PoE 2 Delirium 0.5.0 Guide

Delirium in Path of Exile 2 patch 0.5.0 is not the same old grey fog with better loot stapled onto it.

That is the first thing to understand.

Patch 0.5.0 did not merely adjust Delirium numbers. It turned the mechanic into a proper endgame loop: you step through the mirror, push the fog, collect Distilled Emotions, build toward Simulacrum, progress the Delirium Atlas tree, and eventually get pulled toward Tangmazu, the boss sitting at the end of the madness.

It is cleaner now. Meaner, too.

And if your build is pretending to be ready, Delirium will find out very quickly.

Recent updates around Path of Exile 2 0.5.1 also matter here. Patch 0.5.1 added more Atlas Passive Skills, a new Lineage Support Gem, Elemental Passive Skills, and bug fixes, while GGG’s own notes mention fixes affecting Simulacrum completion issues. That means Delirium strategy is still settling, especially around Atlas investment and Simulacrum reliability.

This guide focuses on strategy, not just definitions. We will cover the fog, shards, Grand Mirrors, Simulacrum, Distilled Emotions, Atlas priorities, and Tangmazu. I will also mention where buying power helps — for example, players who need gearing resources can Buy PoE 2 Currency on U4GM.com — but with an important boundary: currency can fix your gear, not your decision-making.

And Delirium is mostly decision-making.

Latest PoE 2 News: What Changed Around Delirium in 0.5.0 and 0.5.1

The latest important context is that Path of Exile 2’s 0.5.0 update, Return of the Ancients, reworked major endgame systems, including Delirium. The mechanic now has clearer progression, stronger narrative framing, and more structured goals. Delirium is no longer just “touch mirror, chase fog, hope for drops.” It is tied to named progression, Elder Madox, the Withered Willow hub, Grand Mirrors, Trial of Madness, Simulacrum, and Tangmazu. 

Then came 0.5.1, which added Atlas Passive Skills and included multiple fixes. One particularly relevant official note mentions a fix for an issue where Simulacrum could spawn monsters from other sources, preventing normal completion. That is not a tiny detail if you are investing time and splinters into Simulacrum runs.

Here is the practical version:

So if you are returning after an earlier version, do not rely on old habits. They will get you killed, or worse, they will waste your maps.

What Delirium Is in PoE 2 0.5.0

Delirium begins when you enter a map containing a Delirium Mirror. The mirror usually appears near your spawn. Step through it and the map fills with fog.

That fog changes the rules.

Enemies become more dangerous. They take less damage. More monsters appear. The reward bar starts to matter. The map becomes a race between your build’s ability to keep moving and the fog’s ability to bury you under pressure.

There is also a progression bar at the bottom of the screen. Do not treat it like decoration. It tells you how deep you are in the encounter and how much time or pressure you are working with.

The mechanic is simple enough to understand in one sentence:

Delirium rewards you for moving forward aggressively, but punishes you for pretending your build is stronger than it is.

That is the whole thing, really.

The fog wants you greedy. The best players are greedy only on purpose.

The Delirium Loop: From Mirror to Tangmazu

In 0.5.0, Delirium has a much clearer structure. You are not just doing isolated fog events. You are climbing a progression chain.

This is why Delirium now asks more from your character.

A pure mapper can farm fog for a while.
A pure bosser can kill hard targets.
But a good Delirium character needs both.

You need speed for the fog and damage for the bosses. You need enough defense to survive mistakes, but not so much sluggishness that the fog leaves you behind.

That balance is the hard part.

Fog Mechanics: The Real Test Is Momentum

The fog expands as you move away from the mirror’s starting point. In theory, this encourages movement. In practice, it exposes every bad habit you have.

If you stop to loot every rare item, you lose rhythm.
If you chase one monster into a side room, you lose rhythm.
If you backtrack for a shard without thinking, you lose rhythm.
If you fight a rare for thirty seconds because your ego got involved, you lose rhythm.

And once Delirium rhythm breaks, the run starts feeling ugly.

The Good Delirium Run

A good run feels almost boring at first.

You step through the mirror.
You pick a direction.
You move forward.
You kill dense packs.
You skip scraps.
You interact with valuable mechanics only when they are on your route.
You do not turn a clean map into a personal argument with every rare monster.

That is how you make Delirium profitable.

The Bad Delirium Run

A bad run is usually not one huge mistake. It is a chain of small ones.

You click a Red shard too early.
You enter a sealed arena with weak flask uptime.
You survive, barely.
Then you chase a Purple shard.
Now enemies are stronger.
Then a rare spawns near a Fractured Mirror.
Now the fog is still moving and you are standing still.

Five seconds later, you are dead and blaming the mechanic.

Sometimes the mechanic is unfair. Sure.

But often you gave it permission.

Purple Shards, Red Shards, and Fractured Mirrors

Delirium now includes mirror shard decisions that change the pressure of a run. The important question is not “Should I click them?” It is “Can I afford what happens after I click them?”

The Purple shard is a confidence check.

The Red shard is a positioning check.

The Fractured Mirror is a greed check.

That is how I would think about them. Not as objects. As questions.

If your build answers “yes,” take the reward. If it answers “maybe,” be careful. If it answers “absolutely not,” keep moving.

There is no shame in leaving danger behind. There is shame in dying to prove a point to a mirror shard.

How to Get Into Delirium Consistently

You will naturally see Delirium encounters while mapping. Maps with Delirium encounters are marked with a black-and-white mirror icon on the Atlas tooltip.

If you want a more deliberate approach, you can use a Delirium Precursor Tablet in a Lost Tower. The tablet’s implicit modifier determines how many nearby waystones become infected, while explicit modifiers apply to uncompleted maps within the tower radius.

That matters because Delirium is not equally good everywhere.

You want to infect maps you actually want to run. Linear layouts, good density, and clean boss routes are better than awkward maze maps where the fog makes you hate your choices.

You can also instill a Waystone directly with a Distilled Emotion to add Delirium layers. But there is a boundary here: this does not stack with a Delirium Mirror.

So do not waste both.

That kind of mistake hurts because it feels small, but Delirium farming is built from small margins. Save resources where the game does not reward you for spending them.

Simulacrum Splinters: Do Not Farm the Wrong Tier

Here is one of those details that saves people hours:

Simulacrum Splinters only drop from Tier 11+ Waystones.

If you are farming lower-tier maps and expecting Simulacrum Splinters, you are not unlucky. You are in the wrong place.

That is the kind of information that should change your farming plan immediately.

This is also where buying currency can make sense. If your build can almost handle Tier 11+ Delirium but lacks a key weapon, defensive upgrade, or resistance fix, you can Buy PoE 2 Currency on U4GM.com and speed up the gearing process.

Just do not confuse “I bought better gear” with “I am ready for 200% Deliriousness.”

Those are different things.

The Hare and the Raven: Elder Madox, Withered Willow, and Grand Mirrors

The 0.5.0 Delirium questline gives the mechanic more personality.

After the Journey’s End events where Tangmazu is released, your next Delirium Mirror encounter can trigger a meeting with Elder Madox. Madox is trapped inside a delusion and pulls you into the new Delirium progression structure.

From there, you move toward the Withered Willow, a hub surrounded by Delirium-afflicted maps. This becomes your base for the loop. It gives the mechanic a sense of place, which Delirium badly needed.

Then come Grand Mirrors.

Completing Delirium Mirrors can spawn a Grand Mirror on a nearby Atlas map. A Grand Mirror duplicates the map boss, forcing you into a double-boss situation. You need to kill both bosses to unlock the Trial of Madness.

This is the point where Delirium stops being only a clear-speed mechanic.

If your build has beautiful AoE but embarrassing single-target damage, Grand Mirrors will expose it.

Grand Mirror Strategy

The Grand Mirror is not just a gate. It is a warning.

If you barely survive it, Simulacrum will probably be worse.

Trial of Madness and Deliriousness Scaling

After Grand Mirror progression, you enter the Trial of Madness structure. Fog spreads across the Atlas from a chosen map. Every Delirious map starts at 10% Deliriousness.

Killing Rare monsters and map bosses pushes that number upward. The key breakpoint is 100% Deliriousness, which unlocks a locked Simulacrum. You can push further, up to 200% Deliriousness.

Should you?

Maybe.

But probably not immediately.

The biggest mistake is treating 200% like a goal instead of a choice.

It is not mandatory.
It is not proof of skill.
It is a trade: danger for reward.

If your clear slows too much or deaths start appearing, the profit may be worse than a cleaner lower-percentage run.

Delirium has always understood greed better than players do.

Simulacrum: 15 Waves, No Patience for Bad Builds

To enter Simulacrum, collect 300 Simulacrum Splinters and place them in the Realmgate.

Then you survive 15 waves.

That sounds simple. It is not.

Each wave escalates enemy pressure and can apply rotating negative modifiers. After each wave, loot drops. You need to stash it before clicking the NPC to begin the next wave, because if you start the next wave carelessly, the previous loot can disappear.

This sounds like something no one would forget.

People forget it anyway.

Simulacrum Wave Strategy

Omniphobia and Kosis

Omniphobia is the appetizer.

Kosis is the point where the game asks whether your build has been lying on its résumé.

If Kosis takes forever to kill, do not keep throwing Simulacrum attempts into the fire. Fix your damage. Fix your recovery. Then come back.

Important Simulacrum Detail: Corpse-Based Builds Need Caution

The Simulacrum removes corpses.

That matters a lot.

If your build depends heavily on corpse interactions, on-kill loops, or corpse-based recovery, test carefully before committing. Some builds that feel smooth in maps become awkward or broken in Simulacrum because the environment denies a core part of their engine.

This is why Simulacrum should not be judged by map performance alone.

A build can be good in fog maps and still feel wrong in the arena.

That is not a contradiction. It is a different test.

Simulacrum Rewards: Why Full Clears Matter

Completing all 15 waves grants 2 Delirium Passive Skill points and a Simulacrum-exclusive unique item.

A full run can also produce a large number of Distilled Emotions. Based on the provided Delirium data, a full 15-wave Simulacrum commonly yields 70+ Distilled Emotion drops, though actual results can vary depending on difficulty and modifiers.

Higher Simulacrum difficulties can bias drops toward specific uniques. For example, if you are chasing something like Melting Maelstrom, difficulty 3 or 4 may be more attractive. Lower difficulties, meanwhile, give more comfortable repeat attempts with less heartbreak.

That is the trade.

The best difficulty is not the highest one you can enter.

It is the highest one you can clear reliably.

Distilled Emotions: The Currency That Makes Delirium Worth Farming

Everything in Delirium eventually points toward Distilled Emotions.

They drop from fog enemies, Simulacrum waves, and bosses. They are used for crafting, amulet anointments, Waystone Delirium layers, and later, Potent variants can unlock modifiers unavailable through other crafting paths.

That is why they matter.

Not because they are another collectible. Because they create choices.

Distilled Emotion Uses

Distilled Emotion Categories

The mistake is using a valuable Emotion because you are excited.

Do not do that.

Use Distilled Emotions on good bases. If you are anointing an amulet, make sure the amulet deserves it. If you are adding Delirium layers to a Waystone, make sure the map layout and modifiers deserve it.

A bad base with a good anoint is still a bad decision wearing jewelry.

Delirium Atlas Passive Tree: What to Prioritize First

You earn Delirium Atlas passive points by completing Delirium-afflicted maps. Simulacrum clears also grant points, with higher difficulty required as you pursue more Notable progression.

In 0.5.0, the Delirium Atlas tree was significantly restructured, and 0.5.1’s broader Atlas Passive additions make it even more important to think before clicking. 

The best early Delirium Atlas choices are the ones that increase reward consistency without making your build collapse.

Recommended Early Notables

The reason these are good is simple: they improve the thing you came for — rewards — without immediately turning every map into a punishment chamber.

Other notables may be strong, but read them carefully.

Some Delirium passives are not “bad.” They are bad for a build that is not ready.

That distinction matters.

Tangmazu Boss: The End of the Delirium Loop

Tangmazu is the architect behind this mess.

In the Delirium pinnacle encounter, Tangmazu appears alongside a reflected and empowered version of the map’s own boss. This is not subtle design. The game is telling you that Delirium is both a boss fight and a mirror fight. You are fighting the encounter, the boss, and your own build’s weaknesses at the same time.

The reward can include the Voices unique jewel, which is one of the major reasons serious players push this content.

But do not walk into Tangmazu with a pure mapping setup and optimism.

Optimism is not mitigation.

Tangmazu Preparation Table

How to Approach Your First Tangmazu Attempts

Your first attempt should not be about proving you can win.

It should be about learning what the fight is asking.

Watch the reflected boss. Watch Tangmazu. Notice which attacks force movement. Notice whether you are dying to burst, attrition, bad positioning, or slow damage. Those are different problems with different solutions.

If you die and immediately re-enter without changing anything, you are not progressing.

You are donating attempts.

Tangmazu Boundary Rule

Use this rule:

If you cannot explain why you died, you are not ready to spend another expensive attempt.

Take a breath. Change gear. Change flasks. Adjust supports. Review the pattern. Then go again.

That is how serious bossing works.

Build Strategy: What Actually Works in Delirium

The best Delirium builds are not necessarily the flashiest. They are the builds that keep working when the screen gets worse.

That means they need a blend of clear speed, survival, and boss damage.

A build that clears fast but dies every third map is not efficient. It is just dramatic.

A build that survives everything but kills too slowly is also not efficient. It is safe, but poor.

Delirium rewards the middle ground: fast enough, tough enough, disciplined enough.

Best Strategy for Farming Delirium in 0.5.0

Here is a practical farming plan.

Step 1: Start With Comfortable Maps

Do not begin by juicing everything. Run Delirium on maps where your build already feels strong.

The goal is to learn:

• Which layouts support the fog.
• Which monsters slow you down.
• Whether your damage falls off against rares.
• Whether you are dying to burst or attrition.
• Whether your loot filter is too noisy.

Step 2: Move Into Tier 11+ When You Want Splinters

Once your build is stable, move into T11+ Waystones to farm Simulacrum Splinters.

Do not waste low-tier maps expecting splinters.

That mistake is avoidable.

Step 3: Add Delirium Layers Deliberately

Use Distilled Emotions on Waystones only when the map is worth investing in.

A good Waystone target has:

Step 4: Run Simulacrum Only When Your Build Is Ready

If your maps are messy, Simulacrum will be worse.

Wait until you can handle dense Delirium content with few deaths. Then enter.

Step 5: Prepare Separately for Tangmazu

Tangmazu is not just another mapping target. Swap supports if needed. Upgrade boss damage. Fix defenses. Bring the right setup.

Do not let pride decide your build.

Buy PoE 2 Currency on U4GM.com: When It Makes Sense

There is a reasonable place for trading and currency buying in this loop.

If you need faster gearing, you can Buy PoE 2 Currency on U4GM.com to help purchase upgrades for Delirium, Simulacrum, or Tangmazu preparation.

That can be useful for:

But keep the boundary clear.

Currency helps you buy tools. It does not teach you when to click Red shards. It does not tell you when to abandon a bad fog route. It does not stop you from starting the next Simulacrum wave before stashing loot.

Buy power if you want.

Then play better.

Both matter.

Exclusive Field-Test Framework: The “Fog Permission Check”

Here is a practical framework you can use in every Delirium map. It is not official. It is not pulled from a tooltip. It is a decision system built around how Delirium actually punishes players.

Before pushing deeper, ask three questions:

If all three are yes, you have permission to push.

If two are yes, push carefully.

If one is yes, finish safely.

If none are yes, leave.

This is verifiable because you can test it yourself. Track ten maps where you obey the rule and ten maps where you ignore it. Record deaths, time spent, and rewards.

Most players will notice the same thing: their worst Delirium runs were not unlucky. They were undisciplined.

That stings a little.

Good. It should.

Common Delirium Mistakes and Better Choices

The most expensive mistake is not dying.

It is refusing to learn why you died.

Quick Run Checklist

Use this before serious Delirium farming.

That last one is important.

A lot of players do not lose to Delirium.

They lose to the idea of what they think they should be able to do.

Delirium Rewards Discipline More Than Bravery

PoE 2 Delirium in 0.5.0 is one of the better endgame loops because it keeps asking you to make choices.

Do you click the shard?
Do you keep pushing?
Do you leave the rare behind?
Do you scale the Waystone?
Do you enter Simulacrum now or wait?
Do you fight Tangmazu with your current build, or fix the obvious weakness first?

There is no single correct answer for every character.

That is the point.

If your build is strong, Delirium becomes one of the most rewarding systems in the game. If your build is almost strong, it becomes a teacher. If your build is weak and you refuse to admit it, Delirium becomes a wall.

So respect the fog.

Farm T11+ when you need splinters. Use Distilled Emotions on items that deserve them. Take Atlas passives that match your actual build, not someone else’s showcase. Stash your Simulacrum loot. Prepare seriously for Tangmazu.

And if gearing is the bottleneck, you can Buy PoE 2 Currency on U4GM.com to speed up the process.

Just remember: the fog does not care how expensive your gear is if you stand still in the wrong place.