C++ Ecs

Open-source C++ projects categorized as Ecs
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CPP entity-component-system Game Engine Game development Cpp20
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Top 17 C++ Ec Projects

Ecs

  1. entt

    Gaming meets modern C++ - a fast and reliable entity component system (ECS) and much more

    Project mention: Writing memory efficient C structs | news.ycombinator.com | 2025-07-30

    Optimizing struct layouts is cool. but if your motivation is to pack more monsters in your game definitely consider transposing your row oriented monster struct into a column oriented entity using Entity Component System.

    Example framework:

    https://github.com/skypjack/entt?tab=readme-ov-file

    It has benefits besides memory/cache optimizations. It organizes logic in a much more composable way that is friendly for reuse.

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  3. SpartanEngine

    A game engine with an emphasis on real-time cutting-edge solutions

  4. Lumos

    Cross-Platform C++ 2D/3D game engine

  5. godex

    Godex is a Godot Engine ECS library.

  6. peredvizhnikov-engine

    A fully lock-free game engine written in C++20

  7. edyn

    Edyn is a real-time physics engine organized as an ECS.

  8. neoGFX

    Cross-platform GPU-oriented C++ application/game framework

  9. InfluxDB

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  10. Rythe-Engine

    Rythe is a data-oriented C++20 game engine built to make optimal use of modern hardware.

  11. supernova

    Game engine for 2D and 3D projects with entity component system (ECS) and data-oriented design

  12. slot_map

    A slot map is a high-performance associative container with persistent unique 32/64 bit keys to access stored values.

  13. ecs_benchmark

    Benchmarks of common ECS (Entity-Component-System)-Frameworks in C++ (or C)

  14. imgui_entt_entity_editor

    A drop-in entity editor for EnTT with Dear ImGui

  15. apecs

    A petite entity component system (by fullptr)

  16. Tecs

    Tecs (Transactional, Thread-safe, Templated ECS)

  17. MSG

    MSG (FUIYOH!) stands for Modular Scene-Graph

  18. kawa_ecs

    Lightweight, fast, modern ecs library written in c++ 20

    Project mention: Kawa: ECS – A fast and modern ECS for C++20 Looking for Feedback and Testers | news.ycombinator.com | 2025-07-10

  19. PathOfCPP

    2D ARPG heavily inspired by PoE, written in C++ using SDL2 library for WinAPI and Rendering.

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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

C++ Ecs discussion

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C++ Ecs related posts

  • Unity's Self-Combustion Engine

    1 project | news.ycombinator.com | 16 Sep 2023

  • Introducing Ecsact

    8 projects | dev.to | 24 Jun 2023

  • What are the limits of blueprints?

    4 projects | /r/unrealengine | 25 May 2023

  • What's the hot tech stack these days?

    2 projects | /r/PBBG | 23 May 2023

  • How to implement ECS based physics

    1 project | /r/godot | 15 May 2023

  • Sharing Saturday #458

    6 projects | /r/roguelikedev | 17 Mar 2023

  • Correct architecture in Godot

    2 projects | /r/godot | 4 Mar 2023
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    sevalla.com | 1 Sep 2025
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Index

What are some of the best open-source Ec projects in C++? This list will help you:

# Project Stars
1 entt 11,512
2 SpartanEngine 2,640
3 Lumos 1,424
4 godex 1,313
5 peredvizhnikov-engine 733
6 edyn 705
7 neoGFX 561
8 Rythe-Engine 540
9 supernova 366
10 slot_map 294
11 ecs_benchmark 261
12 imgui_entt_entity_editor 244
13 apecs 17
14 Tecs 15
15 MSG 15
16 kawa_ecs 14
17 PathOfCPP 4

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