# Howl-O-Scream

Howl-O-Scream is an annual Halloween seasonal event owned and operated by United Parks & Resorts, that occurs during the month of October at Busch Gardens Tampa Bay, Busch Gardens Williamsburg, SeaWorld San Antonio, and as of recently began at SeaWorld Orlando and SeaWorld San Diego. The parks remain operational during the day and transition to Howl-O-Scream at night. The event features haunted houses, "scare zones", and live entertainment.
The event at Busch Gardens Tampa Bay in Tampa, Florida, primarily competes with Universal Studios' Halloween Horror Nights, both of which are known for their grotesque and macabre-themed haunted houses and scare zones. Howl-O-Scream contains intense adult content such as violence, gore and blood and sexual innuendo. As such, it is not intended for children.
While this event is intended for adults only, individuals under the age of 18 are admitted to the event, however, the event is not recommended for children under the age of 13.

## History

The event takes place during select nights in October, typically on the weekends. The event focuses on haunted houses, "scare zones," and shows that pertain to a particular theme. The haunted houses are enclosed areas with specific storylines and highly themed decor. Typically, they lead guests through a somewhat claustrophobic maze with various features designed to startle, confuse or disquiet those who enter by using a combination of strobe lights, fog machines and other accessories of this sort. Scare zones are similar to haunted houses, except they are set in outdoor areas along the main paths. Scare zones also feature a specific theme and contain objects typically used in haunted houses: people dressed up as creatures pertaining to the theme, fog machines, strobe lights, and other decor such as damaged boxes, broken street lights, and similar accoutrements that also pertain to the theme. The shows are similar in structure to the standard stage shows shown at Busch Gardens, however they have a Halloween setting and feature dark humor, grotesque scenery and sexual innuendo.
Howl-O-Scream was not the first Halloween event at Busch Gardens Tampa Bay. One year prior to Howl-O-Scream's debut in the year 2000, the park featured a PG-13 Halloween attraction called Spooky Safari. It had such attractions as an outdoor sprawling haunted experience called "Haunted Jungle Trail", a pyrotechnic/magic show, a pumpkin patch, hayrides, and face-painting for the children.

## Event summaries
### Busch Gardens Tampa Bay

| Name | Year | Icon | Houses | Scare Zones | Shows |
| Spooky Safari | 1999 | None | Haunted Jungle Trail | None | Pumpkin patch Hayrides Face painting Pyrotechnic/magic show |
| Howl-O-Scream | 2000 | Dr. Livingsdoom | Labyrinth of Lost Souls Dark Caverns Haunted Jungle Trail Evening Serengeti Safari Tours | Creatures of the Night Monster Free Zone Woocies | Butch Patrick The Amazing Kreskin: The World's Foremost Mentalist 1961 Cadillac Hearse |
| Howl-O-Scream You wanted scary? Be careful what you ask for! (Originally named "This Time Terror Takes Control" Was renamed after 9/11.) | 2001 | Torment, Mangler, and Pernicia Gloom | Escape from Insanity Screaming Reality Night Stalkers in 3-D Creeper's Crypt The Curse of King Tut's Tomb | Jungle of Doom Inferno Express Grisly Gardens | RIP TV Fiends |
| Howl-O-Scream Face Your Fear | 2002 | Death Spirit | Escape From Insanity Bloody Bayou Tortured Ripper Row The Mortuary Demented Dimensions | Grisly Gardens Cursed Agony Express X-Ecutioners | RIP TV 2 Fiends |
| Howl-O-Scream Fear Has a New Face | 2003 | F.E.A.R. | Escape From Insanity: Residents' Revenge Darkheart's Fear Fair The Mortuary Ripper Row Demented Dimensions Tortured | Grisly Gardens Cursed Agony Express Whiplash Speed Demons | Fiends Eternal Reward Theatre De La Morte: Guillotine Show |
| Howl-O-Scream No Escape. No Mercy. Nowhere Else | 2004 | Hack | Escape From Insanity: Lockdown Darkheart's Fear Fair Till Death Do Us Part Corporate Nightmare The Mortuary Chaos! | Garden of the Cursed Beware! Agony Express Sliderz | Fiends Depraved Reality |
| Howl-O-Scream Your Childhood Fears Don't Go Away. They Just Get Worse | 2005 | An evil jack-in-the-box | After Hours: Dead Of Night Freaked! Deathly Departed The Hunted The Mortuary: The Mourning After The 3rd Dementia | Bone Grinders Restless Death Wicked Woods Widows Walk Root Of All Evil | Fiends Haunt Me Baby One More Time |
| Howl-O-Scream No One 2 Trust (I'm Closer Than You Think) | 2006 | Muse/N/A | Freaked! After Hours: Club Muse Deathly Departed The 3rd Dementia Trapped In The Walls The Hunted | Bone Grinders Pharaoh's Revenge Restless Death Zombie Junction Wicked Woods | Fiends Control-Alt-Deceased The Awakening |
| Howl-O-Scream A New Spin On Horror | 2007 | The Death Jockey | Catch Your Breath Trapped In The Walls The Hunted Radiation Alert 3-D Taste Of Blood After Hours: Club Muse | Zombie Junction Eternal Midnight Masters And Monsters Pharaoh's Revenge Wicked Woods | Fiends Freak Show 2007 Sweet Dreams |
| Howl-O-Scream Raven Twins: Bad Twin. Worse Twin. (Not All Nightmares Happen When You Sleep) | 2008 | The Raven Twins | After Hours: Last Call Trapped in the Walls Eat Your Heart Out Taste of Blood Death Row: Vengeance Reconstruction: The Doctor is In | Wicked Woods Eternal Midnight Zombie Junction Roaming Hordes | Fiends One Wild Night Killer Klownz |
| Howl-O-Scream The House of Vayne (Evil Never Goes Out Of Fashion) | 2009 | Ms. Vayne Anya, Erik, and Elsa | Nightshade Toy Factory Delta Epsilon Delta: Pledge Week Trapped in the Walls 13 Taste of Blood Death Row Vengeance Reconstruction: The Doctor is In | Unearthed Banshees El Carnaval Del Muerto Werewolves Roaming Hordes | Fiends Full Moon Cabaret: The Magic of Jason Byrne Club Envy Howl-O-Scream Shop of Horrors House of Vayne Fashion Show |
| Howl-O-Scream My X (Revenge Rocks) | 2010 | Sylvie the lead singer of MyX | MyX: Revenge Rocks Alone Nightshade Toy Factory: Son of Nightshade Delta Epsilon Delta: Extreme Rush Trapped in the Walls: Ghost Chasers Taste of Blood: A Different Vein Death Row Vengeance: No Escape Deconstruction: The Doctor is Out of Control | Road-Trip Crazed Love Xtreme Fanatics Light of Doom Spiders & Snakes Zombies and Clowns | MyX Live Fiends Blood Relations |
| Howl-O-Scream The Dark Side of the Gardens (Zombies Live Here) | 2011 | None | Zombie Mortuary Nevermore Ultimate Gamble: Vampire Casino Alone Nightshade Toy Factory Death Row Vengeance: Fear The Dead Deconstruction: The Doctor is Out of Control | None Zombie hordes parkwide | Fiends The Midnight Hour |
| Howl-O-Scream The Dark Side of the Gardens (Unlock the Fear Inside) | 2012 | None | Blood Asylum Circus of Superstition 3-D Zombie Mortuary Nevermore Ultimate Gamble Vampire Casino : Condemned Nightshade Toy Factory: Mutation Alone | Faded Memories The Family Plot | Fiends |
| Howl-O-Scream The 13 (Once Every Century, On Precisely The Thirteenth Year, Evil Comes Out To Play) | 2013 | The 13 | Death Water Bayou The Basement Circus Of Superstition 3-D Zombie Mortuary Nevermore Blood Asylum Ultimate Gamble: Reversal Of Fortune The Experiment (Tut's Tomb) | The 13 Harvester's Haunt Pain Lane | Fiends |
| Howl-O-Scream Cursed (Don't Listen) | 2014 | The Cursed Ones | Dead Fall Zombie Containment Unit Death Water Bayou The Basement Circus Of Superstition 3D: The Show Must Go On Zombie Mortuary Asylum The Experiment: The Final Test | None | Fiends |
| Howl-O-Scream Unearthed (We dug too far) | 2015 | Scarlett | Unearthed: Scarlett's Revenge Zombie Containment Unit 15: Moving Targets Dead Fall: Thirst for Blood The Basement Death Water Bayou Circus Of Superstition: The Last Laugh Zombie Mortuary | Unearthed | Fiends |
| Howl-O-Scream Evil Encore (The Show Must Go On) | 2016 | Carver | Unearthed Zombie Containment Unit 15: Moving Targets Motel Hell Death Water Bayou Circus of Superstition 3D: The Last Laugh Zombie Mortuary The Black Spot | Beware | Fiends |
| Howl-O-Scream | 2017 | None | Unearthed Zombie Containment Unit 15: Moving Targets Motel Hell Death Water Bayou The Black Spot Undead Arena: Live Demented Dimensions | Class Deceased Wasteland The Playground Carnie Camp Meat Market | Fiends |
| Howl-O-Scream | 2018 | None | Insomnia Simon's Slaughterhouse Unearthed: Search and Survive Death Water Bayou: Death of the Queen Motel Hell: No Vacancy The Black Spot: Bloodshed | Meat Market Maniac Midway Camp DOA Deadly Toys Hell On Wheels Día De Los Muertos | Fiends |
| Howl-O-Scream 20 Years of Fear | 2019 | Returning Icons from years past | The Residence Insomnia: Patients' Revenge Simon's Slaughterhouse Death Water Bayou: Wrath of the Queen Motel Hell: Infestation The Black Spot: Bloodshed | First Fear Little Nightmares Carpe Noctem Meat Market Maniac Midway Camp DOA Deadly Toys Hell On Wheels Día De Los Muertos | Fiends |
| Cancelled due to delays and restrictions related to the worldwide COVID-19 pandemic. | 2020 | — | — | — | — |
| Howl-O-Scream | 2021 | None | — | — | Fiends |

### Busch Gardens Williamsburg

| Name | Year | Icon | Houses | Scare Zones | Shows |
| Howl-O-Scream | 1999 | Jack | Bloody Hospital Jack's Hidden Secret | Zombie Mortuary | Fiends in the Festhaus |
| Howl-O-Scream | 2000 | | No Escape From Pompeii Transylvania Express Railway | | Fiends in the Festhaus The Laser Fright Show Starfright Orchestra |
| Howl-O-Scream | 2001 | | No Escape From Pompeii | | Fiends in the Festhaus Starfright Orchestra |
| Howl-O-Scream | 2002 | | No Escape From Pompeii | | Fiends in the Festhaus Starfright Orchestra |
| Howl-O-Scream | 2003 | | Curse of Pompeii Distorted Dimension Mystical Mayhem Nightmare Express Sea Dog Cemetery Sleepless Hollow Manor Twisted Terror | The Bone Zone Festa Dementia Piratical Purgatory | Creepy Creatures Fiends in the Festhaus Fright Lights Jack is Back Monster Stomp Spooky, Kooky, Dragons and Friends Starfright Orchestra |
| Howl-O-Scream | 2004 | | Curse of Pompeii Distorted Dimension Nightmare Express Sea Dog Cemetery Sleepless Hollow Manor | Festa Dementia Monster Street Party Piratical Purgatory Werewolf Reserve | Aaron Radatz's Mind Over Magic Fiends in the Festhaus Jack is Back Monster Stomp Spooky, Kooky, Dragons and Friends Starfright Orchestra |
| Howl-O-Scream | 2005 | | Curse of Pompeii Jack's Nightmare Express Last Laugh Industries Sea Dog Cemetery Sleepless Hollow Manor | Festa Dementia Monster Street Party Piratical Purgatory Werewolf Reserve | Fiends in the Festhaus Jack is Back Monster Stomp Nightscares: Awakened by Magic Spooky, Kooky, Dragons and Friends Starfright Orchestra |
| Howl-O-Scream | 2006 | | Curse of Pompeii Last Laugh Industries Nightmare Express Sleepless Hollow Manor Wicked Woods | Monster Street Party Piratical Purgatory Werewolf Reserve | Fiends in the Festhaus Jack is Back Monster Stomp Rockin' Eve's Countdown to Midnight Starfright Orchestra |
| Howl-O-Scream | 2007 | | The Beaten Path Curse of Pompeii Jack's Pumpkin Express Grimm Hollows: Deadtime Stories Tormented Tales Wicked Woods | The Never After | Festhaus Fright Night Jack is Back Monster Stomp Starfright Orchestra |
| Howl-O-Scream: 10 Years of Fear | 2008 | | The Beaten Path Curse of Pompeii Jack's Pumpkin Express Grimm Hollows: Deadtime Stories Masquerage: RSVP If You Dare Tormented Tales Wicked Woods: Ripper Row | The Never After Piratical Purgatory Werewolf Reserve | Festhaus Fright Night Jack is Back Monster Stomp: Revamped Rockin' Eve's Wrath: Countdown to Midnight Starfright Orchestra |
| Howl-O-Scream | 2009 | | Bitten Catacombs Cavern of Darkness Cursed The Hunted Revenge of Pompeii | Harvest Hollow Mischief and Mayhem The Moors Spell Bound Strangers Beware The Watchers Werewolves | The Count's Halloween Spooktacular FrankenRock Jack is Back Monster Stomp: Revamped Movies of the Macabre |
| Howl-O-Scream: The Scare is Everywhere | 2010 | | Bitten Catacombs Cursed Harvest Hollow The Hunted Revenge of Pompeii | | The Count's Halloween Spooktacular (Count Von Count's Dining Spooktacular) FrankenRock Jack is Back Monster Stomp: Revamped Movies of the Macabre |
| Howl-O-Scream: The Dark Side of the Gardens | 2011 | | Bitten Catacombs Dead Line Fear Fair Funny Bone Buffet (dining) 13: Your Number's Up | Grin and Scare It Scavengers Stitchin' Time Unleashed Widow Makers | Countdown to Halloween (Count Von Count's Dining Spooktacular) Fiends Jack is Back Monster Stomp: Revamped |
| Howl-O-Scream: The Dark Side of the Gardens | 2012 | | Bitten Catacombs Dead Line Fear Fair Funny Bone Buffet (dining) Root of All Evil 13: Your Number's Up | Scare Hordes | Countdown to Halloween (Count Von Count's Dining Spooktacular) Dig It Up! Fiends Night Beats |
| Howl-O-Scream | 2013 | | Bitten Blood Banquet (dining) Buccaneer Galley (dining) Cut Throat Cove Catacombs Dead Line Root of All Evil 13: Your Number's Up | Demon Street Ripper Row Ports of Skull Vampire Point | Fiends (Fright Feast [dining]) Monster Stomp on Ripper Row Night Beats |
| Howl-O-Scream | 2014 | | Bitten Catacombs Cut Throat Cove Dead Line Root of All Evil 13: Your Number's Up | Demon Street Ripper Row Ports of Skull Vampire Point Wendigo Woods | Fiends Monster Stomp on Ripper Row Night Beats |
| Howl-O-Scream: Unearthed | 2015 | Scarlett | Bitten Catacombs Cornered Cut Throat Cove Dead Line Lumberhack Unearthed: Scarlett's Revenge | Demon Street Ripper Row Ports of Skull Vampire Point Wendigo Woods | Fiends Monster Stomp on Ripper Row Night Beats |
| Howl-O-Scream The show must go on | 2016 | | Bitten Catacombs Circo Sinistro Cornered Dead Line Lumberhack Unearthed: Scarlett's Revenge | Demon Street Ripper Row Sideshow Square Vampire Point Wendigo Woods | Fiends Monster Stomp on Ripper Row Night Beats Starfright Orchestra |
| Howl-O-Scream | 2017 | | Catacombs Circo Sinistro Cornered Dead Line Frostbite Lumberhack Unearthed: Scarlett's Revenge | Axe Alley Demon Street Ripper Row Sideshow Square Vampire Point | Fiends Monster Stomp on Ripper Row Night Beats: Revamped Starfright Orchestra |
| HOS XX | 2018 | | Case of the Haunted Hotel (escape room) Circo Sinistro Cornered Demented Dimensions Dystopia Frostbite Jack's Nightmare Room (escape room) Lumberhack The Vault XX | Axe Alley Fool's Court Garden of Souls Ripper Row Sideshow Square Vampire Point | Fiends Monster Stomp on Ripper Row Night Beats: Revamped |
| Howl-O-Scream | 2019 | | Circo Sinistro Demented Dimensions Dystopia Frostbite Grave Obsession (escape room) Jack's Twisted Terror (escape room) Lumberhack The Vault: Overtaken | Axe Alley Fool's Court Garden of Souls Ripper Row Sideshow Square Vampire Point | Jack is Back Monster Stomp on Ripper Row Night Beats: Revamped |
| Halloween Harvest | 2020 | | | Roaming Ghouls & Goblins | |
| Howl-O-Scream | 2021 | | Circo Sinistro Dystopia Killarney Diner Nevermore Witch of the Woods | Festa Italia Party Zone France Party Zone Garden of Souls Hexed Hollow Meat Market Ripper Row Roaming Hack Pack | Jack is Back Monster Stomp on Ripper Row Phantoms of the Festhaus Skeletones |
| Howl-O-Scream | 2022 | | Death Water Bayou Inferno Killarney Diner Nevermore: Chapter 2 Witch of the Woods | Dead A-Head DJ Marie Antoinette Party Zone DJ Masquerade Party Zone Gorgon Gardens Meat Market Ripper Row Roaming Hack Pack Scary Tale Road | Jack is Back Monster Stomp on Ripper Row Phantoms of the Festhaus Skeletones ZomBeats |
| Howl-O-Scream | 2023 | | Death Water Bayou: Full Moon Killarney Diner: Infested Lost Mines: The Descent Nevermore: Chapter 3 Witch of the Woods: Scorched | Fest-Evil Gorgon Gardens Meat Market Ripper Row Scary Tale Road | Jack is Back Monster Stomp on Ripper Row Phantoms of the Festhaus Skeletones |
| Howl-O-Scream: 25 Years | 2024 | | Clown Town Death Water Bayou: Morte Killarney Diner: Condemned Lost Mines: Bloodstone Monster Manor | The Bash Fest-Evil Gorgon Gardens Ripper Row Scary Tale Road Stalker Street | Fiends: The FREAKquel Monster Stomp on Ripper Row Phantoms of the Festhaus Skeletones |

### SeaWorld San Antonio

| Name | Year | Houses | Scare Zones | Shows |
| see Halloween Spooktacular | 2008–2012 | | | |
| Howl-O-Scream The Scare is Everywhere | 2013 | | | Jack is Back |
| Howl-O-Scream Cursed | 2014 | | | Jack is Back |
| Howl-O-Scream Unearthed | 2015 | | | Jack is Back |
| Howl-O-Scream Evil Encore | 2016 | | | Jack is Back |
| Howl-O-Scream The Dark Side of the Gardens | 2017 | Unearthed: Frightmeer forest Blood Island Karver's Kradle: House of Dolls Dark Side of the Gardens Prey I.C.U | Shadow Street Werewolf Alley Vampire Point Demon Street Hunter's Hangout Psycho Street | Jack is Back |

## Haunted house locations
### Busch Gardens Tampa Bay

The following list contains the facilities used by Busch Gardens Tampa Bay to host the haunted houses for Howl-O-Scream. They might be warehouses, existing queue lines, or temporary buildings.
| Name | Description | Houses Hosted |
| Employee Parking Lot | A large parking lot for BGT team members is located in a backstage area behind the Marrakesh Theater and part of the Bird Gardens land. During the Fall, team members were required to park elsewhere as the space was used for Howl-O-Scream. The space, however, has not been used for Howl-O-Scream since 2005. | Labyrinth of Lost Souls (2000), The Mortuary (2002), The Mortuary (2003), The Mortuary (2004), The Mortuary: The Mourning After (2005) |
| Bird Gardens Pavilion | The open area in the Bird Gardens land houses an animal exhibit featuring flamingos. In the past, large tents were constructed just for Howl-O-Scream, allowing compatible space for haunted mazes. | Screaming Reality (2001), Bloody Bayou (2002), Darkheart's Fear Fair (2003), Darkheart's Fear Fair (2004), Freaked! (2005), Freaked! (2006), Alone (2010), Alone (2011), Alone (2012), The Basement (2013), The Basement (2014), The Basement (2015), Motel Hell (2016), Motel Hell (2017), Motel Hell: No Vacancy (2018), Motel Hell: Infestation (2019), Witch of the Woods(2021/2022/2023) |
| Nairobi Pavilion | A long, rectangle shaped pavilion is located next to Jambo Junction in the Nairobi area. For Howl-O-Scream, the Pavilion is converted into a haunted house. In 2004, the pavilion was damaged by a tornado, and had to be rebuilt while its would-be haunted house, Corporate Nightmare, was moved to Tut's Tomb. | Nightstalker in 3-D (2000), Ripper Row (2002), Ripper Row (2003), The Hunted (2005), The Hunted (2006), The Hunted (2007), Death Row Vengeance (2008), Death Row Vengeance (2009), Death Row Vengeance: No Escape (2010), Death Row Vengeance: Fear the Dead (2011), Circus of Superstition: 3D (2012), Circus of Superstition: 3D (2013), Zombie Containment Unit 15 (2014) |
| Ubanga Banga Bumper Cars | The Ubanga Banga Bumper Cars attraction is located in the Congo area of the theme park. During the event. the vehicles used in the attraction are temporarily removed for haunted houses. The space was used for Haunted houses until 2010. But in 2022 Crash test clowns was introduced where team members dressed as clowns would play bumper cars with you | Tortured (2002), Tortured (2003), Till' Death Do Us Part (2004), Deathly Departed (2005), Deathly Departed (2006), Taste of Blood (2007), Taste of Blood (2008), Taste of Blood (2009), Taste of Blood: A Different Vein (2010) |
| Pantopia Warehouse | A storage space building located between the Pantopia Theater and Sand Serpent attractions. It became a spot for haunted mazes. | Trapped in the Walls (2006), Trapped in the Walls (2007), Trapped in the Walls (2008), Trapped in the Walls (2009), Trapped in the Walls: GhostChasers (2010), Zombie Mortuary (2011), Zombie Mortuary (2012), Zombie Mortuary (2013), Zombie Mortuary (2014), Zombie Mortuary (2015), Zombie Mortuary (2016), Demented Dimensions (2017) The Residence Home for the holidays (2022/2023) |
| Akbar's Adventure Queue | Akbar's Adventure was a simulator ride at the Egypt area of the park. In 1998 the attraction was shut down and only operated seasonally due to its manufacturer going out of business, allowing for Howl-O-Scream mazes to take place throughout its unused queue areas. In 2007, the attraction was dismantled when it became impossible to continue running it; however, haunted mazes still continue to call the building home during the event. | Demented Dimensions (2002), Demented Dimensions (2003), Chaos! (2004), The 3rd Dementia (2005), The 3rd Dementia (2006), Radiation Alert 3-D (2007), Reconstruction: The Doctor is In (2008), Reconstruction: The Doctor is In (2009), Deconstruction: The Doctor is Out of Control (2010), Deconstruction: The Doctor is Out of Control (2011), Blood Asylum (2012), Blood Asylum (2013), Blood Asylum (2014), Zombie Containment Unit 15: Moving Targets (2015), Zombie Containment Unit 15: Moving Targets (2016), Zombie Containment Unit 15: Moving Targets (2017), Insomnia (2018), Insomnia: Patient's Revenge (2019). Stranglewood estate (2022/2023) |
| Tut's Tomb | An attraction located in the Egypt area of the park. Its first haunted house, in 2001, was portrayed to be an evil version of the Tut's Tomb attraction itself. In 2004, "Corporate Nightmare" was relocated to Tut's Tomb after a tornado damaged its former location at the Nairobi Pavilion. Following the closure of the Tut's Tomb attraction in 2014 to make way for the Cobra's Curse roller coaster, it is now impossible for future haunted houses to be constructed in this area of the park. | Curse of King Tut's Tomb (2001), Corporate Nightmare (2004), The Experiment (2013), The Experiment: The Final Test (2014) |
| Myombe Reserve | An animal exhibit located in the Crown Colony area with an emphasis on protecting Gorilla habitats. An outdoor haunted house was constructed on the attraction's pathways in 2000. For the following year, 2001, the outdoor maze was replaced by a smaller scare zone which did not cover as much of the attraction. | Haunted Jungle Trail (1999–2000) |
| Serengeti Safari Tours | An added cost sightseeing tour located on the Edge of Africa. In 2000, it was "horrified" as part of the first official Howl-O-Scream event. | Evening Serengeti Safari Tours (2000) |
| Curiosity Caverns | This cave-themed animal attraction is located in the Nairobi area of the park. It was horrified at Howl-O-Scream 2000, and once again served as a haunted house location in 2001. | Dark Caverns (2000), Creeper's Crypt (2001) |
| Orchid Canyon Building | The Orchid canyon Building was used for the park's former Tile exhibit museum. Starting in 2009, it was used to house haunted mazes for Howl-O-Scream. | Delta Epsilon Delta: Pledge Week (2009), Delta Epsilon Delta: Extreme Rush (2010), Nevermore (2011), Nevermore (2012), Nevermore (2013), Deadfall (2014), Deadfall: Thirst for Blood (2015), The Black Spot (2016), The Black Spot (2017), The Black Spot (2018), The Black Spot (2019) |
| Crown Colony Skyride Station | The CC Skyride station serves as the main entrance to the SkyRide from the southern area of the theme park. Haunted Houses which take place in the station have an entrance at the former Veldt Monorail entrance of the station. The queue then weaves around to an employees only area underneath the station where the maze begins. Due to the construction and opening of the Cheetah Hunt roller coaster in 2011, it is now impossible for any future haunted houses to be constructed in this area of the park.. | Escape From Insanity (2001), Escape From Insanity (2002), Escape From Insanity: Resident's Revenge (2003), Escape From Insanity: Lockdown (2004), After Hours: Dead of Night (2005), After Hours: Club Muse (2006), After Hours: Club Muse (2007), After Hours: Last Call (2008), Nightshade Toy Factory (2009) |
| Gwazi Event Yard | A large open yard located next to the former Gwazi roller coaster is used specially for the park's annual events, such as Viva la Musica, Summer Nights and Christmas Town. During Howl-O-Scream, haunted houses are built on the yard, used until 2019 due to construction of Iron Gwazi. | Catch Your Breath (2007), Eat Your Heart Out (2008), 13 (2009), MyX: Revenge Rocks (2010), Ultimate Gamble: Vampire Casino (2011), Ultimate Gamble: Condemned (2012), Ultimate Gamble: Reversal of Fortune (2013), Circus of Superstition 3-D: The Show Must Go On (2014), Circus of Superstition 3-D: The Last Laugh (2015), Circus of Superstition 3-D: The Last Laugh (2016), Undead Arena: Live (2017), Simon's Slaughterhouse (2018), Simon's Slaughterhouse (2019) |
| Morocco/Nairobi Building | A new indoor location was built behind Zagora restaurant, next to the Iron Gwazi roller coaster, to serve as a site for Haunted mazes. | Nightshade Toy Factory: Son of Nightshade (2010), Nightshade Toy Factory (2011), Nightshade Toy Factory: Mutation (2012), Death Water Bayou (2013), Death Water Bayou (2014), Death Water Bayou (2015), Death Water Bayou (2016), Death Water Bayou (2017), Death Water Bayou: Death of the Queen (2018), Death Water Bayou: Wrath of the Queen (2019) |
| Gwazi Queue | The former Gwazi wooden roller coaster operated in the Morocco area of the park from 1999 until 2015. Following the attraction's closure in early 2015, the space now allows for HOS houses to be built within the ride's former queue areas and ground level. This location was retired after the 2018 event due to construction for the ride's rebranding as Iron Gwazi. | Unearthed: Scarlett's Revenge (2015), Unearthed (2016), Unearthed (2017), Unearthed: Search and Survive (2018) |

## Year-by-year evolution
### Busch Gardens Tampa Bay

The year 2000 saw the debut of Howl-O-Scream. The event replaced a smaller event called "Spooky Safari," expanding on an event oriented primarily toward younger children into one that offered Halloween-themed attractions, shows, and events for teens and adults as well. The debut event opened with four haunted experiences: two haunted houses, one haunted trail, and one haunt which would be characterized as a hay ride had it not been in a theme park. Shows included a celebrity appearance by Butch Patrick of The Munsters and the mentalist, The Amazing Kreskin. There was one park-wide scare zone. The 1961 Cadillac hearse from TV's Dr. Paul Bearer's Creature Feature shows was also on display. In an effort to maintain its children's demographic, a "Monster Free Zone" was included, featuring face painting, arts and crafts and hay rides.
In 2001, Howl-O-Scream added new haunted mazes, scare zones, and shows, and re-positioned the event toward an older teen and young adult demographic. The park's "Land of the Dragons" children's area continued to offer fare for younger children.
There were five haunted houses, with no carryovers from 2000. There were three scare zones, with one being the haunted trail from 2000. Two shows were produced by the park, replacing the celebrity shows of the year previous. This year scare zones were not listed on the park map, although there were three.
In 2002, Howl-O-Scream featured six haunted houses, with only one holdover from the previous year. The same overall concept and demographic target was also retained. There were four scare zones: two holdovers and two new. The haunted trail was retired. The two shows were both holdovers from 2001.
The park further refined their formula for 2003, with a focus on furthering their backstory lines. There were four haunted houses and one haunted trail, for a total of five experiences: four from the previous year, one new house and with one from 2002 retiring. The scare zones were five, three from 2002 and two new. There were three shows: one holdover, and one new show, both produced by the park. The third was brought in by a vendor.
Howl-O-Scream returned in 2004. However, multiple storms from the 2004 Atlantic hurricane season delayed the start of the event. Hurricane Jeanne was the most damaging, causing a possible F1 tornado touchdown on the original building for the Corporate Nightmare haunted house, destroying it. The hurricane itself also caused moderate damage to the props in the Garden of the Cursed and Agony Express scare zones. Corporate Nightmare was moved to Tut's Tomb on the second night of the event, and the props in the two scare zones were rebuilt. There were five haunted houses, three being new, plus one haunted trail. There were four scare zones: three being new. There were two shows, one of which was new.
2005 featured six haunted houses, five scare zones and two shows. Only one haunted house had appeared the year before. All of the scare zone themes were new, and one of the two shows was new. The "Hunted" haunted house in Nairobi Pavilion is said to be the first time the "victim" scare was used. It involves a cast member dressed in plain clothes and seemingly snatched violently from the crowd.
A small fire started in the front of "The Hunted" haunted house one evening about halfway through the run. The house was evacuated and closed while it checked and aired out; no injuries were reported and the house reopened within a matter of hours. The fire was traced to a guest's cigarette, put out carelessly on a burned prop couch in the opening hallway of the house. Security in the lines was increased to avoid further incidents.
Howl-O-Scream 2006 featured six haunted houses, one of which was new. There were five scare zones, two of which were new. Three shows rounded out the offerings, of which two were new.
2007 saw six haunted houses again, with three of them being new. Five scare zones (two new) and three shows, two being new. There was also the addition of five mini-scare zones, which were much smaller free-roaming zones which were not listed on park maps or the official website. They primarily involved performers intermingling with guests. They would later inspire the "Roaming Hordes" park-wide scare zones in 2008, 2009, and 2011. The event icon for 2007, "The Death Jockey", had his exploits chronicled in comic book form on the HOS website.
2008 consisted of six haunted houses, three being new; four scare zones, one of which was new; and three shows, with two being new. The new scare zone was actually the "Roaming Hordes" descendant of the mini-zones the previous year.
This year also represented Busch's first use of their HOS website to build interest for the event all year by using a "teaser" strategy, along with occasional updates.
The year 2009 was Howl-O-Scream's tenth anniversary, featuring seven haunts, of which four were holdovers and three were new. Five scare zones were mounted, four of which had new themes. There were five shows, four of which were new. One of the new shows featured the Magic of Jason Byrne, an award-winning stage magician. Also new was Club Envy, an adults only nightclub, which was an added-cost option.
In 2010 there were eight haunted houses, two of which were new; six scare zones, all of which were new, and three shows, two of which were new. The Alone haunted house is an added cost attraction, with the option for the guest to experience it alone or with up to three other people.
2011 featured seven haunted houses, three being new. The Alone premium house continued this year. There are no scare zones, per se, as the actors roam park wide. There are two shows, one being new.
2012 included seven haunts, two new; two new scare zones and one show. The Faded Memories zone was a retrospective of the last 13 years of Howl-O-Scream.
2013 included eight haunted houses, of which three were new. There were three scare zones, all of them new. There was one show.
In 2014, there were eight haunted houses, no scare zones, and one show. Three of the haunted houses were new.
2015 consisted of seven haunted houses, one scare zone, and one show. Two of the haunts were new.

### Busch Gardens Williamsburg

In 2014, there were five haunted houses, a park-wide scare zone, and two shows.
2015 consisted of seven haunted houses, five scare zones, and three shows. Three of the haunts were new.