# Impostor/Impostor

Impostor - An open source reimplementation of the Among Us Server

Repository: https://github.com/Impostor/Impostor
Canonical: https://ross.abutalabs.com/products/impostor
Language: C#
License: GPL-3.0
License Family: copyleft
Topics: among-us, private-server
Last push: 2026-08-26T18:56:06+00:00

## Health v2 (maintenance only)
Score: 87/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 63, longevity 100
- inputs: {"age_days": 2173, "days_push": 7, "days_rel": 90, "gap_med": 123, "n_releases_24m": 6}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2362, forks 355 (observed 2026-08-28T04:06:40.940045+00:00)

## What it is
Impostor is an open-source reimplementation of the Among Us game server, written in C#. It fully replaces the official server, supports plugins, and includes server-sided anticheat.

## Use cases
- host my own Among Us private server
- play Among Us without the official servers
- run a self-hosted Among Us server for friends
- extend Among Us server behavior with plugins
- add anticheat to an Among Us server
- replace the official Among Us server entirely

## When to choose
- you want a full self-hosted replacement for the official Among Us server
- you need plugin support or server-sided anticheat
- you want to control your own game server for a community

## When to avoid
- you need a server for a different game
- you want a turnkey hosted service with no setup
- you require support for Among Us versions not yet supported by Impostor

## Facets
- artifact type: service
- maturity: active
- function: networking, plugin-system, security
- domain: gaming-tools, self-hosted, networking
- platform: cross-platform, self-hosted, dotnet
- tags: among-us, private-server, game-server, csharp, anticheat, docker

## Member repositories
- Impostor/Impostor (main) score 87

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:40.940045+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:36:02.860139+00:00, confidence not recorded.
  - readme: https://github.com/Impostor/Impostor (fetched 2026-08-28T04:06:40.940045+00:00, sha 560104cfdd29)
- Data as of 2026-08-30T08:39:29.467469+00:00.