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Game guide

SCP Or Trevor Guide: Two areas, two sets of threats

SCP Or Trevor
pro scp gamers, Playing 0, Rating 70.3%
Creator pro scp gamers
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Rating 70.3%
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About

Overview

SCP or Trevor is a horror survival game where you explore a facility and a forest filled with monsters from the SCP Foundation and Trevor's creatures. Up to 20 players can join a single room.

What is on this page

Contents

Player notes and tips

Found a useful trick? Share it with everyone! Notes with screenshots are welcome!

01

Two areas, two sets of threats

Table
In short Knowing which monster lives where is the most important thing before you move.

The game splits its danger across two locations. The facility holds SCP Foundation monsters alongside Cartoon Cat, so you can face more than one threat at the same time there. The forest is Siren Head's territory.

Facilitymultiple monsters at once, including SCP-096 and Cartoon Cat
ForestSiren Head, found in the forest
SCP-999friendly creature, not a threat to you
??? Bosslocation unknown; you have to find him yourself
Ask on the board
02

What each creature does

Tips
In short Treat every creature differently based on how dangerous it is.

Four of the six creatures you can encounter behave in distinct ways.

Tips worth knowing
  • SCP-096 is extremely dangerous and very strong.
  • Cartoon Cat has unusual features and can be found inside the facility.
  • Siren Head is a big scary creature with sirens for a head found in the forest.
  • SCP-999 is safe and very friendly, so spotting it is not an emergency.
  • The ??? Boss is unknown and lost media

    find it and see what it does.

03

Finding the ??? Boss

Warn
In short The ??? Boss is a mystery by design, so hunt carefully and expect the unexpected.

The ??? Boss is described as unknown and lost media. Its location is not given to you — finding it is part of the challenge.

Worth watching out for
Its behaviour is unknown.
Earning the badge requires you to find it yourself.

Glossary

Glossary
SCP Foundation
The in-game organisation that contains and manages dangerous or unusual creatures, including SCP-096 and SCP-999.
Trevor
The creator of Siren Head and Cartoon Cat within the game's world.
SCP-096
A very dangerous and powerful creature held by the SCP Foundation.
SCP-999
A safe, friendly creature held by the SCP Foundation.
Siren Head
A large creature with sirens for a head that can be found in the forest.
??? Boss
An unknown creature described as lost media whose location and behaviour you have to discover yourself.

Common questions

FAQ

Will SCP-999 attack me?

No. SCP-999 is described as safe and very friendly.

How do I find the ??? Boss?

There is no marked location — finding it is the challenge.

How do free levels work?

Come back the next day after playing and the game gives you free levels.

Updated Nov 4, 2026
Game updates can change what is on this page. If you spot something, get in touch and let us know.
SCP Or Trevor pro scp gamers, Playing 0, Rating 70.3%
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