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SCP-5167, When the Imposter is sus

by Zcoper

SCP-5167, When the Imposter is sus adds an anomalous imposter, a single hostile creature that poses as a harmless red crewmate from the game Among Us.

ForgeClient and serverAll rights reserved1.19.2 – 1.20.1

What it does

In the SCP universe the creature is known as the Imposter that is sus, and it appears innocent: a small, docile red crewmate called Phthonus. It wanders the overworld peacefully and only changes its behavior when provoked. Approaching it for too long causes nausea and slowness, which hurts the player and reveals its true identity, after which it shows its teeth, speeds up and attacks with a long spiked tongue or knife. Its attacks inflict Bleeding, and on death it leaves a red corpse.

The mod adds one new entity, and only one instance of SCP-5167 exists in a world at a time. It can turn up in the open world as an ordinary hostile monster would. The mod is built with MCreator and includes a config file, and it requires Geckolib to run. Files are published for Forge, for 1.20.1 with the latest build 1.0.0 released on 2026-06-10.

Key features

  1. Disguised spawn

    The creature spawns as a small docile crewmate that looks like the red character in Among Us.

  2. Provoked transformation

    Staying within six blocks too long triggers nausea and slowness, and the creature then drops its disguise and turns hostile.

  3. Chasing behavior

    A hostile SCP-5167 moves faster and deals high damage with its long spiked tongue, breaking glass, doors, trapdoors, leaves and fence gates along the way.

  4. Bleeding and corpse

    Its attacks inflict Bleeding, and on death it leaves a red corpse that marks the gruesome aftermath.

Compatibility

Latest build for each game version and loader.

1.20.11.0.0
1.19.41.0.0
1.19.21.0.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

GeckolibA 3D animation library for entities, blocks, items, armor, and more!
Required

Questions

Does SCP-5167, When the Imposter is sus need Geckolib?

Yes. Geckolib is a required dependency and must be installed alongside the mod on Forge.

Does the server need the mod?

Yes. Servers that run it need every player to install it too.

Which Minecraft versions are supported?

Files exist for 1.19.2, 1.19.4 and 1.20.1, and the mod is recommended on the newest version, 1.20.1.

In the catalog

SCP-5167, When the Imposter is sus is one of 11,058 Mobs mods on ModsFinder, and one of 6,527 Mobs mods for Forge. 34,764 mods support Minecraft 1.20.1.

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What the author says

When the Imposter is sus adds a new entity. Its history comes from the SCP universe, where it is referred to as SCP-5167, also known as When the Imposter is sus. SCP-5167 appears as an innocent red crewmate called Phthonus from the game "Among us". SCP-5167 wanders around peacefully, but its behavior changes…
Zcoper, on the Modrinth page

Official listing

Owner
Zcoper
Published
2026-06-10
Updated on Modrinth
2026-06-10
Facts verified
2026-10-15

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