Free ECSY Alternatives

    ECSY is described as 'Highly experimental JavaScript-based Entity Component System framework from Mozilla'. There are four alternatives to ECSY for various platforms. The most liked alternative is Entitas, which is both free and Open Source. Other great apps like ECSY are EnTT (Free), Flecs (Free, Open Source) and EntityX (Free, Open Source).

    The list of alternatives was last updated Feb 26, 2020

    • Entitas is a super fast Entity Component System Framework (ECS) specifically made for C# and Unity. Internal caching and blazing fast component access makes it second to none.
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      • Free • Open Source
      • Self-Hosted
    • Header-only C++ game development library with innovative ECS (Entity-Component-System).
      • Free
      • Self-Hosted


    • Flecs is a Fast and Lightweight ECS (Entity Component System). Flecs packs as much punch as possible into a small library with a tiny C99 API and zero dependencies.
      • Free • Open Source
      • Windows
      • Linux
    • EntityX is an EC (entity-component) system that uses C++11 features to provide type-safe component management, event delivery, etc.
      • Free • Open Source
      • Self-Hosted