function: game-engine
898 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| Godot Engine Godot Engine is a free, open-source, cross-platform game engine for building 2D and 3D games from a unified editor interface. It is MIT-lic… | 99 | 116180 | stable |
| mrdoob/three.js three.js is a lightweight, general-purpose JavaScript 3D library for the web, providing scene graphs, cameras, materials, lights, loaders, … | 92 | 114822 | stable |
| bevyengine/bevy Bevy is a free, open-source, data-driven game engine and app framework written in Rust, built around a custom Entity Component System (ECS)… | 94 | 47878 | active |
| Phaser Phaser is a fast, free, open-source 2D HTML5 game framework supporting Canvas and WebGL rendering in desktop and mobile web browsers. It is… | 96 | 40211 | active |
| raysan5/raylib raylib is a simple and easy-to-use C library for videogames programming, providing bindings over OpenGL for 2D/3D graphics, input, audio, a… | 81 | 34476 | stable |
| ValveSoftware/Proton Proton is a compatibility tool for Steam Play, based on Wine and additional components, that lets Windows-exclusive games run on Linux thro… | 99 | 32656 | active |
| Anuken/Mindustry Mindustry is an open-source sandbox tower-defense and real-time strategy game written in Java, featuring resource automation, factory build… | 97 | 28747 | active |
| BabylonJS/Babylon.js Babylon.js is an open-source 3D game and rendering engine for the web, written in TypeScript and built on WebGL, WebGPU, and Web Audio. It … | 95 | 25985 | stable |
| 4ian/GDevelop GDevelop is an open-source, no-code 2D/3D game engine with a visual event-based system, built-in behaviors, multiplayer support, and AI ass… | 95 | 25969 | stable |
| libgdx/libgdx libGDX is a cross-platform Java game development framework based on OpenGL (ES) that targets Windows, Linux, macOS, Android, iOS, and HTML5… | 87 | 25337 | stable |
| google/filament Filament is Google's real-time physically based rendering (PBR) engine written in C++, designed to be small and efficient, especially on An… | 95 | 20404 | active |
| osu! osu! (lazer) is a free-to-win open-source rhythm game client developed in C#, supporting multiple game modes including osu!, taiko, catch, … | 98 | 18933 | active |
| liabru/matter-js Matter.js is a 2D rigid body physics engine written in JavaScript for the web. It simulates bodies, collisions, constraints, and composites… | 32 | 18383 | stable |
| wgpu wgpu is a cross-platform, safe, pure-Rust graphics API based on the WebGPU standard. It runs natively on Vulkan, Metal, D3D12, and OpenGL, … | 99 | 17870 | stable |
| kitao/pyxel Pyxel is a retro game engine for Python with simple, console-inspired specifications such as 16 colors and 4 sound channels, implemented in… | 93 | 17776 | stable |
| OpenEmu/OpenEmu OpenEmu is an open-source retro video game emulator for macOS that unifies multiple emulation engine backends behind a native Cocoa front e… | 44 | 17726 | active |
| A-Frame A-Frame is an open-source web framework for building 3D, AR, and VR experiences in the browser using HTML and an entity-component-system ar… | 82 | 17616 | stable |
| bkaradzic/bgfx bgfx is a cross-platform, graphics API agnostic rendering library in C++ that abstracts over backends like Direct3D 11/12, Vulkan, Metal, O… | 77 | 17433 | stable |
| OpenRA/OpenRA OpenRA is a free, open-source real-time strategy game engine written in C# using SDL and OpenGL that recreates and modernizes classic Westw… | 79 | 17288 | active |
| playcanvas/engine PlayCanvas Engine is an open-source JavaScript game engine and web graphics runtime built on WebGL2, WebGPU, and WebXR, with glTF support a… | 94 | 16566 | stable |
| libsdl-org/SDL Simple DirectMedia Layer (SDL) is a cross-platform C library providing low-level access to audio, keyboard, mouse, joystick, and graphics h… | 98 | 16425 | stable |
| official-stockfish/Stockfish Stockfish is a free, open-source UCI chess engine that analyzes positions and computes optimal moves using alpha-beta search with NNUE neur… | 77 | 16419 | active |
| OpenRCT2/OpenRCT2 OpenRCT2 is an open-source re-implementation of RollerCoaster Tycoon 2, a construction and management simulation game about running amuseme… | 98 | 16144 | active |
| glfw/glfw GLFW is a multi-platform C library for creating windows, OpenGL/OpenGL ES contexts and Vulkan surfaces, and handling input and events. It p… | 85 | 15286 | stable |
| MonoGame/MonoGame MonoGame is an open-source C#/.NET framework for building cross-platform games, re-implementing Microsoft's discontinued XNA Framework. It … | 95 | 14350 | stable |
| luanti-org/luanti Luanti (formerly Minetest) is a free open-source voxel game engine and game-creation platform with easy modding via Lua. It ships as a play… | 95 | 13499 | active |
| hajimehoshi/ebiten Ebitengine (formerly Ebiten) is an open-source 2D game engine for Go with a simple image-based drawing API. It supports desktop, mobile, we… | 99 | 13421 | stable |
| skypjack/entt EnTT is a header-only, dependency-free C++17/20 entity component system (ECS) library for game programming and other data-oriented applicat… | 86 | 13050 | stable |
| PaperMC/Paper Paper is a high-performance Minecraft: Java Edition server based on Spigot that fixes gameplay and mechanics inconsistencies while greatly … | 77 | 12604 | active |
| boardgameio/boardgame.io boardgame.io is an open-source JavaScript/TypeScript engine for building turn-based games. Developers write simple move functions and the f… | 76 | 12412 | stable |
| jrouwe/JoltPhysics Jolt Physics is a multicore-friendly rigid body physics and collision detection library written in C++. It is designed for games and VR app… | 88 | 11437 | stable |
| yairm210/Unciv Unciv is an open-source, moddable remake of Civilization V built with Kotlin and LibGDX, playable on Android and desktop platforms. It offe… | 95 | 11139 | active |
| TrinityCore/TrinityCore TrinityCore is an open-source C++ MMORPG server framework derived from MaNGOS, implementing game server logic for World of Warcraft client … | 95 | 10745 | active |
| Flame Flame is an open-source 2D game engine built on top of Flutter, providing a game loop, component system, collision detection, effects, part… | 95 | 10732 | active |
| stenzek/duckstation DuckStation is a fast, accurate PlayStation 1 (PSX) emulator for x86-64, AArch32/AArch64, and RISC-V platforms. It ships a Qt frontend plus… | 98 | 10584 | active |
| erincatto/box2d Box2D is a widely used open-source 2D rigid body physics engine for games, written in portable C17 with a data-oriented design, multithread… | 74 | 10303 | stable |
| egametang/ET ET is a C# game development framework combining a Unity3D client with a distributed C# game server, built around a fiber-based actor model … | 77 | 9898 | active |
| Cocos Engine Cocos Engine is the open-source runtime engine behind Cocos Creator, a free cross-platform 2D/3D game development tool built with a C++ cor… | 78 | 9778 | stable |
| diasurgical/DevilutionX DevilutionX is an open-source port of Diablo and Hellfire that runs the classic game on modern operating systems with engine improvements, … | 72 | 9704 | active |
| o3de/o3de Open 3D Engine (O3DE) is an Apache 2.0-licensed, multi-platform 3D game engine for building AAA games, cinema-quality 3D worlds, and high-f… | 90 | 9632 | active |
| FyroxEngine/Fyrox Fyrox is a feature-rich, general-purpose 2D and 3D game engine written in Rust, formerly known as rg3d. It includes a scene editor, GUI sys… | 83 | 9525 | active |
| chrismaltby/gb-studio GB Studio is a drag-and-drop visual game creator for making Game Boy games without programming knowledge, built as an Electron desktop app … | 96 | 9385 | active |
| diasurgical/devilution Devilution is a reconstructed version of the original Diablo (1996) game source code, reverse-engineered from leaked symbol files and debug… | 42 | 8996 | active |
| jynew/jynew An open-source wuxia RPG game framework built in Unity as a tribute to the classic Heroes of Jin Yong, with full modding support and 10+ ho… | 56 | 8949 | stable |
| pygame/pygame Pygame is a free and open-source cross-platform Python library for building multimedia applications such as video games, built on top of th… | 45 | 8905 | stable |
| azerothcore/azerothcore-wotlk AzerothCore is an open-source, modular MMO server emulator for World of Warcraft (WotLK 3.3.5a), built on MaNGOS, TrinityCore, and SunwellC… | 67 | 8838 | active |
| love2d/love LÖVE is a free, open-source 2D game framework for Lua (LuaJIT), written in C++. It provides APIs for graphics, audio, input, and physics, l… | 67 | 8655 | stable |
| SanderMertens/flecs Flecs is a fast, lightweight Entity Component System (ECS) framework for C99 and C++17 that enables building games and simulations with mil… | 92 | 8619 | stable |
| codecombat/codecombat CodeCombat is an open-source multiplayer programming game where players learn to code in Python and JavaScript by playing through browser-b… | 77 | 8551 | active |
| OpenTTD/OpenTTD OpenTTD is an open-source transport simulation game based on Transport Tycoon Deluxe, written in C++. It extends the original game with lar… | 92 | 8208 | stable |
| azahar-emu/azahar Azahar is an open-source Nintendo 3DS emulator based on Citra, created by merging PabloMK7's Citra fork with Lime3DS after Citra was discon… | 92 | 7975 | active |
| recastnavigation/recastnavigation Recast Navigation is an industry-standard C++ toolset for generating navigation meshes from level geometry and performing runtime pathfindi… | 54 | 7875 | stable |
| stride3d/stride Stride (formerly Xenko) is a free, open-source, cross-platform C# game engine for building 2D and 3D games, VR experiences, and interactive… | 93 | 7804 | active |
| sschmid/Entitas Entitas is a fast Entity Component System (ECS) framework built specifically for C# and Unity, optimized for garbage-collected environments… | 23 | 7671 | stable |
| endless-sky/endless-sky Endless Sky is a free, open-source 2D space exploration, trading, and combat game inspired by Escape Velocity and Elite. Players captain a … | 88 | 7519 | active |
| veloren/veloren Veloren is an open-source, multiplayer voxel action-adventure RPG inspired by Cube World, Dwarf Fortress, and Breath of the Wild. It featur… | 67 | 7503 | active |
| mgba-emu/mgba mGBA is a fast and highly accurate emulator for Game Boy Advance games, with additional support for Game Boy and Game Boy Color titles. It … | 74 | 7319 | active |
| Zelda64Recomp/Zelda64Recomp Zelda 64: Recompiled is a static recompilation of The Legend of Zelda: Majora's Mask (with Ocarina of Time planned) into a native PC port, … | 70 | 7209 | active |
| turanszkij/WickedEngine Wicked Engine is an open-source C++ 3D game engine with modern graphics features like ray tracing, global illumination, and physically base… | 99 | 7203 | active |
| FlaxEngine/FlaxEngine Flax Engine is a modern, multi-platform 3D game engine written in C++ and C# with full source code available. It provides an editor, real-t… | 82 | 6983 | active |
| wesnoth/wesnoth The Battle for Wesnoth is an open-source, turn-based tactical strategy game with a high fantasy theme, featuring singleplayer campaigns and… | 77 | 6844 | stable |
| renpy/renpy Ren'Py is an open-source visual novel engine that lets creators build interactive stories using words, images, and sounds, combining an eas… | 94 | 6766 | active |
| BoomingTech/Piccolo Piccolo (formerly Pilot) is a small open-source C++ game engine built for the GAMES104 course. It includes a Vulkan-based renderer, physics… | 23 | 6689 | active |
| OpenMW/openmw OpenMW is an open-source, cross-platform game engine that reimplements the Morrowind engine, allowing players to run The Elder Scrolls III:… | 87 | 6529 | active |
| 00-Evan/shattered-pixel-dungeon Shattered Pixel Dungeon is an open-source traditional roguelike dungeon crawler RPG with randomized levels, enemies, and hundreds of items,… | 82 | 6466 | active |
| Facepunch/sbox-public s&box is a modern game engine built on Valve's Source 2 and .NET, with an intuitive editor for creating games. This repository contains the… | 61 | 6416 | active |
| bfirsh/jsnes JSNES is a Nintendo Entertainment System (NES) emulator written in JavaScript, distributed as a library usable in both the browser and Node… | 88 | 6414 | active |
| melonjs/melonJS melonJS is an open-source, MIT-licensed 2D/2.5D HTML5 game engine for indie developers, built with ES6 classes and TypeScript support. It p… | 99 | 6376 | active |
| htdt/godogen A generator that publishes thin game repos where AI coding agents (Claude Code or Codex) autonomously build complete games for Godot 4, Bev… | 57 | 6334 | active |
| MirrorNetworking/Mirror Mirror is the most popular free open-source networking library for Unity, forked from Unity's deprecated UNET HLAPI and battle-tested since… | 95 | 6305 | stable |
| defold/defold Defold is a free, source-available, cross-platform game engine for building 2D and lightweight 3D games for desktop, mobile, web, and conso… | 99 | 6269 | active |
| erincatto/box3d Box3D is a 3D rigid body physics engine for games, written in portable C17 with a data-oriented design. It provides collision detection, jo… | 66 | 6174 | active |
| rust-windowing/winit winit is a cross-platform window creation and management library written in pure Rust. It provides a unified API for creating windows and h… | 85 | 6120 | active |
| nesbox/TIC-80 TIC-80 is a free, open-source fantasy computer for making, playing, and sharing tiny retro games. It bundles code, sprite, map, and sound e… | 64 | 6103 | active |
| dialogic-godot/dialogic Dialogic 2 is a Godot 4.5+ plugin for creating in-game dialogs, visual novels, and RPGs with a visual timeline editor and character managem… | 88 | 5941 | active |
| Redot-Engine/redot-engine Redot Engine is a free, open-source, community-driven fork of Godot for building 2D and 3D games from a unified node-based editor. It suppo… | 86 | 5922 | active |
| galacean/engine Galacean Engine is a high-performance, real-time interactive 2D/3D engine written in TypeScript, built on WebGL/WebGL2 with support for ani… | 87 | 5878 | active |
| smogon/pokemon-showdown Pokémon Showdown is a Pokémon battle simulator that runs as a website, a self-hostable game server, and a JavaScript library for simulating… | 87 | 5858 | active |
| vcmi/vcmi VCMI is an open-source, from-scratch reimplementation of the Heroes of Might and Magic III game engine, licensed under GPL-2.0. It uses the… | 99 | 5807 | active |
| KhronosGroup/MoltenVK MoltenVK is a layered implementation of the Vulkan 1.4 graphics and compute API built on top of Apple's Metal framework, enabling Vulkan ap… | 97 | 5804 | active |
| CaffeineMC/sodium Sodium is a high-performance rendering engine replacement and optimization mod for the Minecraft client. It significantly improves frame ra… | 97 | 5735 | active |
| Rapier Rapier is a set of high-performance 2D and 3D physics engines written in Rust, providing rigid-body dynamics, joint constraints, collision … | 76 | 5683 | stable |
| ConfettiFX/The-Forge The Forge is a cross-platform rendering and game framework written in C++, supporting Windows (DirectX 12/DXR), macOS/iOS (Metal), Android,… | 47 | 5642 | active |
| tModLoader/tModLoader tModLoader is an open-source, community-driven modding API and mod loader for the game Terraria, distributed as a free Steam app. It lets p… | 98 | 5591 | active |
| cuberite/cuberite Cuberite is a lightweight, fast, and extensible Minecraft-compatible multiplayer game server written in C++ with a flexible Lua plugin API.… | 58 | 5442 | active |
| google-deepmind/open_spiel OpenSpiel is a collection of game environments and reinforcement learning/search/planning algorithms for research in general RL and multiag… | 98 | 5435 | active |
| liangxiegame/QFramework QFramework is a lightweight (under 1000 lines of core code) system design architecture and game development framework for Unity and Godot, … | 83 | 5423 | active |
| CharlesPikachu/Games A collection of classic 2D mini-games (tank war, flappy bird, puzzle, ski, etc.) implemented in pure Python with pygame, published as the c… | 23 | 5405 | active |
| supertuxkart/stk-code SuperTuxKart is a free, open-source 3D kart racing game focused on fun rather than realistic physics, with single-player and online multipl… | 72 | 5312 | active |
| HarbourMasters/Shipwright Ship of Harkinian (SOH) is a cross-platform PC port of The Legend of Zelda: Ocarina of Time built on the libultraship library and the OOT d… | 92 | 5295 | active |
| The-Powder-Toy/The-Powder-Toy The Powder Toy is a free, open-source falling-sand physics sandbox game written in C++ with SDL, simulating air pressure, velocity, heat, a… | 94 | 5281 | active |
| piqnt/planck.js Planck.js is a JavaScript/TypeScript rewrite of the Box2D 2D rigid-body physics engine, designed for cross-platform HTML5 game development.… | 66 | 5275 | active |
| EsotericSoftware/spine-runtimes Official runtime libraries for loading and rendering Spine 2D skeletal animation data in game engines and toolkits across many languages. T… | 76 | 5266 | stable |
| panda3d/panda3d Panda3D is a mature, open-source cross-platform game engine and 3D rendering framework for Python and C++, originally developed by Disney a… | 73 | 5213 | stable |
| mosra/magnum Magnum is a lightweight and modular C++11/C++14 graphics middleware library providing a slim wrapper over OpenGL, OpenGL ES, WebGL and Vulk… | 67 | 5194 | stable |
| Baekalfen/PyBoy PyBoy is a Game Boy and Game Boy Color emulator written in Python, usable both as a standalone terminal application and as an embeddable Py… | 89 | 5193 | active |
| dotnet/Silk.NET Silk.NET is a .NET library providing high-performance bindings to low-level graphics, compute, audio, and multimedia APIs such as OpenGL, V… | 77 | 5173 | active |
| TwilitRealm/dusklight Dusklight is a reverse-engineered, open-source reimplementation of The Legend of Zelda: Twilight Princess that runs the game natively on PC… | 80 | 5152 | active |
| godot-rust/gdext gdext provides Rust bindings for the Godot 4 game engine, letting developers write game logic and engine extensions in Rust via GDExtension… | 98 | 5131 | active |
| XProger/OpenLara OpenLara is an open-source reimplementation of the classic Tomb Raider game engine, supporting original game assets in .PHD, .PSX, .TR2, an… | 65 | 5066 | active |
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