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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:
      38,053
    • Recent downloads:
      6,055
    • License:
      MIT OR Apache-2.0
    • Stars:
      72
    • Last activity:
      2024-09-20

  • bevy_ecs

    ECS

    Bevy Engine's entity component system

    • Latest version:
      0.16.1
    • Downloads:
      2,848,080
    • Recent downloads:
      392,263
    • License:
      MIT OR Apache-2.0
    • Stars:
      40,499
    • Last activity:
      2025-07-11

  • brood

    ECS

    A fast and flexible entity component system library.

    • Latest version:
      0.9.1
    • Downloads:
      14,349
    • Recent downloads:
      2,098
    • 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:
      10,150
    • Recent downloads:
      959
    • License:
      MIT OR Apache-2.0
    • Stars:
      18
    • Last activity:
      2018-07-30

  • dces

    ECS

    DCES entity component system

    • Latest version:
      0.3.1
    • Downloads:
      34,671
    • Recent downloads:
      2,276
    • License:
      MIT

  • dotrix

    3D Rendering · Game Engines · ECS

    3D Game Engine

    • Latest version:
      0.5.2
    • Downloads:
      8,690
    • Recent downloads:
      1,403
    • License:
      MIT
    • Stars:
      308
    • Last activity:
      2025-06-09

  • edict

    ECS

    Powerful entity-component-system library

    • Latest version:
      0.6.1
    • Downloads:
      36,793
    • Recent downloads:
      6,365
    • License:
      MIT OR Apache-2.0
    • Stars:
      99
    • Last activity:
      2025-06-26

  • evenio

    ECS

    An event-driven entity component system

    • Latest version:
      0.6.0
    • Downloads:
      13,666
    • Recent downloads:
      2,433
    • License:
      MIT
    • Stars:
      146
    • Last activity:
      2024-09-09

  • flax

    ECS

    An ergonomic archetypical ECS

    • Latest version:
      0.7.1
    • Downloads:
      15,037
    • Recent downloads:
      2,315
    • License:
      MIT
    • Stars:
      86
    • Last activity:
      2025-06-19

  • 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:
      32,475
    • Recent downloads:
      2,451
    • 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:
      219,749
    • Recent downloads:
      28,994
    • License:
      MIT OR Apache-2.0
    • Stars:
      1,119
    • Last activity:
      2025-07-10

  • legion

    ECS

    High performance entity component system (ECS) library

    • Latest version:
      0.4.0
    • Downloads:
      192,233
    • Recent downloads:
      12,152
    • License:
      MIT
    • Stars:
      1,679
    • Last activity:
      2021-12-30

  • shipyard

    ECS

    Entity Component System

    • Chat on Gitter
    • Latest version:
      0.8.1
    • Downloads:
      82,754
    • Recent downloads:
      11,151
    • License:
      MIT OR Apache-2.0
    • Stars:
      803
    • Last activity:
      2025-07-02

  • sparsey

    ECS

    Entity Component System based on sparse sets

    • Latest version:
      0.13.3
    • Downloads:
      18,569
    • Recent downloads:
      2,988
    • License:
      MIT OR Apache-2.0
    • Stars:
      186
    • Last activity:
      2025-06-19

  • specs

    ECS

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

    • Chat on Gitter
    • Latest version:
      0.20.0
    • Downloads:
      770,308
    • Recent downloads:
      43,293
    • License:
      MIT OR Apache-2.0
    • Stars:
      2,564
    • 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:
      10,455
    • Recent downloads:
      1,287
    • License:
      MIT
    • Stars:
      136
    • Last activity:
      2020-01-05

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