From SCP: Secret Laboratory Public Beta Official Wiki
| SCP-173 | ||||
|---|---|---|---|---|
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| Abilities | ||||
Heavy Armor level bullet resistance. Higher penetration weapons are more effective. A pool of filth on the ground that slows targets. Regain a small amount of HS when stained targets are killed. Teleport to a marker on the ground, forcing everyone to blink. Will kill the nearest human if they are in range. SCP-173 moves a lot faster and can blink further, but is unable to kill. | ||||
| Stats | ||||
| Health: 4000 | Walk: 7.3 m/s | |||
| Hume Shield (Initial): 750 | Break Neck: 12.4 m/s | |||
| Hume Shield (20% HP): 1500 | Jump Power: 5 | |||
| Hume Shield Regen: 20 HS/s | ||||
| Hume Shield Regen Delay: 10s | ||||
| Other Information | ||||
| Spawn Location: Light Containment Zone Nickname: Matthew Class ID: 0 Class Color: #EC2222 | ||||
| Article Link: Page | ||||
SCP-173 is one of the seven playable SCP classes in SCP: Secret Laboratory.
SCP-173 acts as an assassin class SCP, meant to quickly hunt down and eliminate a single target or small groups of players.
Operational Guides
Class Operational Guide
A mere concrete sculpture upon first glance; an art piece to be seen and admired. On second glance, you’ll notice it’s somehow closer, as if yearning for attention. There is no third glance. You’re dead by then.
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“SCP-173 wasn’t the most peculiar anomaly in our containment. A sculpture capable of moving at high speeds when unseen. It attacks by breaking its victim’s neck. After its ‘mutation’, for lack of a better term, research and testing have resumed. Did the mutation make it our most peculiar anomaly? No, I doubt it did.”
-Dr. Simon Wolffe, SCP-173 Research Supervisor, Site-02
Abilities Operational Guides
- [M1] — Snap
While unobserved, press the Attack button to perform Snap on a human, killing them immediately.
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SCP-173 has been seen attacking subjects from behind. It attacks by snapping the neck at the base of the skull. The attack is carried out at a high speed, resulting in a severe and unnatural rotation of the spine; this is a minimum of 180 degrees.
- [M2] — Blink
Trigger Blink to catch your observers by surprise and rapidly attack the closest player. Press and hold Blink to have a marker of SCP-173 appear where you are facing. After releasing Blink, SCP-173 will rapidly move towards the marker’s last location, killing the nearest human in range.
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SCP-173 has been observed to attack subjects as far as 15 meters away in the span of a second.
- [Shift] — Breakneck Speeds
Activate Breakneck Speeds to greatly increase your movement speed; however, for as long as it is active, you will not be able to attack (though Tantrum may still be used). If a human observes you while Breakneck Speeds is active, you will lose your speed bonus rapidly. Alternatively, you can cancel Breakneck Speeds at any time by pressing the shift key.
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After being transferred to Site-02, SCP-173 seems to have gained a new behavior. When unobserved, SCP-173 has been heard scraping and moving much faster than usual… …Interestingly, this has shown to negate its lethality.
- [F] — Tantrum
Activate Tantrum and cause SCP-173 to excrete a pool of filth on the ground. Humans caught in the pool will be unable to sprint, and gain the Stained status effect, which lasts for a short duration after the player leaves the pool. If SCP-173 kills someone while the player is under the effect, SCP-173 will instantly gain back a portion of its Hume Shield. SCP-173 can only create a limited number of pools at a time. Creating more will result in the oldest dissipating.
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SCP-173 has been known to cover its containment chamber in a caustic, sticky substance made of several distinct bodily fluids and [REDACTED]. The material has an orange, reddish colouration. Bubbles can be seen on the surface due to the presence of bodily fluids.
In Game
At the start of a round, SCP-173 will spawn in its Containment Cell in Light Containment Zone.
Upon spawning, SCP-173 won't be able to exit the cell right away, as the only exit (a gate) is locked shut, which gives the Class-Ds and Scientists some time to explore. After a short amount of time, the gate will automatically open, and SCP-173 can leave its cell, free to roam around the map. If SCP-173 takes no damage for 10 seconds, its Hume Shield will slowly regenerate by 20 HS/s. SCP-173 can talk to the other SCPs by holding down the Q key. This voice chat can be heard by all SCPs no matter the distance.
Hume Shield
- SCP-173 has base Hume Shield value of 750.
- If SCP-173 takes no damage for 10 seconds, its Hume Shield will slowly regenerate by 30 HS/s.
- SCP-173 restores 400 Hume Shield if they kill a player under the Tantrum Effect.
- Hume Shield does not factor in SCP-173's damage resistance.
Abilities
Neck Snap
When SCP-173 isn't being observed, they can press 
Left Click to snap a player's neck, instantly killing them. This attack will play a fairly audible sound effect, that can alert other players.
Reinforced Concrete
SCP-173 takes reduced damage from all firearms besides the Micro H.I.D. and the 3-X Particle Disruptor. This only applies to SCP-173's base HP and not their Hume Shield. This passive armor has a value of 80%, and will factor in a weapons penetration. Meaning it works the same as the Armor item. x = a(100% − p), where a is the armor protection level, p is the penetration amount of a weapon, with x being the actual damage reduced. So a weapon with 50% penetration shooting a player in the body would only reduce the damage by 40% instead of 80%.
Tantrum
SCP-173 can leave a pool of filth on the ground by pressing the F key. While multiple pools can be placed at once, the ability has a 30 second cooldown. A pool of filth will last only 180 seconds on the ground, though Tesla Gates will instantly destroy them, preventing SCP-173 from placing them near the Tesla Gate.
Players entering the pool gain the Stained Reduces player speed by 20%
Players cannot sprint Status Effect, which lasts until the player leaves the pool plus three seconds afterwards. If SCP-173 kills a player while they are under the Stained Effect, they will instantly gain back 400 Hume Shield.
Blink
When SCP-173 is being looked at by a Human, SCP-173 will stop moving and be locked in place. A small HUD element will appear on SCP-173's screen displaying a 3.0 second countdown for their Blink ability. When the cooldown ends, the player can hold 
Right Click make a marker appear on the ground. The marker can be moved by using the mouse and can travel up to a max distance of 8 meters. When the player releases Right Click, SCP-173 will teleport to their mark, which will force humans to blink. If any humans are in range, SCP-173 will automatically kill the closest one. The marker will change colors to display if SCP-173 is within killing range of a human or if Breakneck Speeds is activated.
The Blink ability will shatter nearby windows when used.
Breakneck Speeds
Breakneck Speeds can be turned on by pressing ⇧ Shift, and can be used whether or not SCP-173 is seen.
In this state, SCP-173 moves 1.7x faster, blinks 1.8x further, charges blinks twice as quickly, but is unable to kill players. The ability can be used by SCP-173 to quickly escape a dangerous situation as it allows them to move much more quickly at the cost of being unable to kill.
This mode ends when the player presses ⇧ Shift again. There is a small grace peroid of 1.5 seconds after the ability is activated where pressing the ⇧ Shift key will not cancel the ability. It will also ends automatically 10 seconds after SCP-173 is spotted.
The ability has a 40 second cooldown, the cooldown only starts after the ability ends.
Related Achievements
Click to view 1 achievement(s) related to SCP-173:
| Don't Blink | |
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Survive an encounter with SCP-173. |
Sounds
| Sight Stingers | |
|---|---|
| Chase Ambient | |
| Attack Sounds | |
| Ability SFX | |
| Movement | |
| Misc | |
Gallery
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SCP-173's model prior to the 11.0.0 update
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For April Fools 2018 Event , SCP-173 was turned into a Peanut.
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For April Fools 2019 Event and Halloween 2020 Event, SCP-173 was replaced with the glorious
Mr. Nutty. -
For Halloween 2018, SCP-173 became a pumpkin.
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For the X-Mas 2018 & 2019 Events, SCP-173 was replaced with a snowman. Automatically spawns in the Class-D Cells and 173's chambers during December.
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For X-Mas 2020, SCP-173 was covered in snow.
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For X-Mas 2021, SCP-173 became a snowman.
Trivia
- SCP-173 doesn't have a ragdoll upon death, and instead falls apart into pieces when killed.
- The Xmas 2021/2022 models would explode into a snowy mist and leave behind a black scarf and tophat.
- Dying to SCP-173 will cause the player's head to be twisted 180 degrees around the base of the neck
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