Terror Radius

		Maybe it is the will to survive that makes me even more alert to sounds. Sight is limited in this darkened part of the world. In this case their heartbeats. Not my own, but instead the Killers' as they close in on me. I just hope that they do not pick up on mine as my heart races for every thump I can hear even clearer.
		~ Benedict Baker's Journal, Nov. 1896

		Again, my senses have proven to be the keys to my survival. If my heartbeat rings in my ears, the Killer is close. If I see the "red stain" in my surroundings, the Killer is even closer!
		~ Mysterious Note

The Terror Radius is an integral Game Mechanic in Dead by Daylight .

Overview

The Terror Radius is a feature intended to induce fear and anxiety in Survivors, causing them to experience The Heartbeat, a sound effect triggered whenever Survivors enter the Killer's Terror Radius and intensifies with proximity.

Terror Radius

For most Killers in Dead by Daylight, their Terror Radius is decided by their base Movement speed: 32 metres for those moving at 4.6 m/s and 24 metres for those moving at 4.4 m/s.

However, some Killers do not follow that general rule and either have a different Terror Radius altogether or even multiple Terror Radii, as can be seen in the Table below.

Heartbeat

The Terror Radius causes a Survivor's very own heart to beat audibly.
The Heartbeat sound effect will get louder and quicker the closer in proximity the Survivor is to the Killer.
That it is indeed their own Heartbeat and not the Killer's, as Benedict's journal entry would imply, is confirmed by a Mysterious Note found in The Fog and by the actually visible, beating heart Dead by Daylight Mobile introduced into the Survivor model as a replacement for the audible Heartbeat in cases of Players playing without sound.

Terror Radius Music

The Terror Radius Music plays for Survivors whenever they are inside the Killer's Terror Radius.
The music gets progressively louder and more aggressive the closer in proximity the Killer is to them, but outside of a Chase.

Older Killers generally use one of 6 available generic Terror Radius Music themes, whereas newer and reworked Killers have their own, unique Terror Radius Music.

The Terror Radius Music has 4 layers to it; whenever the distance between a Killer and a Survivor undercuts the next quadrant of the maximum Terror Radius distance, the music seamlessly transitions to the next layer, which can be used to accurately gauge a Killer's proximity, based on the knowledge of a Killer's default Terror Radius range, given that the Killer does not use any Terror-Radius-altering Unlockables.

Chase Music

Killers do not hear their own Terror Radius music, instead they hear the general background music that plays on all Maps.
It is only when a Survivor initiates a Chase that the background music will be replaced by the Chase Music.
For all Killers that do not use either of the three generic Chase Music themes, the Chase Music is the same as the fourth layer of the Terror Radius music Survivors hear, which for them plays when the Killer is at closest proximity.

Two Killers were an exception to this and had a unique Chase Music, until that was changed to the fourth layer of their Terror Radius as well: The Demogorgon and The Oni.
Their unique Chase Music is still present in the files in the Table below.

Akin to the Terror Radius Music, older Killers use one of 3 available generic Chase Music themes, whereas newer and reworked Killers have their own, unique Chase Music.

Lullabies

Some Killers, in addition to their Terror Radius, feature what is referred to as a Lullaby.
The name of the mechanic was derived from The Huntress' Lullaby, as she was the first Killer to feature one, and it is a literal children's lullaby in Russia.
Some newer Killers may have alternate names for the mechanic, but those are still considered Lullabies as far as game mechanics are concerned.

A Lullaby works differently to the Terror Radius in the following ways:

• Lullabies are non-directional.
• Lullabies have a fixed, unalterable range.
  • Lullabies are unaffected by Unlockables changing the range of the Terror Radius.
  • Lullabies cannot be suppressed with the Undetectable Status Effect.

The following Killers have a Lullaby:

• The Huntress : hums a literal Lullaby
• The Nightmare : emits a Nursery rhyme in the Dream World
• The Twins : Victor's Shrieks
• The Trickster : emits a Melody

Fake Terror Radii

Some Killers have the ability to alter their Power in a way that produces a fake Terror Radius, which serves to confuse a Survivor.

Fake Terror Radii do not interact with any Unlockables, such as Perks like Diversion or Stake Out (charging up Tokens) or Starstruck (triggering the Exposed Status Effect).

Examples of a fake Terror Radius is that emitted by The Hag's Mud Phantasms or the Illusionary Terror Radius induced by The Doctor's "Calm" Add-ons.

Undetectable Status Effect

There are several Unlockables, as well as Killer Powers, that can temporarily cloak a Killer's Terror Radius, all of which apply the Undetectable Status Effect.

• The Wraith cloaking himself and entering the Spirit World.
• The Hillbilly using the Leafy Mash or the Iridescent Brick .
• The Nurse using the "Bad Man's" Last Breath .
• The Shape while remaining in Evil Within I.
• The Hag using the Grandma's Heart .
• The Huntress using the Wooden Fox .
• The Pig crouching.
• The Ghost Face using Night Shroud.
• The Demogorgon after traversing the Upside Down.
• The Executioner using the Obsidian Goblet .
• The Blight using the Vigo's Journal .
• The Twins using the Silencing Cloth .
• The Nemesis using the Serotonin Injector .

List of Terror Radii & Lullabies

Killer	Type	Radius	Affected by Unlockables*	Terror Radius Music	Chase Music	Lullaby (if available)
Trapper	Terror Radius	32 metres	Yes	Themes 01-06	Themes 01-03	No Lullaby
Wraith	Terror Radius	32 metres	Yes
Hillbilly	Terror Radius	32 metres	Yes
Nurse	Terror Radius	32 metres	Yes	Themes 01-06	Themes 01-03
Shape	Terror Radius	6 metres (Evil Within I)	Yes
		16 metres (Evil Within II)
		32 metres (Evil Within III)
Hag	Terror Radius	24 metres	Yes	Themes 01-06	Themes 01-03
Doctor	Terror Radius	32 metres	Yes
Huntress	Terror Radius	20 metres	Yes	Themes 01-06	Themes 01-03
	Lullaby (Hum)	45 metres	No
Cannibal	Terror Radius	32 metres	Yes			No Lullaby
Nightmare	Lullaby (Nursery rhyme)	32 metres (Dream World)	No
	Terror Radius	32 metres	Yes
Pig	Terror Radius	32 metres	Yes			No Lullaby
Clown	Terror Radius	32 metres	Yes
Spirit	Terror Radius	24 metres	Yes	Themes 01-06	Themes 01-03
Legion	Terror Radius	32 metres	Yes
		40 metres (Feral Frenzy)
Plague	Terror Radius	32 metres	Yes
Ghost Face	Terror Radius	32 metres	Yes
Demogorgon	Terror Radius	32 metres	Yes
Oni	Terror Radius	32 metres	Yes
Deathslinger	Terror Radius	24 metres	Yes
Executioner	Terror Radius	32 metres	Yes
Blight	Terror Radius	32 metres	Yes
Twins	Terror Radius	32 metres (Charlotte)	Yes
	Lullaby (Shriek)	12 metres (Victor, idle)	No
		14 metres (Victor, attached)
		18 metres (Victor, controlled)
Trickster	Terror Radius	24 metres	Yes
	Lullaby (Melody)	8-40 metres	No
Nemesis	Terror Radius	32 metres	Yes			No Lullaby

Terror Radius Themes 01-06

Theme 01
Theme 02
Theme 03
Theme 04
Theme 05
Theme 06

Chase Music Themes 01-03

Theme 01
Theme 02
Theme 03

Unlockables

Add-ons

	Grandma's Heart	The cold heart of the cannibal village elder. The trapped life essence within unlocks tremendous potential in The Hag's power. When a Survivor triggers a Phantasm Trap, the following effects apply for the triggered duration: The Hag's Terror Radius is reduced to 0 metres. The Mud Phantasm's Fake Terror Radius is increased to 16 metres. "Bring me another slice of the girl." — Grandma	Blackened Catalyst
	Vigo's Journal	The journal of a man who claimed to have returned from The Void. The knowledge within has practical applications. Gain the Undetectable Status Effect while Rushing. "In a wasteland of forgotten dreams and endless routine, the man with a way out is God." — Talbot Grimes	Blighted Corruption
	Silencing Cloth	A coarse strip of cloth that a five-year-old Charlotte would put in her mouth. Stopped her from screaming when witch hunters were nearby. After waking from her Dormant State, Charlotte is granted the Undetectable Status Effect for 20 seconds. "I don't like this game anymore, Mother..." — Charlotte Deshayes	Blood Bond
	"Calm" - Class I	An ECT procedure using a deep wavelength that soothes various mental illnesses. With Carter's Spark as its source, this procedure can cause mild anxiety in the patient. Slightly increases Terror Radius while Static Blast is ready. Slightly decreases Terror Radius while Static Blast is on cool-down. Survivors with Madness suffer from the Affliction of Calm: Madness II: Intermittently causes Survivors to hear a distant Illusionary Terror Radius. Madness III: Constantly causes Survivors to hear a distant Illusionary Terror Radius.	Carter's Spark
	"Calm" - Class II	A risky ECT procedure using a deep wavelength that soothes various mental illnesses. With Carter's Spark as its source, this procedure can cause moderate anxiety in the patient. Moderately increases Terror Radius while Static Blast is ready. Moderately decreases Terror Radius while Static Blast is on cool-down. Survivors with Madness suffer from the Affliction of Calm: Madness II: Intermittently causes Survivors to hear a distant Illusionary Terror Radius. Madness III: Constantly causes Survivors to hear a distant Illusionary Terror Radius. "Electro-convulsive therapy is one of the safest medical procedures." — Léry's Memorial Institute
	"Calm" - Carter's Notes	An experimental version of the ECT procedure annotated by Doctor Herman Carter himself. Uses a deep wavelength that soothes various mental illnesses. With Carter's Spark as its source, this procedure causes uncontrollable fear and anxiety in the patient. Considerably increases Terror Radius while Static Blast is ready. Considerably decreases Terror Radius while Static Blast is on cool-down. Survivors with Madness suffer from the Affliction of Calm: Madness II: Intermittently causes Survivors to hear a distant Illusionary Terror Radius. Madness III: Constantly causes Survivors to hear a distant Illusionary Terror Radius. "Higher quality seizures trigger catatonia. At least it gives me peace for the time it lasts." — Herman Carter
	Iridescent King	A glass-like king chess piece moulded from The Fog itself. The Entity's trace reverberating within can break the most powerful minds. Survivors with Madness suffer from the following Afflictions: Calm, Discipline, Order, and Restraint. Intermittently causes Survivors to hear a distant Illusionary Terror Radius. While in a Chase, Survivors perceive an Illusionary Red Stain and Terror Radius as though The Doctor were directly behind them. This effect persists for 6 seconds after the Chase ends in Madness II and is constantly active in Madness III. Broken Pallets may appear to be replaced with Illusionary Pallets that persist until approached. A new Illusionary Pallet is generated at the location of a random Broken Pallet every 20 seconds. Moderately increases Illusionary Doctor duration. The Doctor shares in his patients' Madness in order to see the Illusionary Red Stain as well as the Auras of Illusionary Doctors and Illusionary Pallets. "Gazing in the iridescent glass is plunging oneself into madness."
	Big Buckle	A glorious, shining belt worn by many good ol' country boys. Decreases the Terror Radius by 8 metres when the Chainsaw is overheating.	Chainsaw
	Leafy Mash	A wet mash of fragrant leaves that mask a hunter's scent when stalking prey. Gain the Undetectable Status Effect for 15 seconds after landing a Chainsaw hit.
	Iridescent Brick	Once representative of Max Junior's confinement, this was the first brick to fall when his room's barricade came crashing down. After maintaining a Chainsaw Sprint for 2 seconds, gain the Undetectable Status Effect until you stop sprinting. "What kinda ruckus you stirrin', boy?" — Max Thompson Sr.
	Dead Rabbit	A grey rabbit which has been opened from neck to tail. Moderately decreases The Shape's Terror Radius in Evil Within II . Moderately increases The Shape's Terror Radius in Evil Within III .	Evil Within
	Iridescent Button	A glass-like button moulded from The Fog that captures The Legion's likeness. The surface is warm and reverberating with The Entity's power. During Feral Frenzy: The Legion's Terror Radius affects the entire Map. Any Pallets you vault are immediately broken. This effect lasts until the Power gauge is depleted. "The youth consumed by the iridescent glass magnifies and widens the reach of The Entity."	Feral Frenzy
	Wooden Fox	Roughly carved, this fox statuette is no more than a few inches. A reminder that stealth and cunning is as effective as raw power. Grants the Undetectable Status Effect for 15 seconds when reloading.	Hunting Hatchets
	Violet Waxcap	A dark fleshed mushroom from the Upside Down that allows The Demogorgon to telepathically distort the senses in its prey. Slightly increases Undetectable Status Effect duration after emerging from Portals.	Of the Abyss
	Vermilion Webcap	A bright red poisonous mushroom from the Upside Down. Moderately increases Undetectable Status Effect duration after emerging from Portals. "Still experimenting with this specimen, so far our results are inconsistent." — Hawkins National Laboratory
	Red Moss	A psychedelic moss that grows on tree barks in the Upside Down. The Demogorgon emerges from Portals silently, but more slowly. Tremendously increases Undetectable Status Effect duration after emerging from Portals. "Consuming its leaf enhances athletic performance and causes euphoria." — Hawkins National Laboratory
	Obsidian Goblet	An ancient looking goblet carved from pure obsidian. The Executioner gains the Undetectable Status Effect when standing on a Rites of Judgement trail. "Forgive me for waking you. But without you, I just can't go on." — James Sunderland	Rites of Judgement
	"Bad Man's" Last Breath	A powerful last breath snatched from Crotus Prenn Asylum Patient known as the "Bad Man". In the hands of The Nurse, it jolts with intensity. After hitting a Survivor with a Blink Attack, The Nurse is granted the Undetectable Status Effect for 16 seconds. "Bad Man's" Last Breath can only be triggered once every 60 seconds.	Spencer's Last Breath
	Marshal's Badge	A silver badge taken from the corpse of a lawman in Arizona Territory who interfered with the Hellshire Gang's bounties. Slightly decreases The Deathslinger's Terror Radius while aiming down the Speargun's sights. Slightly decreases The Deathslinger's Movement speed while aiming down the Speargun's sights. "Get your prayers in, you'll be swinging by noon." — Caleb Quinn	The Redeemer
	Gold Creek Whiskey	Warm comfort in a bottle that quelled Caleb's anger and slowed his step. Moderately decreases The Deathslinger's Terror Radius while aiming down the Speargun's sights. Moderately decreases The Deathslinger's Movement speed while aiming down the Speargun's sights. "A smooth taste for the rugged frontier." — Gold Creek Advertisement, 1876
	"The Beast" - Soot	The Kunwulju symbol, representing the Realm of Fear, is finger-drawn out of soot on the body of the Bell. The Wraith's Terror Radius is no longer suppressed when cloaked. Grants 100 % Bonus Bloodpoints for Stalking and Surprise Attack Score Events.	Wailing Bell
	"The Ghost" - Soot	The Khugwemuu symbol, representing the spirit world, is finger-drawn out of soot on the body of the Bell. After uncloaking, The Wraith's Terror Radius and Red Stain will remain suppressed for 6 seconds.

Perks

	Agitation	You get excited in anticipation of hooking your prey. While carrying a Survivor, your Movement speed is increased by 6/12/18 % and your Terror Radius is increased by 12 metres. "At some point, the excitement of hooking one of us becomes more important than the desire to kill us."
	Beast of Prey	Your lust for a kill is so intense that your connection with The Entity is momentarily lost, making you totally unpredictable. Upon gaining Bloodlust Tier I, you are granted the Undetectable Status Effect for as long as Bloodlust is active Beast of Prey grants 30/40/50 % bonus Bloodpoints for actions in the Hunter Category. The bonus Bloodpoints are only awarded during the Trial. "Where did she go?"
	Coulrophobia	Your presence alone instils great fear. The Healing speed of Survivors within your Terror Radius is reduced by 30/40/50 %.
	Dark Devotion	The display of your Powers creates a whirlwind of panic that spreads throughout the land. You become obsessed with one Survivor. Hitting the Obsession with a Basic Attack causes them to emit a Terror Radius of 32 metres for the next 20/25/30 seconds. You are granted the Undetectable Status Effect. The Obsession hears their own Terror Radius. You can only be obsessed with one Survivor at a time. "And terror shall take hold of a defiant non-believer, who shall falsely announce my arrival." (The Tablet of Adiris, 48.9)
	Distressing	Your horrifying emanation strikes at a supernaturally long distance. Your Terror Radius is increased by 22/24/26 %. Distressing grants 100 % bonus Bloodpoints for actions in the Deviousness Category. The bonus Bloodpoints are only awarded during the Trial. "Bask in their fear."
	Diversion	Activate-able Perk. Standing within the Killer's Terror Radius while not in a Chase for 40/35/30 seconds activates Diversion. Once Diversion is activated, press the Active Ability button while crouched and motionless to throw a pebble, creating a distraction for the Killer at a distance of 20 meters. The distraction consists of the following: Loud Noise notification Scratch Marks Diversion's timer resets once the ability has been activated. "There's what is easy and then there's what is right. If you confuse the two, there's no telling what you become." — Adam Francis
	Furtive Chase	You become obsessed with one Survivor. You lurk in the shadows, eliminating your victims one by one. Each time you hook your Obsession , you gain 1 Token, up to a maximum of 2/3/4 Tokens: While in a Chase, your Terror Radius is reduced by 4 metres per accumulated Token. When a Survivor rescues the Obsession from the Hook, that Survivor will become the new Obsession. All accumulated Tokens are lost when Obsession is sacrificed or killed. You can only be obsessed with one Survivor at a time. "You have no idea what I have planned for you. It'll be in the news for weeks. I'll make sure of that." — The Ghost Face
	Infectious Fright	The cries of the unfaithful make your heart leap. Whenever a Survivor is put into the Dying State by any means, all other Survivors within your Terror Radius will scream and reveal their current location to you for 4/5/6 seconds. "Horror overcomes the heart of infidels who cry at the feet of the fallen." (Hymn of Praise, 11.4)
	Insidious	Unlocks your stealth ability. After standing still for 4/3/2 seconds, you are granted the Undetectable Status Effect until you act or move again.
	Monitor & Abuse	Meticulous in your approach, terrifying in your application. Your base Terror Radius is increased by 8 metres. Whenever you are outside of a Chase, your Terror Radius is reduced by 16 metres while your Field of View is increased by 3/5/10 °. Field of View gains do not stack. "It's time for your treatment!." — Herman Carter, The Doctor
	Overwhelming Presence	Your presence alone instils great fear. Survivors within your Terror Radius suffer from inefficiency: When using an Item , its Depletion rate is increased by 80/90/100 %. "Shit!! I dropped the gauze!"
	Stake Out	Getting close to the Killer fills you with determination. Every 15 seconds you are standing within the Killer's Terror Radius without being chased, Stake Out gains 1 Token, up to a maximum of 2/3/4 Tokens. When Stake Out has at least 1 Token, Good Skill Checks consume 1 Token and are considered Great Skill Checks, granting an additional Progression bonus of 1 %. Great Skill Checks do not consume any Tokens. "I had you, I had you on your knees. You're runnin' scared because we had you. We're gonna close this case!" — Detective David Tapp
	Starstruck	Your unmatched showmanship dazzles all. When carrying a Survivor, Starstruck activates: Survivors suffer from the Exposed Status Effect while in your Terror Radius . The Status Effect lingers for 26/28/30 seconds after leaving your Terror Radius. After hooking or dropping the carried Survivor, Starstruck deactivates: The Status Effect persists for 26/28/30 seconds for any Survivor inside your Terror Radius at that moment. Starstruck has a cool-down of 60 seconds once the Survivor is no longer being carried. "Enjoy this moment, few get so close." — Ji-Woon Hak
	Tinkerer	Whenever a Generator is repaired to 70 %, it triggers a Loud Noise notification and you are granted the Undetectable Status Effect for the next 12/14/16 seconds.
	Trail of Torment	You guide your victims along a path of pain and punishment. After kicking a Generator , you are granted the Undetectable Status Effect until that Generator stops regressing or you damage a Survivor by any means. The Aura of that Generator is revealed to all Survivors in yellow. Trail of Torment has a cool-down of 80/70/60 seconds.
	Unnerving Presence	Your presence alone instils great fear. For all Survivors repairing or healing within your Terror Radius : Skill Check Trigger odds are increased by 10 %. Skill Check Success zones are reduced by 40/50/60 %. "Its presence befalls us."

Change Log

Patch 1.8.1

• Increased The Nightmare's Terror Radius to 24 metres from formerly 16 metres.

Patch 1.9.3

• Decreased The Hag's Terror Radius to 24 metres from formerly 28 metres.

Patch 2.5.0

• Increased The Pig's Terror Radius to 32 metres from formerly 28 metres.

Patch 2.6.0

• The intensity of the Terror Radius is now also scaled based on the vertical distance, in addition to the horizontal distance.

Patch 2.7.0

• Increased The Legion's Terror Radius to 32 metres from formerly 24 metres.

Terror Radius Examples

The following table lists several examples of resulting Terror Radii when using Unlockables that affect it in some way:

Unlockable	Modifier	4.6 m/s Killer	4.4 m/s Killer
no Unlockables	-	32 metres	24 metres
Agitation	+12 m (Carrying)	44 metres	36 metres
Distressing	+22 %	39.04 metres	29.28 metres
	+24 %	39.68 metres	29.76 metres
	+26 %	40.32 metres	30.24 metres
Furtive Chase	-4 m (1 Token)	28 metres	20 metres
	-8 m (2 Tokens)	24 metres	16 metres
	-12 m (3 Tokens)	20 metres	12 metres
	-16 m (4 Tokens)	16 metres	8 metres
Monitor & Abuse *	-16 m (no Chase)	24 metres	16 metres
	default (in Chase)	40 metres	32 metres

Trivia

• Unlockables that affect a Terror Radius via a percentage tend to apply that on top of the base Terror Radius, ignoring other Unlockables that affect it by a concrete numerical value.