Treehouse of Horror XXX Event was the 4th multi-event of 2019 and the 5th multi-event overall. It was released on October 23, 2019 and ended on November 20, 2019.
Similar to other multi-events, it was divided into 4 acts:
- Act 1: October 23, 2019 - October 30, 2019
- Act 2: October 30, 2019 - November 6, 2019
- Act 3: November 6, 2019 - November 13, 2019
- Act 4: November 13, 2019 - November 20, 2019
Quests 
Edit
| Main Quests | Whole Event | Same Mistakes, New Plan |
|---|---|---|
| Act 1 | Operation Clogged Drain | |
| Act 2 | Prelude to a Powermove | |
| Act 3 | Once Bitten, Twice Die | |
| Act 4 | A Mother Scorn · Rigellian Reckoning | |
| Side Quests | ||
| Act 1 | A Man Called Krubb · Love Like You · Sins of Our Father · Wish is my Command | |
| Act 2 | Hunger Rampage · Unforeseen Consequences | |
| Act 3 | Music and Mishaps · Craft Brew Ha-Ha | |
| Act 4 | The Devil's Day Off · Price of Peace |
New Content Edit
Buildings
| Name | Cost/Need to Collect | How to Unlock | Available |
|---|---|---|---|
| Haagen Death |  50
| Prelude to a Powermove Pt. 1 | Act 2 Prize |
| Dracula's Castle | 100
| Prelude to a Powermove Pt. 3 | Act 2 Prize |
| Seven Sisters |  50
| Once Bitten, Twice Die Pt. 1 | Act 3 Prize |
| Three Bears Home | 100
| Once Bitten, Twice Die Pt. 3 | Act 3 Prize |
| Rigel VII |  100
| A Mother Scorn Pt. 3 | Act 4 Prize |
| Invisible House with Dr. Griffin (Invisible Man) |  150
| - | Act 2 |
Characters
| Name | Cost/Need to Collect | How to Unlock | Available |
|---|---|---|---|
| Malicious Krubb |  50
| Operation Clogged Drain Pt. 1 | Act 1 Prize |
| Zia Simpson | 100
| Operation Clogged Drain Pt. 5 | Act 1 Prize |
| Gelatinous Homer | 100
| Prelude to a Powermove Pt. 5 | Act 2 Prize |
| Martin of the Opera | - | Underground Piano | Act 3 Prize |
| Lucy Fer Sa'tan | 100
| A Mother Scorn Pt. 5 | Act 4 Prize |
| Monkey's Paw Salesman | - | Monkey's Paw Shop | Act 1 |
| Dr. Griffin (Invisible Man) | - | Invisible House | Act 2 |
| Bridge Troll Moe | - | Deep Dark Woods | Act 3 |
| God | - | The Ten Commandments | Act 1 |
| Kamala | - | Rigellian Infant Pod Transmitter | Act 4 |
Decorations
| Name | Cost/Need to Collect | How to Unlock | Available |
|---|---|---|---|
| Robot Homer | 100
| Operation Clogged Drain Pt. 3 | Act 1 Prize |
| Underground Piano with Martin of the Opera | 100
| Once Bitten, Twice Die Pt. 5 | Act 3 Prize |
| Satan's Path | 50
| A Mother Scorn Pt. 1 | Act 4 Prize |
| The Ten Commandments with God | 777
| Gil Deal | Whole Event |
| Monkey's Paw Shop with Monkey's Paw Salesman | 150
| - | Act 1 |
| Deep Dark Woods with Bridge Troll Moe | 150
| - | Act 3 |
| Rigellian Infant Pod Transmitter with Kamala | 150
| - | Act 4 |
Returning Content Edit
Buildings
| Name | Cost/How to Unlock | Available |
|---|---|---|
| Pumpkin House | 100
| Act 3 Prize |
| Gingerbread House | 100
| Act 3 Prize |
| Portal to Rigel 7 | 100
| Act 4 Prize |
| Manger | 100
| Act 4 Prize |
| Bell Tower |  1000
| Whole Event |
| Catacombs | 1000
| Whole Event |
| Make-a-Thing Workshop | 2000
| Whole Event |
| Medieval Rich House | 1000
| Whole Event |
| Spooky Cabin | 1000
| Whole Event |
| Spooky House | 1000
| Whole Event |
| Count Burns' Castle | 70
| Whole Event |
| House of Evil | Evil Shopkeeper Bundle | Whole Event |
| Mausoleum | 60
| Whole Event |
| Re-Neducation Center | 80
| Whole Event |
| Serfsons House | 185
| Whole Event |
Characters
| Name | Cost/How to Unlock | Available |
|---|---|---|
| Hugo | 100
| Act 1 Prize |
| Blinky Monster | Scary Dock | Act 1 Prize |
| Count Dracula | 100
| Act 2 Prize |
| Werewolf | Howl Hill | Act 2 Prize |
| Suzanne the Witch | Gingerbread House | Act 3 Prize |
| J. Rigellian Christ | Manger | Act 4 Prize |
| Kang | FREE, (complete Same Mistakes, New Plan)
| Whole Event |
| Kodos | FREE, (complete Same Mistakes, New Plan)
| Whole Event |
| Azzlan | Serfsons House | Whole Event |
| Burns Monster | 25
| Whole Event |
| Disco Zombie | 25
| Whole Event |
| Evil Shopkeeper | Evil Shopkeeper Bundle | Whole Event |
| Helter Skeleter | 25
| Whole Event |
| King Snorky | 40
| Whole Event |
| Mutant Peacock | 75
| Whole Event |
| Talking Krusty Doll | Evil Shopkeeper Bundle | Whole Event |
Outfits
| Name | Character | Cost/How to Unlock | Available |
|---|---|---|---|
| U.B.O. | Mr. Burns | 1000
| Whole Event |
| Count Burns | Mr. Burns | Burns Coffin | Whole Event |
| Moog | Moe | 50
| Whole Event |
Façades
| Name | Building/Decoration | Cost/How to Unlock | Available |
|---|---|---|---|
| Heck House | First Church of Springfield | 40
| Whole Event |
| Krusty Murder | Krusty Burger | 1000
| Whole Event |
| Kill-E-Mart | Kwik-E-Mart | 1000
| Whole Event |
| Moe's Terror | Moe's Tavern | 1000
| Whole Event |
Consumables
| Name | Cost/How to Unlock | Available |
|---|---|---|
| Evil Shopkeeper Bundle | 145
| Whole Event |
| Mystery Jack-O-Lantern | 50
| Act 2 |
| Magical Mystery Box | 45
| Act 1 |
| THOH Mystery Box | 50
| Whole Event |
Decorations
| Name | Cost/How to Unlock | Available |
|---|---|---|
| Scary Dock | 100
| Act 1 Prize |
| Howl Hill | 100
| Act 2 Prize |
| Biohazard Wall | 1000
| Whole Event |
| Bonsai Beings | 1000
| Whole Event |
| Bramble Hedge | 1000
| Whole Event |
| Castle Wall | 1000
| Whole Event |
| Corridor | 1000
| Whole Event |
| Covered Bridge | 1000
| Whole Event |
| Dark Carriage | 1000
| Whole Event |
| Dead Tree | 1000
| Whole Event |
| Dormitory Tower | 1000
| Whole Event |
| Flying Bats | 1000
| Whole Event |
| Forest Cave | 1000
| Whole Event |
| Forest Grove | 1000
| Whole Event |
| Gargoyle Wall (x4) | 1000
| Whole Event |
| Halloween Balloons | 1000
| Whole Event |
| Haunted Stables | 1000
| Whole Event |
| Hanging Streetlamp (x4) | 1000
| Whole Event |
| Hay Cart | 1000
| Whole Event |
| Iron Wall (x4) | 1000
| Whole Event |
| Jack-o-Lantern | 1000
| Whole Event |
| Magic Academy Castle Gate | 1000
| Whole Event |
| Magic Academy Castle Wall | 1000
| Whole Event |
| Magic Academy Courtyard | 1000
| Whole Event |
| Magical Essence Sucker | 1000
| Whole Event |
| Mortician Carriage | 1000
| Whole Event |
| Pyre | 1000
| Whole Event |
| Ruins | 1000
| Whole Event |
| Shipwreck | 1000
| Whole Event |
| Spooky Brambles (x4) | 1000
| Whole Event |
| Spooky Grove | 1000
| Whole Event |
| Spooky Tree | 1000
| Whole Event |
| Spooky Wall | 1000
| Whole Event |
| The Impossible Tower | 1000
| Whole Event |
| Vampire Casket | 1000
| Whole Event |
| Wailing Wall | 50
| Whole Event |
| Wolf Rock | 1000
| Whole Event |
| Burns Coffin | 120
| Whole Event |
| The Island of Dr. Hibbert | 70
| Whole Event |
Personal Prizes Edit
Act One
| Prize | Quest | Currency Needed |
|---|---|---|
| Malicious Krubb | Operation Clogged Drain Pt. 1 | 50
|
| Hugo* OR 12
| Operation Clogged Drain Pt. 2 | 100
|
| Robot Homer | Operation Clogged Drain Pt. 3 | 100
|
| Scary Dock (with Blinky Monster)* OR 12
| Operation Clogged Drain Pt. 4 | 100
|
| Zia Simpson | Operation Clogged Drain Pt. 5 | 100
|
* If the prize was already owned, the donuts were the alternate prize.
Act Two
| Prize | Quest | Currency Needed |
|---|---|---|
| Haagen Death | Prelude to a Powermove Pt. 1 | 50
|
| Count Dracula* OR 12
| Prelude to a Powermove Pt. 2 | 100
|
| Dracula's Castle | Prelude to a Powermove Pt. 3 | 100
|
| Howl Hill (with Werewolf)* OR 12
| Prelude to a Powermove Pt. 4 | 100
|
| Gelatinous Homer | Prelude to a Powermove Pt. 5 | 100
|
* If the prize was already owned, the donuts were the alternate prize.
Act Three
| Prize | Quest | Currency Needed |
|---|---|---|
| Seven Sisters | Once Bitten, Twice Die Pt. 1 | 50
|
| Pumpkin House* OR 12
| Once Bitten, Twice Die Pt. 2 | 100
|
| Three Bears Home | Once Bitten, Twice Die Pt. 3 | 100
|
| Gingerbread House (with Suzanne the Witch)* OR 12
| Once Bitten, Twice Die Pt. 4 | 100
|
| Underground Piano (with Martin of the Opera) | Once Bitten, Twice Die Pt. 5 | 100
|
* If the prize was already owned, the donuts were the alternate prize.
Act Four
| Prize | Quest | Currency Needed |
|---|---|---|
| Satan's Path | A Mother Scorn Pt. 1 | 50
|
| Portal to Rigel 7* OR 12
| A Mother Scorn Pt. 2 | 100
|
| Rigel VII | A Mother Scorn Pt. 3 | 100
|
| Manger (with J. Rigellian Christ)* OR 12
| A Mother Scorn Pt. 4 | 100
|
| Lucy Fer Sa'tan | A Mother Scorn Pt. 5 | 100
|
* If the prize was already owned, the donuts were the alternate prize.
Trivia Edit
- In this event, the Wailing Wall, which gives the player's XP multiplier a 2.25% boost, could for several hours be bought for just 1000 in-game money. It allowed players new and old to rapidly increase their XP multiplier with ease resulting in extremely fast levelling, enormous amounts of in-game cash, and very easy donuts. The Wailing Wall price was later patched to the correct price (50 donuts) after EA became aware of the mistake.
Gallery Edit
The event's app icon.
Treehouse of Horror XXX Event Guide.
Treehouse of Horror XXX Event End Screen.
Event's Store Icon.
Store Panel.
Decorations Store Panel.
Treehouse of Horror XXX Event ending message.
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