impostor player
by AppleMax0
With impostor player installed, a real online player can be secretly taken over and turned into a puppet that others mistake for a normal participant.
What it does
The impostor mod adds a psychological horror threat for multiplayer servers. Rather than adding new monsters, it possesses a real player, whose character is then controlled by a hidden AI. The AI moves, looks around and acts like an ordinary human, so other players cannot tell with certainty whether the person next to them is genuine.
While possessed, the player eats, follows others, fights mobs, chats and even crouches, and the real owner loses direct control of the character. The design keeps the threat inside normal player behavior rather than adding obvious mobs. Players are left to decide who to trust and what they are actually seeing.
Impostor is published for Fabric 1.20.1 only and runs on client and server, so the server and every player need it. The code is not open source and is released under All rights reserved.
Key features
Possession of real players
A hidden AI takes over a real online player, who can no longer direct the character's movement or view.
Phased predatory behavior
The entity moves through phases: mimicking a target, judging it at a safe distance, closing in under a disguise, then attacking.
Chain possession
When the entity kills its target, the victim is revived at the same spot with full health and immediately possessed again.
Configurable timing and damage
The judging duration and the damage dealt by attacks can be adjusted in the mod's settings.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Questions
Does Impostor need another mod to work?
Does the server need Impostor installed?
Can the timing of the possession phases be changed?
In the catalog
impostor player is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 34,764 mods support Minecraft 1.20.1.
Similar mods
What the author says
Impostor is a horror-survival mod for Minecraft Fabric 1.20.1 that brings a new kind of psychological threat to multiplayer servers. Instead of spawning new monsters, it secretly possesses real online players, turning them into puppet-like entities controlled by a hidden AI — all while they look and move exactly like…
Official listing
- Modrinth page
- modrinth.com/mod/impostor_player
- Owner
- AppleMax0
- Published
- 2026-04-24
- Updated on Modrinth
- 2026-05-04
- Facts verified
- 2026-10-15