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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:
      37,454
    • Recent downloads:
      5,822
    • 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:
      2,822,678
    • Recent downloads:
      382,673
    • License:
      MIT OR Apache-2.0
    • Stars:
      40,438
    • Last activity:
      2025-07-07

  • brood

    ECS

    A fast and flexible entity component system library.

    • Latest version:
      0.9.1
    • Downloads:
      14,126
    • Recent downloads:
      2,013
    • 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:
      10,068
    • Recent downloads:
      915
    • 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:
      34,466
    • Recent downloads:
      2,178
    • License:
      MIT

  • dotrix

    3D Rendering · Game Engines · ECS

    3D Game Engine

    • Latest version:
      0.5.2
    • Downloads:
      8,563
    • Recent downloads:
      1,341
    • License:
      MIT
    • Stars:
      308
    • Last activity:
      2025-06-09

  • edict

    ECS

    Powerful entity-component-system library

    • Latest version:
      0.6.1
    • Downloads:
      36,158
    • Recent downloads:
      6,056
    • 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:
      13,450
    • Recent downloads:
      2,313
    • License:
      MIT
    • Stars:
      146
    • Last activity:
      2024-09-09

  • flax

    ECS

    An ergonomic archetypical ECS

    • Latest version:
      0.7.1
    • Downloads:
      14,805
    • Recent downloads:
      2,192
    • 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:
      32,267
    • Recent downloads:
      2,404
    • 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:
      217,605
    • Recent downloads:
      28,068
    • License:
      MIT OR Apache-2.0
    • Stars:
      1,118
    • Last activity:
      2025-07-03

  • legion

    ECS

    High performance entity component system (ECS) library

    • Latest version:
      0.4.0
    • Downloads:
      191,452
    • Recent downloads:
      11,962
    • License:
      MIT
    • Stars:
      1,679
    • Last activity:
      2021-12-30

  • shipyard

    ECS

    Entity Component System

    • Chat on Gitter
    • Latest version:
      0.8.1
    • Downloads:
      82,126
    • Recent downloads:
      11,088
    • 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:
      18,387
    • Recent downloads:
      3,008
    • License:
      MIT OR Apache-2.0
    • Stars:
      185
    • 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:
      767,690
    • Recent downloads:
      42,789
    • License:
      MIT OR Apache-2.0
    • Stars:
      2,566
    • 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:
      10,334
    • Recent downloads:
      1,249
    • License:
      MIT
    • Stars:
      136
    • Last activity:
      2020-01-05

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