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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:
      41,896
    • Recent downloads:
      4,175
    • License:
      MIT OR Apache-2.0
    • Stars:
      75
    • Last activity:
      2024-09-20

  • bevy_ecs

    ECS

    Bevy Engine's entity component system

    • Latest version:
      0.17.2
    • Downloads:
      3,510,402
    • Recent downloads:
      678,000
    • License:
      MIT OR Apache-2.0
    • Stars:
      42,530
    • Last activity:
      2025-10-05

  • brood

    ECS

    A fast and flexible entity component system library.

    • Latest version:
      0.9.1
    • Downloads:
      16,002
    • Recent downloads:
      1,762
    • 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:
      10,972
    • Recent downloads:
      867
    • 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:
      36,874
    • Recent downloads:
      2,365
    • License:
      MIT

  • dotrix

    3D Rendering · Game Engines · ECS

    3D Game Engine

    • Latest version:
      0.5.2
    • Downloads:
      9,610
    • Recent downloads:
      1,017
    • License:
      MIT
    • Stars:
      308
    • Last activity:
      2025-06-09

  • edict

    ECS

    Powerful entity-component-system library

    • Latest version:
      0.6.1
    • Downloads:
      40,845
    • Recent downloads:
      4,565
    • License:
      MIT OR Apache-2.0
    • Stars:
      104
    • Last activity:
      2025-06-26

  • evenio

    ECS

    An event-driven entity component system

    • Latest version:
      0.6.0
    • Downloads:
      15,592
    • Recent downloads:
      2,101
    • License:
      MIT
    • Stars:
      145
    • Last activity:
      2024-09-09

  • flax

    ECS

    An ergonomic archetypical ECS

    • Latest version:
      0.7.1
    • Downloads:
      16,680
    • Recent downloads:
      1,830
    • License:
      MIT
    • Stars:
      93
    • Last activity:
      2025-07-26

  • 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:
      34,897
    • Recent downloads:
      2,585
    • License:
      MIT/Apache-2.0
    • Stars:
      318
    • Last activity:
      2020-09-28

  • hecs

    ECS

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

    • Latest version:
      0.10.5
    • Downloads:
      256,093
    • Recent downloads:
      38,036
    • License:
      MIT OR Apache-2.0
    • Stars:
      1,160
    • Last activity:
      2025-08-29

  • legion

    ECS

    High performance entity component system (ECS) library

    • Latest version:
      0.4.0
    • Downloads:
      212,062
    • Recent downloads:
      20,378
    • License:
      MIT
    • Stars:
      1,688
    • Last activity:
      2021-12-30

  • shipyard

    ECS

    Entity Component System

    • Chat on Gitter
    • Latest version:
      0.9.3
    • Downloads:
      96,520
    • Recent downloads:
      14,191
    • License:
      MIT OR Apache-2.0
    • Stars:
      823
    • Last activity:
      2025-09-27

  • sparsey

    ECS

    Entity Component System based on sparse sets

    • Latest version:
      0.13.3
    • Downloads:
      20,910
    • Recent downloads:
      2,470
    • License:
      MIT OR Apache-2.0
    • Stars:
      189
    • 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:
      850,262
    • Recent downloads:
      81,690
    • License:
      MIT OR Apache-2.0
    • Stars:
      2,573
    • 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:
      11,407
    • Recent downloads:
      1,006
    • License:
      MIT
    • Stars:
      136
    • Last activity:
      2020-01-05

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