Jecs
A fast, portable Entity Component System for Luau optimized for high-performance game development.
What is Jecs?
jecs is a high-performance Entity Component System (ECS) library built specifically for Luau, the scripting language used in Roblox. It provides a data-oriented architecture for game development, enabling developers to manage complex game entities and their behaviors efficiently while maintaining excellent performance.
Roblox developers using Luau who need a performant, type-safe ECS for managing complex game logic and large numbers of entities in real-time applications.
Developers choose jecs for its exceptional performance (capable of iterating over 800,000 entities at 60 FPS) and its first-class support for entity relationships, which are essential for complex game logic. It is a zero-dependency, rigorously tested library optimized with column-major operations and cache-friendly archetype/SoA storage.
Overview
A fast, portable Entity Component System for Luau
Use Cases
Best For
- Building high-performance Roblox games in Luau that require managing hundreds of thousands of entities.
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