# Megafunk/MassSample

My understanding of Unreal Engine 5's experimental ECS plugin with a small sample project.

Repository: https://github.com/Megafunk/MassSample
Canonical: https://ross.abutalabs.com/products/masssample
Language: C++
License: MIT
License Family: permissive
Last push: 2026-06-27T11:40:09+00:00

## Health v2 (maintenance only)
Score: 63/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 89, release rhythm 8, longevity 100
- inputs: {"age_days": 1632, "days_push": 67, "days_rel": 451, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1118, forks 174 (observed 2026-08-28T04:03:39.145330+00:00)

## What it is
A community-maintained sample project and documentation explaining Unreal Engine 5's experimental Mass Entity Component System (ECS) plugin. It includes a small playable sample built with C++ plus an extensive readme covering entities, fragments, archetypes, processors, and queries.

## Use cases
- learn unreal engine 5 mass ecs framework
- see example code for mass entities and fragments
- understand how mass processors and queries work
- get a starter sample project for ue5 ecs
- reference for mass archetype model behavior
- learn how to structure data-oriented gameplay in unreal

## When to choose
- you are learning UE5's Mass framework and want annotated sample code
- you need a working reference project updated for recent UE5 versions
- you want community documentation on Mass concepts like fragments and processors

## When to avoid
- you need production-ready, officially supported ECS tooling
- you are not using Unreal Engine 5
- you need guaranteed API accuracy, since Mass is experimental and changes often

## Facets
- artifact type: learning-resource
- maturity: active
- function: game-engine, simulation, developer-tools
- domain: simulation, tutorials, programming-languages
- platform: windows, cpp
- tags: unreal-engine-5, ecs, mass-entity, sample-project, documentation, game-development, linux, macos

## Member repositories
- Megafunk/MassSample (main) score 63

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:39.145330+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 2026-08-30T06:41:27.341719+00:00, confidence not recorded.
  - readme: https://github.com/Megafunk/MassSample (fetched 2026-08-28T04:03:39.145330+00:00, sha 4cfea1da7e18)
- Data as of 2026-08-30T08:39:29.467469+00:00.