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ECS

Entity Component System implementations

Crates

  • apecs

    ECS

    An asyncronous and parallel entity-component system

    • Latest version:
      0.8.4
    • Downloads:
      35,725
    • Recent downloads:
      5,595
    • License:
      MIT OR Apache-2.0
    • Stars:
      70
    • Last activity:
      2024-09-20

  • bevy_ecs

    ECS

    Bevy Engine's entity component system

    • Latest version:
      0.16.1
    • Downloads:
      2,696,649
    • Recent downloads:
      369,715
    • License:
      MIT OR Apache-2.0
    • Stars:
      39,981
    • Last activity:
      2025-06-08

  • brood

    ECS

    A fast and flexible entity component system library.

    • Latest version:
      0.9.1
    • Downloads:
      13,633
    • Recent downloads:
      2,120
    • License:
      MIT OR Apache-2.0
    • Stars:
      42
    • Last activity:
      2023-11-20

  • calx-ecs

    ECS

    Serializable entity component system for games

    • Latest version:
      0.6.1
    • Downloads:
      9,840
    • Recent downloads:
      949
    • License:
      MIT OR Apache-2.0
    • Stars:
      19
    • Last activity:
      2018-07-30

  • dces

    ECS

    DCES entity component system

    • Latest version:
      0.3.1
    • Downloads:
      33,859
    • Recent downloads:
      2,213
    • License:
      MIT

  • dotrix

    3D Rendering · Game Engines · ECS

    3D Game Engine

    • Latest version:
      0.5.2
    • Downloads:
      8,201
    • Recent downloads:
      1,332
    • License:
      MIT
    • Stars:
      307
    • Last activity:
      2025-05-20

  • edict

    ECS

    Powerful entity-component-system library

    • Latest version:
      0.6.1
    • Downloads:
      34,516
    • Recent downloads:
      5,979
    • License:
      MIT OR Apache-2.0
    • Stars:
      100
    • Last activity:
      2025-05-27

  • evenio

    ECS

    An event-driven entity component system

    • Latest version:
      0.6.0
    • Downloads:
      12,879
    • Recent downloads:
      2,336
    • License:
      MIT
    • Stars:
      146
    • Last activity:
      2024-09-09

  • flax

    ECS

    An ergonomic archetypical ECS

    • Latest version:
      0.7.1
    • Downloads:
      14,235
    • Recent downloads:
      2,196
    • License:
      MIT
    • Stars:
      86
    • Last activity:
      2025-06-08

  • froggy

    ECS

    Froggy is a prototype for the Component Graph System programming model. It aims to combine the convenience of composition-style Object-Oriented Programming with the performance close to Entity-Component Systems.

    • Latest version:
      0.4.4
    • Downloads:
      31,588
    • Recent downloads:
      2,477
    • License:
      MIT/Apache-2.0
    • Stars:
      316
    • Last activity:
      2020-09-28

  • hecs

    ECS

    A fast, minimal, and ergonomic entity-component-system library

    • Latest version:
      0.10.5
    • Downloads:
      205,541
    • Recent downloads:
      21,733
    • License:
      MIT OR Apache-2.0
    • Stars:
      1,100
    • Last activity:
      2025-05-19

  • legion

    ECS

    High performance entity component system (ECS) library

    • Latest version:
      0.4.0
    • Downloads:
      187,728
    • Recent downloads:
      12,606
    • License:
      MIT
    • Stars:
      1,673
    • Last activity:
      2021-12-30

  • shipyard

    ECS

    Entity Component System

    • Chat on Gitter
    • Latest version:
      0.8.0
    • Downloads:
      78,413
    • Recent downloads:
      10,509
    • License:
      MIT OR Apache-2.0
    • Stars:
      796
    • Last activity:
      2025-04-30

  • sparsey

    ECS

    Entity Component System based on sparse sets

    • Latest version:
      0.13.1
    • Downloads:
      17,308
    • Recent downloads:
      2,603
    • License:
      MIT OR Apache-2.0
    • Stars:
      185
    • Last activity:
      2024-10-05

  • specs

    ECS

    Specs is an Entity-Component-System library written in Rust.

    • Chat on Gitter
    • Latest version:
      0.20.0
    • Downloads:
      753,599
    • Recent downloads:
      43,510
    • License:
      MIT OR Apache-2.0
    • Stars:
      2,563
    • Last activity:
      2024-06-07

Archived

These crates are no longer maintained, but may still be of interest.

  • pyro

    ECS

    Entity component system

    • Latest version:
      0.2.5
    • Downloads:
      10,000
    • Recent downloads:
      1,237
    • License:
      MIT
    • Stars:
      137
    • Last activity:
      2020-01-05

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