A header-only, fast, and reliable entity-component system (ECS) library for modern C++ game development.
EnTT is a header-only C++ library that provides a fast and reliable entity-component system (ECS) for game development and other data-oriented applications. It solves the problem of managing complex game object state efficiently by decoupling data (components) from behavior (systems), enabling high-performance iteration and memory locality.
C++ developers building games, simulations, or other real-time applications that require efficient data management and entity architecture, particularly those using modern C++ (C++20 or later).
Developers choose EnTT for its exceptional performance, memory efficiency, and comprehensive feature set—all in a header-only, easy-to-integrate package. Its proven adoption in major projects like Minecraft and ArcGIS SDKs underscores its reliability and scalability.
Gaming meets modern C++ - a fast and reliable entity component system (ECS) and much more
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EnTT is entirely header-only, allowing seamless inclusion with just a single file and no complex build steps, as emphasized in the README's integration section.
Benchmarks and adoption in demanding projects like Minecraft and ArcGIS SDKs validate its speed and memory efficiency for real-time applications, with a 'pay for what you use' philosophy.
Beyond core ECS, it offers runtime reflection, resource management, schedulers, and signal handling, providing a rich toolkit for game programming and more.
Leverages C++20 features for an intuitive, type-safe API that encourages best practices, with clean code examples in the README demonstrating ease of use.
The library requires a full-featured C++20 compiler, excluding legacy projects or environments with older toolchains, as stated in the requirements section.
As a pure ECS library, it lacks graphics rendering, physics, or audio systems, forcing developers to integrate and maintain additional third-party libraries for a complete game engine.
Documentation is primarily in-code via doxygen, which the README notes is for 'the brave,' making it less accessible for beginners compared to tutorial-driven guides.