Season 15 · read out of the game files

Season 15 Secrets

What the Season 15 records hold, and the steps where they carry them.

What this is

Read out of the Diablo IV 3.2.1 game data and checked against the Season 14 build, so “new this patch” means the record itself is new. Drop tables and server scripts are not in that export. Where a chain runs into one, the steps stop and say so.

1

The Secret Cow Level got two new endings

Two worlds, both records new in 3.2.1:

  • ???, “There is no cow level.” Level area: The Secret Cow Level.
  • ???, “True evil survives.” Level area: Whimsydale.

The ??? Nightmare Sigil people are finding is the door. Its record is DungeonKey_SecretLevel, and the keyed-dungeon table gives it one destination:

DungeonKey_SecretLevel → World/OWCSMP_CowKeyedDungeonTypes

Steps

  1. Find the Torn Page. Hidden achievement: There Is No Cow Level, “Find the Outcast’s Torn Page.”
  2. Take the Outcast’s Boat at Scylara in Skovos, off the east edge. It only appears for someone carrying the page.
  3. Enter The Forlorn Cellar beside it.
  4. Collect three relics, one per Skovos region: Mother’s Rose in Athulua, Father’s Chains in Philios, Hierophant’s Skull in Lycander. Each lies on the ground beside its own brazier, at the Temple of Courage, Eastlook Bluff and the Temple of Life.
  5. Light the Signal Brazier in each. A brazier will not light unless you carry that region’s relic.
  6. With all three lit the Hadopelagic Key drops.
  7. The key opens the Locked Wooden Coffin at The Creaking Hulls in Hawezar, into the Temple of the Deathspeaker.
  8. A ritual runs at the Forlorn Cellar and opens a portal there.
  9. On Mount Hefaetrus East Face in Skovos two portals share one spot. One is The Secret Cow Level.
  10. Or use the ??? Nightmare Sigil on a dungeon to reach the same world.

What drops the Torn Page and what drops the sigil are not in the files.

Where each item comes from

ItemSource
Mother’s RoseOn the ground in Athulua, beside its brazier.
Father’s ChainsOn the ground in Philios, beside its brazier.
Hierophant’s SkullOn the ground in Lycander, beside its brazier.
Hadopelagic KeyDrops once all three braziers are lit.
Rusty Cow BellFishing junk.
Torn PageNot in the files.
??? Nightmare SigilNot in the files.
Horadric CoinNot in the files. Refusal line: “You can’t flip it yet.”
Map of the StarsNot in the files.

Three side legs hang off the chain, each gated on a choice from the Fractured Peaks prologue. Anger opens an Amazon leg with an Unusual Key and The Training Grounds, reached from Temis. Pride opens a jail leg with a corrupted Ballista, an Amazonian Bolt to load it, and N’Facl, the Jailer of Angels, in Idyllic Reach. Greed opens the ritual in the Forlorn Cellar.

A sin can be handed over: “A passing wanderer has bellowed at you. You feel the weight of a new sin.” So you can reach a leg you did not choose.

2

The Map of the Stars and the Temple of Baaaaaaal

The Map of the Stars is a new quest item. Used anywhere it does not belong: “You can’t use this now, or here.”

What it opens is new this patch: a world named ???, “Like a lamb to the slaughter.” Its areas are the Temple of Baaaaaaal and the Shepherd’s Conclave.

Steps

  1. Get the Map of the Stars. Where it drops is not in the files.
  2. Go to the Dead Forest in the Scosglen Highlands, about 420 m from the Tirmair waypoint. Two portals sit on one coordinate; one is a cellar, The Forlorn Hovel.
  3. Inside are five things: a dead sheep, the condition that arms the ritual, a hidden portal, the condition that says it is open, and the destination world.
  4. The arming condition tests the same flag as the Vessel of Hatred epilogue chain, so finishing that looks like a requirement.
  5. The hidden portal opens to the Temple of Baaaaaaal, then the Shepherd’s Conclave.

The ritual and the place you use the map are both server-side.

3

Whimsyshire is back

New world this patch. Boss room the Den of Whimsy, boss Neigh’relle, quest “Sparkling Happiness and Rainbows”.

Steps

  1. Finish Chapter 5 of the Season Journey. The potion is one of its rewards.
  2. Use Liquid Rainbow, “The colors swirl and twist in hypnotic patterns.”
  3. A portal called Whimsyshire opens.
  4. Get to the Den of Whimsy and kill Neigh’relle.

Chapter 5’s own text is about clearing Worldstone Keep and never mentions the potion.

Inside: Unicorns, Cuddle Bears, Twinkleroot, Happy Clouds, Candy Jars, Armor and Weapon Gifts, and chests called Soup and Resplendent Soup. Two named unicorns, Donut and Lore-ass.

The Pit has three secret floors

The Pit’s row in the keyed-dungeon table lists three entries that are not tilesets:

  • PIT_Special_Neigh, Whimsyshire. New this patch.
  • PIT_Special_OWCSMP, the cow one.
  • PIT_Special_Fowl, Chi’Khan, The Fowl Beast.

All three print as The Pit with the ordinary subtitle and a Pit Depth number, so the loading screen gives nothing away.

4

Moophisto and the Altar of the Heifer

Moophisto, the Divine Bovine, is a world boss. His arena is the Bovine Sanctum, which has its own waypoint between Kurast Docks and Gea Kul.

New this season: an Altar of the Heifer with a summoning quest attached, plus a Bovine Blacksmith, Jeweler and Occultist.

Steps

  1. Take the Bovine Sanctum waypoint, or summon him at the Altar of the Heifer.
  2. Kill him on Torment.
  3. Open the caches. Bovine Cache is its own item type; Blessings of the Bovine is the mythic one.

Which cache holds which piece is not in the files.

Also here: a Bell of the Bovine amulet wired to a moo emote, and an elixir called Udder’s Milk.

5

Diablo Walks the Earth

DClone is in Season 15, filed under ambush. The Prime Evil Ambush system is new this patch with a leg for each of the three, and Diablo is the only one with an uber form: Echo of Uber Diablo, flavour name The Dark Lord. Two lines exist for it:

Diablo Walks the Earth
Diablo will depart in one minute.

It comes out of your splinter:

  • “Evil rises within your Splinter! An Echo of the Primes will soon emerge!”
  • “Someone nearby is losing control. An Echo of the Primes will soon emerge!”
  • “The evil within your Splinter has settled. You are safe for now…”

Steps

  1. Pledge to Diablo, the Splinter of Terror.
  2. Earn Flames of Metus by slaying Remnants of Terror. The ambush conditions check for it.
  3. Play. There is no marker for it anywhere.
  4. If it rolls uber you get Diablo Walks the Earth and one minute before he leaves.

What makes it proc, and what makes it roll uber, are server-side.

6

Annihilus and the Hellfire Torch

Both are new this patch and they take different slots. Annihilus is a Horadric Seal. Hellfire Torch is a Charm. So they can be worn together.

Annihilus · sealHellfire Torch · charm
+10% to +20% All Stats+10% to +20% All Stats
+10% to +20% All Resistance+10% to +20% All Resistance
+5 to +10 All Skills+1 to +4 All Skills
+5% to +10% Experience+1 unique charm slot

The Torch’s fourth line is the attribute Unique_Charm_Count_Bonus at 1: wearing it lets you equip one more unique charm. There is also a set of per-class Torch affixes that each read +1 Set count to a named Talisman set, five per class, so a Torch can push a set one tier up.

Neither has a grant in the export. In Diablo II the Torch came from Uber Tristram and Annihilus from Uber Diablo, and this season has both, but no record joins them.

The Stone of Jordan is new too, as a talisman charm with two cube recipes: “Your Resistances are each equal to your highest, and you deal more damage of that Element.”

7

Na-Krul and Diablo Hellfire

All new this patch. The world World_S15_FesteringNest prints as Diablo Hellfire - Lester’s Farm. A Journey achievement, Na-Krul and Unusual, reads: “Complete Diablo Hellfire: Lester’s Farm in Torment V or higher.” A second criterion names Diablo Hellfire: Festering Night.

The boss is Na-Krul, The Lord of Hellfire. The game places a Door, a Lever, three Spellbooks and Hell’s Fingers around him. Each book carries one line:

BookReads
A SpellbookIn Spiritu Sanctum.
A SpellbookPraedictum Otium.
A SpellbookEfficio Obitus Ut Inimicus.

The order is in the game too. Every Splinter of Hellfire carries the three as one line of flavour text:

“In Spiritu Sanctum. Praedictum Otium. Efficio Obitus Ut Inimicus.”

Steps

  1. Get into Diablo Hellfire: Lester’s Farm. The entrance actor is a Strange Thicket and the way down is a portal called Down to Hive.
  2. Find Na-Krul’s Door. A Lever and three Spellbooks sit with it.
  3. Read the books in the order the splinter prints them: In Spiritu Sanctum, then Praedictum Otium, then Efficio Obitus Ut Inimicus.
  4. Kill Na-Krul on Torment V or higher for the Journey tick.

Whether the lever opens the door with him at full strength, as it did in Hellfire, is a server script and not in the files.

Lester the Farmer is an actor here, and a unique amulet quotes him: “The fever racks my body. It dances… rhythmless, endless! I fear there is but one remedy. MORE! I must hear more…”

Na-Krul has his own splinter line, four tiers, all resistance: Lesser +35, Splinter of Hellfire +250, Greater +375, Abyssal +625. Socketed it reads “You deal increased damage, but lose Critical Strike Chance.”

8

The Bovine armour

Five pieces, new this patch, every one a cosmetic: Head, Brisket, Foreshanks, Sirloin and Hooves of the Bovine. Helm, chest, gloves, pants, boots. Every class can wear all of it.

It is not a gameplay set. No set bonus in the game mentions these.

In the wardrobe every piece reads Earned as an in-game reward, which is the game’s own line for a drop. The shop, the battle pass, a season track, PvP, salvage and limited-time events each have a different line and none of them is used here. No store product, no battle pass tier, no vendor, no quest, no recipe, and an empty price field.

Of everything carrying the cow tag, one record is a container: Blessings of the Bovine, the mythic cache, “Grants several Moothic Unique items”, Torment only.

Steps

  1. Take the Bovine Sanctum waypoint, or summon him at the Altar of the Heifer.
  2. Kill Moophisto on Torment.
  3. Open Blessings of the Bovine.

What is inside a cache is not in the files. Everything else has been ruled out.

9

Mefishto, the Lord of Relaxation

New hidden achievement, Blessed by the Bait: “Slay the Lord of Relaxation.”

The Lord of Relaxation is Mefishto, a demonic fish set up for combat, which no other fish is.

One of the new hidden cube recipes takes ten gold and returns a Torn Net. Nothing in the files joins the two.

10

Gharbad, Ogden’s sign, and the Butcher

The cathedral is not a building in Tristram you can walk into. It is the first floor of a separate dungeon, Diablo - The Labyrinth, whose floors are named as they were in 1996: Cathedral: Level 2, Catacombs: Level 7, Caves: Level 10, Hell: Level 15 and 16.

Steps

  1. Take the Corbach waypoint in Scosglen.
  2. The Labyrinth door is at Duin Abbey in the Strand of Scosglen, about 60 m away. Nightmare and Hell are both at Torvstrath, level 70 and Torment VIII and Torment XII.
  3. For Ogden’s Sign, find Snotspill inside. The quest points at all three difficulties.
  4. For Gharbad the Weak, he is on Cathedral: Level 4, in a quest called A Curious Monster.
  5. The Butcher is placed only by a Labyrinth marker set, and three records give three different floors.

What Ogden’s cap turns out to be is not in the files.

There is a separate actor called Gharbad the Strong, so letting him finish goes the way it always did.

11

The hidden cube recipes

Recipes that show nothing until the right things are in the cube:

Put inGet
Torn Page + Rusty Cow Bell x3Outcast’s Travel Pouch
Horadric Coin + Engagement Ring x2 + Lost AmuletSack of Ill Trinkets
10 goldTorn Net
Cheap Bangles + Lost Amulet + Useless Key + Holy Chalice + Engagement RingWorthless Gold Cache
Neyrelle’s Hand + Rusted Bardiche + Stamina PotionTrophy of the Faithful

The rune upgrades are hidden too, fourteen of them, and they only run while Season 15 is on. They make two separate runs, not one ladder: there is no recipe joining Sol to Mal.

Put inGet
Tir x3Eth
Eth x3Ith
Ith x3Tal
Tal x3Ral
Ral x3Ort
Ort x3Thul
Thul x3 + Chipped TopazAmn
Amn x3 + Chipped AmethystSol
Mal x2 + Flawless AmethystIst
Ist x2 + Flawless RubyVex
Vex x2 + Flawless EmeraldOhm
Ohm x2 + Flawless DiamondLo
Lo x2 + Grand TopazBer
Ber x2 + Grand SapphireJah

Three of a rune below Sol, two of a rune and a better gem above it. The six lowest want no gem at all.