SCP Monsters or Trevor Creatures

SCP Monsters or Trevor Creatures is a horror survival game on Roblox by solo developer lolbuih where players attempt to survive inside a monster-filled building populated by entities from two horror universes - the SCP Foundation and the Trevor Creatures of internet horror artist Trevor Henderson. Created in February 2022, it has reached 406.4 million visits, making it a major Roblox title by any measure.

Players navigate a building containing a mix of horror entities. SCP monsters follow their canonical Foundation behaviors, while Trevor Creatures - Sirenhead, Long Horse, Cartoon Cat, and others - stalk the same space. The format is simple: can you survive what's inside, or at least have fun trying:

• ⚔️ SCP monsters - Entities from the SCP Foundation universe, each with distinct threat behaviors
• 🎭 Trevor Creatures - Horror figures from Trevor Henderson's internet art active in the same building
• 🗺️ Building survival - Navigate corridors and rooms while managing threats from both creature types
• 🏆 15-player servers - Group survival with enough players for emergent chaos and coordination

Notable entities include Sirenhead (the signature Trevor Henderson creature with telephone sirens for a head), Long Horse, and Cartoon Cat, alongside Foundation entities from SCP lore. The 15-player server supports group dynamics where different players may encounter different monsters simultaneously.

SCP Monsters or Trevor Creatures pioneered the dual-universe horror format that lolbuih later expanded in SCP Games and SCP Monsters (792.4 million visits). A newer companion game, SCP Foundation or Trevor Creatures by Fatal Experiences, adds identification gameplay to the same premise. Last updated October 2024, this original version may be in maintenance mode.