow and more about adapting to consistent pressure and layered risk. Simulacrums are more dangerous but more controlled, Grand Mirrors push endgame mapping into near-constant combat, and new zones like Loathsome Mire introduce unique reward paths for players willing to take on mechanical challenges.

For players invested in Delirium farming, the patch doesn’t remove rewards—it simply demands more commitment, better builds, and a more deliberate approach to every run.