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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:
      42,751
    • Recent downloads:
      3,527
    • 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:
      3,785,162
    • Recent downloads:
      793,811
    • License:
      MIT OR Apache-2.0
    • Stars:
      42,919
    • Last activity:
      2025-11-02

  • brood

    ECS

    A fast and flexible entity component system library.

    • Latest version:
      0.9.1
    • Downloads:
      16,362
    • Recent downloads:
      1,521
    • 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:
      11,172
    • Recent downloads:
      772
    • 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:
      37,449
    • Recent downloads:
      2,188
    • License:
      MIT

  • dotrix

    3D Rendering · Game Engines · ECS

    3D Game Engine

    • Latest version:
      0.5.2
    • Downloads:
      9,788
    • Recent downloads:
      794
    • License:
      MIT
    • Stars:
      309
    • Last activity:
      2025-06-09

  • edict

    ECS

    Powerful entity-component-system library

    • Latest version:
      0.6.1
    • Downloads:
      41,886
    • Recent downloads:
      4,075
    • License:
      MIT OR Apache-2.0
    • Stars:
      104
    • Last activity:
      2025-06-26

  • entity-trait-system

    ECS

    An alternative to ECS

    • Latest version:
      1.1.6
    • Downloads:
      320
    • Recent downloads:
      320
    • License:
      MIT
    • Stars:
      7
    • Last activity:
      2025-11-02

  • evenio

    ECS

    An event-driven entity component system

    • Latest version:
      0.6.0
    • Downloads:
      16,168
    • Recent downloads:
      2,027
    • License:
      MIT
    • Stars:
      145
    • Last activity:
      2024-09-09

  • flax

    ECS

    An ergonomic archetypical ECS

    • Latest version:
      0.7.1
    • Downloads:
      17,083
    • Recent downloads:
      1,669
    • License:
      MIT
    • Stars:
      94
    • 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:
      35,556
    • Recent downloads:
      2,422
    • 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:
      272,078
    • Recent downloads:
      43,752
    • License:
      MIT OR Apache-2.0
    • Stars:
      1,173
    • Last activity:
      2025-08-29

  • legion

    ECS

    High performance entity component system (ECS) library

    • Latest version:
      0.4.0
    • Downloads:
      218,382
    • Recent downloads:
      20,743
    • License:
      MIT
    • Stars:
      1,693
    • Last activity:
      2021-12-30

  • shipyard

    ECS

    Entity Component System

    • Chat on Gitter
    • Latest version:
      0.9.3
    • Downloads:
      100,517
    • Recent downloads:
      14,413
    • License:
      MIT OR Apache-2.0
    • Stars:
      825
    • Last activity:
      2025-09-27

  • sparsey

    ECS

    Entity Component System based on sparse sets

    • Latest version:
      0.13.3
    • Downloads:
      21,448
    • Recent downloads:
      2,222
    • 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:
      872,076
    • Recent downloads:
      83,798
    • License:
      MIT OR Apache-2.0
    • Stars:
      2,577
    • 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:
      11,625
    • Recent downloads:
      895
    • License:
      MIT
    • Stars:
      136
    • Last activity:
      2020-01-05

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