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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:
      38,098
    • Recent downloads:
      5,956
    • 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:
      2,862,149
    • Recent downloads:
      393,559
    • License:
      MIT OR Apache-2.0
    • Stars:
      40,536
    • Last activity:
      2025-07-13

  • brood

    ECS

    A fast and flexible entity component system library.

    • Latest version:
      0.9.1
    • Downloads:
      14,375
    • Recent downloads:
      2,079
    • 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:
      10,167
    • Recent downloads:
      951
    • 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:
      34,713
    • Recent downloads:
      2,257
    • License:
      MIT

  • dotrix

    3D Rendering · Game Engines · ECS

    3D Game Engine

    • Latest version:
      0.5.2
    • Downloads:
      8,710
    • Recent downloads:
      1,389
    • License:
      MIT
    • Stars:
      307
    • Last activity:
      2025-06-09

  • edict

    ECS

    Powerful entity-component-system library

    • Latest version:
      0.6.1
    • Downloads:
      36,811
    • Recent downloads:
      6,242
    • 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:
      13,695
    • Recent downloads:
      2,404
    • License:
      MIT
    • Stars:
      145
    • Last activity:
      2024-09-09

  • flax

    ECS

    An ergonomic archetypical ECS

    • Latest version:
      0.7.1
    • Downloads:
      15,052
    • Recent downloads:
      2,277
    • 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:
      32,536
    • Recent downloads:
      2,439
    • 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:
      220,574
    • Recent downloads:
      29,072
    • License:
      MIT OR Apache-2.0
    • Stars:
      1,119
    • Last activity:
      2025-07-12

  • legion

    ECS

    High performance entity component system (ECS) library

    • Latest version:
      0.4.0
    • Downloads:
      192,766
    • Recent downloads:
      12,205
    • License:
      MIT
    • Stars:
      1,679
    • Last activity:
      2021-12-30

  • shipyard

    ECS

    Entity Component System

    • Chat on Gitter
    • Latest version:
      0.8.1
    • Downloads:
      83,035
    • Recent downloads:
      11,114
    • License:
      MIT OR Apache-2.0
    • Stars:
      804
    • Last activity:
      2025-07-02

  • sparsey

    ECS

    Entity Component System based on sparse sets

    • Latest version:
      0.13.3
    • Downloads:
      18,595
    • Recent downloads:
      2,947
    • 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:
      772,211
    • Recent downloads:
      43,663
    • License:
      MIT OR Apache-2.0
    • Stars:
      2,565
    • 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:
      10,468
    • Recent downloads:
      1,269
    • License:
      MIT
    • Stars:
      136
    • Last activity:
      2020-01-05

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