awesome-open-source-games

3D Hartwing Chess Set

3D chess game done in HTML/CSS/JavaScript

c4

Connect Four game where player is playing against an AI

Desperate Gods

Free online board game that was designed to be played just like a board game in real-life: no rules are enforced by the computer

Green Mahjong

Solitaire mahjong game done in HTML/CSS/JavaScript

Kriegspiel

The game of imperfect information, the Kriegspiel chess variant

Lichess

Free chess game using HTML5 & websockets built with Scala, Play 2.8, MongoDB and Elasticsearch

Alge's Escapade

Help Alge escape by moving through the levels to the escape tube

Alien Invasion

Don't let the aliens reach the bottom, eliminate them using your spaceship

Arashi

Clone of the Arcade game Tempest. Survive as long as possible and score many points as possible

Pure JavaScript asteroids. Destroy asteroids ans saucers controlling a triangular ship rotating left and right

Avabranch

Get your Ava away from the blocks moving between them

Ball And Wall

Destroy the blocks using the Vaus, that is ejected from the ship

Breakout

Breakout multiplayer with HTML5. Destroy the blocks using one ball from your ship

Captain Rogers

Captain Rogers: Asteroid Belt of Sirius - HTML5 mobile game created using ImpactJavaScript

Ceros Snake

A remake of the iconic 70's Snake game

CHANG€

Intense game about the extreme life of supermarket cashiers

Chromacore

2D musical platformer set in a dark, black & white world that progressively becomes more colorful and happy through successful gameplay

Jolly Jumper

Infinite jumping style game inspired by Doodle jump

Clumsy Bird

Flappy Bird clone in JavaScript using MelonJavaScript

Coffee Snake

HTML5 snake game written in CoffeeScript

Coil

HTML5 canvas game where you defeat enemies by wrapping enemies in your trail

Color Quest

Infinite runner following a black and white pixel's quest to change into a color pixel

Core Commiter

Choose an open source project and help that project by sorting code to proper branches

Crappy Bird

Flappy Bird clone in JavaScript and Canvas2D API

Custom Tetris

Play the classic Tetris game the way you like it

D3shooter

Asteroids style game in HTML5 as a demo of the d3 library

Digger

The player is placed in an underground maze and can dig horizontal and vertical tunnels through it

Drakonas

Classic shoot 'em up game build with the Three.js library

Drill Bunny

Drill game with a bunny finding good stuff under the earth

DuckHunt ported to JavaScript and HTML5 with a level creator

Emberwind

Fantasy game port of the indie platform game Emberwind

ExecutiveMan

Clone of NES game MegaMan, written in JavaScript

Fluid Table Tennis

Renders a table tennis game interacting with a full-color real-time fluid simulation at 60 FPS

Heal 'em All

Explore old, abandoned graveyard, heal as many zombies as you can, and find your way out. But be careful not to become one of them

HotFix

Help Hotfix collect stargazers and avoid enemies. Collect commits to upgrade hotfix and add new features

Hyperspace Garbage Collector

Guide N4n through the dangerous trash-heap caverns to reach the Primary Systems Core and restore compliance to the Trash

I Spy A Ghost

An experimental p2p multiplayer game made in HTML5/Phaser using WebRTC

Jekyll & Hyde Collide

Simple Unity 2d game that is very literally based around the theme of "change" using the classic Jeykll and Hyde story

JumpSuit

With your awesome suit, jump from planet to planet to conquer them

Mario 5 HTML

Infinite Mario in HTML5 JavaScript using Canvas and Audio elements

Mega Girl

The hyper-deluxed-super-mega software that beats back those malicious apps

Masonry JavaScript Tetris Clone

Tetris clone created using HTML5/JavaScript/Phaser

Monster Wants Candy

Monster Wants Candy demo is a simple HTML5 game created with Phaser 2.0.7

Octocat Jump

Navigate your ever-jumping Octocat and collect stars for extra points

Onslaught Arena

Fight off hordes of classic medieval monsters in this fast paced arcade shooter

Addictive game where you guide little Pappu around obstacles while collecting coins, stars, and berries and avoiding enemies known as Pakias

Phaser Snake

JavaScript version of the snake game, created using the Phaser Engine

PixelPlatformer

Simple platformer game that demostrates the power of the Entity game engine

PolyBranch

Minimalist 3D game. Dodging branches may seem easy at first, let's see how long can you hold up as you approach terminal velocity

Protocol 390

To survive in People's Park, you must supply the prophet with change

Raging Gardens

JavaScript/HTML5 web browser game where a a hungry (ninja) rabbit farts too often

Release Cycles

Abstract racing game where you fight against the clock and the computer to get as far as you can in a product's life-cycle

Save The Forest

Fully canvas based HTML5 game where a player has to extinguish fire on tress using his magical water tank in order to save the Burning Forests

Ski Free

Controls a skier on a mountain slope, avoiding obstacles while racing against time or performing stunts for points, depending on the game mode

Snake

Simple clone of the snake game, using canvas and JavaScript

Snake_new

Classic nokia snake game using web

Space-Shooter

Classic shoot'em up space shooter build in HTML5 with multiplayer

Spashal

Danger lurks around every corner in space

Square Off!

Multiplayer 1v1 air-hockey style game, place squares to deflect the ball

Space Crusade

HTML5 game developped with PhaserJavaScript Framework

Super Mario Bros

Super Mario Bros level one written with Backbone Game Engine

Survivor

Playable HTML + CSS + JavaScript remake of a space-based "shoot-'em-up" arcade game for Atari / Commodore 64 from 1982, including a level editor and design tool

WPilot

Browser-based remake of the famous XPilot game, built with Node.js and HTML5

Zedinvaders

Game is based on our original comic ZED, seen inside "zero-episode" called "Game Over"

111 one-button games

One button games are famous for realizing various actions with one button

BananaBread

Port of the Cube 2/Sauerbraten 3D game engine/first person shooter to the web, compiling C++ and OpenGL to JavaScript and WebGL using Emscripten

Diablo JavaScript

Isometric minimal-code style game at HTML5 canvas and JavaScript

Roguish

RPG/Rogue-like game created in JavaScript

Room for Change

Randomly generated action RPG. You play as a chubby archeologist who is tasked to retrieve three sacred artifacts from the pyramid of the legendary Pharaohs

BrowserQuest

HTML5/JavaScript multiplayer game experiment

Ancient Beast

Materialize and control beasts in order to defeat your opponents

Command & Conquer

Recreation of the original Command and Conquer, Real Time Strategy game entirely in HTML5 and JavaScript

Freeciv-web

Build cities, collect resources, organize your government, and build an army, with the ultimate goal of creating the best civilization

Hexa Battle

Turn based dungeon crawler written with Typescript, using React and SVG

Rapid Dominance

Open source turn-based strategy game. Clone of the Enemy Flag

Tower Defense

3D Tower Defense build with Three.js in HTML5

HexGL

Futuristic HTML5 racing game, challenge your friends on this fast-paced 3D game

Trigger Rally Online Edition

Fast arcade rally racing action, play in your browser with WebGL 3D graphics

3d.city

Goal was to build a city in 3D to test the performance of WebGL and and Three.js

Blk Game

Fully modifiable multiplayer voxel world in JS that can run efficiently in the browser

Cube Engine

Resembles that of Minecraft, a popular voxel-type 3D game based on boxes

2048

Clone of 1024, based on Saming's 2048

A Dark Room

Dodge and shoot the red targets, grabbing the bombs as you go. Survive as long as possible and try to get a high score

Anagramica

A word game and API for anagrams

Astry

WebGL maze game built with Three.js and Box2dWeb

Beatrix

Music game where you arrange the drums to catch the beats and play the right rhythm

BitBot

HTML/JavaScript game where you control a bot, which must sense, plan, and act

BlicblockJavaScript

JavaScript game based on Blicblock in The Sims 4. Match tetrominoes to clear the board

Blockrain.js

Embed & play the classic game on your site. Simple as that

Branching Out

Minimalist game about leaving home

Clone Man

Puzzle, memory, retro game with simple graphics

Couch 2048

A physics-based puzzle, loosely related to the original 2048 game

cube-composer

A puzzle game inspired by functional programming

Drunken Viking

Retrace your drunken rampage in reverse time

Roguelike puzzle game

Follow me! A Simon Clone

Fully commented version of the famous game in JavaScript, built using Phaser game engine

For King

Puzzle platformer game about a king in search for his lost crown

Genetic Drift

Victor, an annoyed janitor dealing with a lot of annoyed clones and the problems that inevitably arise from genetic duplication. Will he make it home to feed his faithful pet companion?

Hex 2048

Hexgrid-based clone of 2048

Hexahedral

Push down all the blocks in the minimum number of moves

Hextris

Addictive puzzle game inspired by Tetris

Infectors

Sokoban-like puzzle game developed with Phaser

Lost! Beneath the Surface

You're a firefly lost in the dark, beneath the surface and must find a way out of the mazes created by the horrors in the dark

Maze 3D

A 3D maze game

Monkey Rally

JavaScript game created for the Ludum Dare #28 jam

Puzzle game with isometric 3D graphics inspired by Sokoban

Orbium

Modern version of the 90's game Logical

Parity

A numbers puzzle game

Pond

The Pound is about relaxing and exploring a beautiful world

Pop Pop Win

Implementation of Minesweeper in Dart

Prism

Match all the colors

Push and Fork

Puzzle game in which you carry a fork, push blocks, and go back in time

Shape Experiment

The shape recognition reflex game

Sliding Puzzle

Sliding blocks puzzle game

Sudoku JavaScript

A Sudoku puzzle game with a clean design and mobile devices in mind

Swap

New take on the classic tile-based puzzle game, where you change which character you're controlling to reach your goal

TransCube

2d puzzle platformer based on the concept of transforming into different "blocks", with their unique properties, and making you way to the end of the level with the provided transformations

Untrusted

Meta-JavaScript adventure game by Alex Nisnevich and Greg Shuflin

Matching Pairs

Made in HTML5 using Phaser as the framework, original assets and generated music

Zoko

3D version of Sokoban

Zop

Connect like colors

Particle Clicker

Addictive incremental game that teaches players the history of high energy particle physics

The House

You're in a strange house. Can you find the way out? Is there any?

Beast

An homage to the 1984 ASCII game "BEAST" from Dan Baker, Alan Brown, Mark Hamilton and Derrick Shadel written in node. You have to squash little ASCII beasts between pushable blocks but watch you to not be eaten by them

Binb

Competitive, multiplayer, realtime, guess the song game

Dental Defender: Saga of the Candy Horde

HTML5 shooter/tower defense game for the #CandyJam

Descensus 2

A TypeScript 2D physics game

Hauberk

Hauberk is a roguelike, an ASCII-art based procedurally-generated dungeon crawl game. It's written in Dart and runs in your browser

HeartLine

Game made in 48 hours for the 2013 Global Game Jam

Psiral

JavaScript/HTML5 game, GitHub Game Off 2 winner

CyberPong

Unusual Ping Pong game, adaptable with Makey Makey Kit

Squirts

Well-known indie game implemented in JavaScript

The Killer

Flash/ActionScript3-based "nongame"

Turkey Cooking Simulator

You have been invited to craft the centerpiece of the American thanksgiving dinner, the turkey. Woo your girlfriend / boyfriend and be judged by your future in-laws! Apply your culinary expertise to impress your family

Double Damnation

Exclusively Co-Op Metroidvania with Smash Bros Melee Movement

Hypersomnia

Competitive top-down shooter with extreme dynamics and pixely nostalgia. Has a built-in map Editor

OpenTomb

Open-source Tomb Raider 1-5 engine remake

C-Dogs SDL

Overhead shoot-em-up port of the classic DOS game

Chaos Projectile

2D run'n'gun action game with RPG elements

Clonepoint

Libre clone of Gunpoint, a game in which you hack and punch your way to victory

DynaDungeons

Bomberman clone using the awesome open source Godot game engine

Duckmarines

A ChuChu Rocket remake for PC

Indie, side-scrolling, action, RPG

Falling Time

Arcade game inspired by Fall Down

Kroniax

Sidescrolling skill-based game

Missile Command

Missile Command clone in Lua with LÖVE

Mystic Mine

Single and multiplayer action game with mining carts

OpenLieroX

Liero clone, like realtime Worms, or a 2D Quake

OSGG

Oldskool Gravity Game, very difficult lander game in glorious vector graphics

Savage Wheels

2D car crashing game similar to the old classic Destruction Derby

Space Shooter

Cross platform, 2D space shooting game made using pygame

SDL-Ball

Pretty looking breakout clone available in most distributions

Taisei

Fan-made, open Source clone of the Touhou series

Teeworlds

Online multi-player platform 2D shooter

Wannabe Tempest

Tempest(80's arcade game) clone in Java, and a small project for playing with git

Witch Blast

Roguelite dungeon crawl shooter similar to The Binding of Isaac

osu!

Rhythm is just a away!

AssaultCube

Total conversion of Wouter van Oortmerssen's FPS called Cube

Darkest Hour

World War 2 online multiplayer tactical shooter based on Red Orchestra: Ostfront

Freedoom

Free software FPS based on the classic Doom engine

GlPortal

A modern 3D game and engine with portals written in C++

Ioquake3

The free software FPS engine that can be used to play Quake 3, or make your own game

OpenLara

Tomb Raider open-source engine

Openspades

Compatible client of Ace of Spades 0.75

Fun-filled new take on the first person arena shooter, featuring parkour, impulse boosts, and more

Unvanquished

Fast-paced, futuristic FPS with RTS elements

Urban Terror

Free multiplayer first person shooter that will run on any Quake III Arena compatible engine

Fast-paced FPS in a futuristic cartoonish world

Meridian 59

The first 3D MMORPG, released in 1996 and open sourced in 2012 - the game is being actively developed by the community

Stendhal

Fun friendly and free 2D multiplayer online adventure game with an old school feel

Angband

Single-player dungeon exploration game in the universe of JRR Tolkien

Arx Fatalis

Cross-platform port of Arx Fatalis, a first-person role-playing game

Cataclysm: Dark Days Ahead

Roguelike set in a post-apocalyptic world

Cendric

Platformer-RPG in a fantasy setting with puzzle elements

Dungeon Crawl Stone Soup

Single-player roguelike dungeon exploration game with a larger focus on combat compared to other popular roguelikes

Dungeon Monkey Eternal

Party-based fantasy roguelike role-playing game

Egoboo

Cool 3D dungeon crawling game in the spirit of NetHack

Flare RPG

Fantasy action RPG game with its own engine

Freeablo

Open-source implementation of the Diablo I engine

NetHack

Single-player roguelike dungeon exploration game and one of the most popular games in its genre

OpenMW

Reimplementation of the Morrowind game engine

An open source game based on the source code of Pixel Dungeon by Watabou

The Legend of Zelda: Mystery of Solarus DX

Sequel to The Legend of Zelda: A Link to the Past released on the SNES

Valyria Tear

Single-player medieval-fantasy 2D J-RPG

AAAAXY

Nonlinear 2D puzzle platformer taking place in impossible spaces

Captain Holetooth

A fun, explorative and story-driven platformer with minigames. Made with the Godot Engine

Commander Genius

Commander Keen compatible clone

DDraceNetwork

Cooperative online precision platformer with thousands of maps and global ranks

Elemental One

Built with the Phaser HTML5 game framework

Escape of the cat

Hardcore oldschool platformer on

Frogatto

Action-adventure game, starring a certain quixotic frog

Gish

Award-winning physics platformer

Journey to the Center of Hawkthorne

This 2d platformer is based on Community's Digital Estate Planning episodebuilt using the LÖVE game engine

Mario-Level-1

First level of Super Mario Bros made with Python and Pygame

HFT Mario Party

A remixed local multiplayer reimagining of the original Mario Bros

Sky Engine

Custom engine 2D platform game made with OpenGL

The Legend of Edgar

2D platform game with a persistent world

The Secret Chronicles of Dr. M.

A 2D platform game in classic style

SuperTux

Classic 2D jump'n'run sidescroller with Tux

2048-cli

CLI version of the game 2048 for your Linux terminal

2048-in-terminal

CLI version of the game 2048 made right

Castles of Dr. Creep

The Castles of Dr. Creep

Dominion

C# implementation of Dominion, a board/card game

EbbeFlut

Really nice board game implemented in a bad way a VERY long time ago

IRMINGARD

Patience card game written in Ruby

Minilens

Cute puzzle platformer starring a cleaning robot on post-apocalyptic Earth

Nudoku

Ncurses based CLI sudoku game

PuzzleDash

Match-3 puzzle game

Tictactoe

Graphical tic-tac-toe AI which never loses

Wizznic

Most awesome puzzle game

PokerTH

Implementation of Texas Hold'em supporting (online) multiplayer and botplay

Stunt Rally

Rally game with Track Editor, based on VDrift and OGRE

SuperTuxKart

Free 3D kart racing game featuring open source mascots

CengBall

Soccer programming game with 2D simulation

Blackvoxel

Sandbox game based on a molecular voxel interaction engine

Craft

Simple Minecraft clone written in C using modern OpenGL

Endless Sky

Space trading and combat game similar to the classic Escape Velocity series

Freeminer

Sandbox game inspired by Minecraft

Minecraft

Simple Minecraft-inspired demo written in and

Manic Digger

A multiplayer block-building voxel game, Minecraft clone

Minetest

Infinite-world block sandbox game with survival and crafting

Pycraft

A Minecraft-inspired game for the terminal

Rigs of Rods

Soft-Body physics simulator for vehicles and more

Space Engineers

Space Engineers is a voxel-based sandbox game set in an asteroid field in space

Terasology

Voxel world game engine inspired by Minecraft and others with fancy graphic effects and a heavy focus on extensibility

The Powder Toy

Falling-sand physics sandbox game

0 A.D.

3D RTS similar to Age of Empires II

Caesaria

Remake of the popular citybuilder and economic sim Caesar III

Colobot

A real-time strategy game with programmable bots

CorsixTH

Clone of Theme Hospital

Curse of War

Fast-paced action strategy game with ncurses and SDL frontends

Harris

Strategy game based around the actions of RAF Bomber Command in the Second World War

Hedgewars

A turn based strategy, artillery, action and comedy game

KaM Remake

RTS game remake of “Knights and Merchants” written in Delphi from scratch

KeeperRL

Roguelike dungeon builder inspired by Dwarf Fortress

Last Colony

RTS game with both a single player campaign mode as well as a multiplayer mode, created entirely in HTML5 and JavaScript

MegaGlest

MegaGlest real-time strategy game engine (cross-platform, 3-d)

Micropolis

City-building game based on the original code for SimCity

An open source sandbox tower-defense game

Openage

Clone of the Age of Empires II engine

OpenDungeons

Open source game inspired by Dungeon Keeper - Dark, damp and dangerous

OpenFodder

Open-source implementation of Cannon Fodder

OpenRA

Open-source implementation of the Red Alert engine using .NET/mono and OpenGL. Runs on Windows, Linux and macOS

OpenTTD

OpenTTD is a transport simulation game based upon the popular game Transport Tycoon Deluxe, written by Chris Sawyer

OpenXcom

Clone of the original X-COM

Pax Britannica

Underwater one-button real-time strategy game

PCOTM (Phone Case of the Monster)

Ruby game, where you play as a phone-collecting monster

Pioneer

Game of lonely space adventure

Polly-B-Gone

Physics platform game about a plucky wheeled robot named Polly

OpenRCT2

Open source recreation of Rollercoaster Tycoon 2

Race into Space

Turn-based space race strategy game originally by Interplay

Seven Kingdoms: Ancient Adversaries

Classic RTS game liberated in 2009

Source of Tales

Entry in the Liberated Pixel Cup 2012

Tanks of Freedom

Turn-based strategy game in isometric pixel-art style

The Battle for Wesnoth

Turn-based strategy game with a high fantasy theme

2D isometric RTS economic strategy game written in C++ & Python, built on the Flexible Isometric Free Engine

Voxeliq

Block-based game engine implementation developed with C#

Wargus

Wargus is a Warcraft2 Mod that allows you to play Warcraft2 with the Stratagus engine

Warzone 2100

Postnuclear realtime strategy

Wyrmsun

Strategy game based on history, mythology and fiction

Zero-K

Open source RTS game with physical projectiles and smart units

Real-time strategy based on the original Stronghold series

ChaseWhisplyProject

Chase Whisply is a FPS. You have to seek, find and kill the ghosts living around you

Colorphun

ColorPhun is a simple color based Android Game

Game of Life

Conway's Game of Life with editable rules

Gidi Games

Lexis, TicTacToe, Puzzlemania - a collection of 3 board games done with Cocos2d for Android

Green Wall

Weirdly addictive arcade-style android game, where you fling fruit at a wall. Project developed using Android Studio 1.0

Memory Game

Simple and beautiful memory game for kids

Pimple Popper

Game to pop pimples using the awesome Godot Engine

Pixel Dungeon

Traditional roguelike game with pixel-art graphics and simple interface

PuzzleGame

Slider puzzle game implementation created with Cocos2d for Android

Wannabe Tempest

Clone of 80's coin-op arcade game Tempest(80's arcade game)

Bat Loves Bugs

Arcade game about a bug-craving bat

Bridges

Puzzle game with bridges, houses, tolls, and subways for iOS

Canabalt

Release of Canabalt for iOS

Choose Figure

Simple logic game. Choose the right figure. Train your attention

Doom

Doom Classic for iOS

DrugsNRock

Simple multiplayer rhythm game designed during the 2013 Global Game Jam

FinalFighter

Tank deathmatch battle game developed using Cocos2D

Gorillas

Iphone port of the popular old QBasic game

Light Jockey

iOS Auditorium-like game

Lumio

Puzzle game for iOS developed using Cocos2D. Available free on the App Store

Sakura Fly

iOS action game developed using SpriteKit. Available free on the App Store

Wolfenstein 3D

Wolfenstein 3D for iOS Source Release

c4bot

Chat bot that plays Connect Four with you, works in web chat, Facebook Messenger, Skype, and Telegram

Aquaria

Breath-taking underwater fantasy game. Winner of the Grand Prize at the 2007 Independent Games Festival

Doom 3

Doom 3 GPL source code release

Includes Doom, Quake, Wolfenstein and more

Jedi Academy

Jedi Academy source only, mirror of SourceForge from Raven Software

Jedi Outcast

Jedi Outcast source only, mirror of SourceForge from Raven Software

MaNGOS

Full featured World of Warcraft server

Miner Wars 2081

For modders of Miner Wars 2081, a 6DOF action-survival space-shooter simulation-game set in the year 2081

OpenJK

Community maintained fork of Jedi Academy and Jedi Outcast development

Prince of Persia

Source code for the original Prince of Persia game that was written on the Apple II, in 6502 assembly language, between 1985-89

UFO RUN

Real time multiplayer with Nextpeer

System Shock

Source code for original System Shock game (PowerMac version), more readable fork available

Akihabara

Set of libraries, tools and presets to create pixelated indie-style 8/16-bit era games in JavaScript

Allegro 5

C++ libraries to make 2D games(graphics, sound, etc.)

Ammo.js

Direct port of the Bullet Physics engine to JavaScript using Emscripten

Atomic Engine

Features 2D and 3D rendering, standards compliant JavaScript, full Player and Editor source on GitHub, Windows & Mac Editors, with deployment to Windows, Mac, WebGL, Android, and iOS from the editor

Complete JavaScript framework for building 3D games with HTML 5 and WebGL

Bgfx

Cross-platform rendering library

Chilli Works

An open source, cross-platform game engine designed for indie developers

Chipmunk Physics

Simple, lightweight, fast and portable 2D rigid body physics library written in C

ChoiceScript

A language/engine for developing text-based multiple-choice interactive novels

Cocos2d for Android

Cocos2d for Android, based on cocos2d-android-0.82, and now ported from cocos2d-iphone 0.99.4

Cocos2d for iPhone

Framework for building 2D games, demos, and other graphical/interactive applications for iPod Touch, iPhone, iPad and Mac. It is based on the cocos2d design but instead of using python it, uses objective-C

Cocos2d for HTML5

Cocos2d for Web Browsers. Built using JavaScript

Cocos2d-x

Multi-platform framework for building 2d games, interactive books, demos and other graphical applications. It is based on cocos2d-iphone, but instead of using Objective-C, it uses C++. It works on iOS, Android, Windows Phone, macOS, Windows and Linux

Crafty

JavaScript game library that can help you create games in a structured way

CutJavaScript

Lightweight and fast 2D HTML5 rendering engine for cross-platform game development

Dash

Free and open 3D game engine written in D

Duality

2D Game Development Framework

Library to make working with the Canvas element easier

EntityJavaScript

HTML5 JavaScript game engine utlizing the entity-component design

Evennia MUD/MU* Creation System

Library for creating online multiplayer text games (MUD, MUSH, MUX, MUCK, MOO etc) in pure Python

Flare

Free/Libre Action Roleplaying Engine

Flashpunk

Free ActionScript 3 library designed for developing 2D Flash games

Flixel

Game-making library written entirely in ActionScript 3

GameJavaScript

GameJs is a JavaScript library for writing 2D games or other interactive graphic applications for the HTML Canvas inspired by PyGame

GamePlay

Cross-platform, C++ game framework/engine for creating 2D/3D mobile and desktop games

GemRB

Cross-platform implementation of Bioware's Infinity Engine

GenesisEngine

GenesisEngine allows you to create and explore procedurally-generated planetary systems, from ground level all the way out into space. Experiments with procedurally-generated worlds, XNA, and design patterns

Gladiator 3D

Canvas based JavaScript ray casting engine for pseudo 3D games

Godot

Fully featured, MIT licensed, game engine. It focuses on having great tools, and a visual oriented workflow that can export to PC, Mobile and Web platforms with no hassle. The editor, language and APIs are feature rich, yet simple to learn, allowing you to become productive in a matter of hours

HaxeFlixel

Free, cross-platform 2D game engine powered by Haxe and OpenFL

JiGS

Online RPG and Trading Game Engine built in PHP

JMonkeyEngine

Cutting edge, cross-platform 3D game engine for adventurous Java developers

Kiwi.js

Blazingly fast mobile & desktop browser based HTML5 game framework. It uses CocoonJavaScript for publishing to the AppStore

LibGDX

Desktop/Android/HTML5/iOS Java game development framework

LibRocket

C++ user interface package based on the HTML and CSS standards. It is designed as a complete solution for any project's interface needs

LibSDL2pp

C++11 bindings for

Free HTML5 + native OpenGL Game Engine for Embedded, Console, Mobile, Server and Desktop

Matter.js

Matter.js is a JavaScript 2D rigid body physics engine for the web

HTML5 game framework for 2D games

MonoGame

XNA Implementation for Mono based platforms (supports iOS, Android, Linux, and started work on PS Suite and NaCli )

Oimo.js

Lightweight 3d physics engine for JavaScript

OpenRTS

Real-Time Strategy game 3D engine coded in java 7

osu-framework

A game framework written with osu! in mind

Oxygine

C++ engine and framework for 2D games on iOS, Android, Windows, Linux and Mac

panda.js

Free HTML5 game engine for mobile and desktop with Canvas and WebGL rendering

Phaser

Phaser is a fun, free and fast 2D game framework for making HTML5 games for desktop and mobile web browsers, supporting Canvas and WebGL rendering

Modular, extendable, and easy-to-use physics engine for JavaScript

pixi.js

Super fast HTML 5 2D rendering engine that uses webGL with canvas fallback

Plasma

Cyan Worlds's Plasma game engine

PlayCanvas

3D WebGL game engine with online toolset

QICI Engine

Free JavaScript game engine library with a web-based comprehensive suite of toolset for making HTML5 games

Quasi-Engine

QtQuick framework that intends to be a complete toolset to ease 2d game development

Ren'py

A Visual Novel Engine, written in python, for both mobile (iOS beta) and desktop platforms

SFML

Simple and Fast Multimedia Library

Solarus

An Action-RPG game engine written in C++

Spring

Real Time Strategy game engine

Starling

ActionScript 3 library that mimics the conventional Flash display tree architecture, can be deployed to mobile devices (iOS, Android), the desktop (Windows, macOS), and to the browser (via the Flash plugin)

TypeScript & ThreeJavaScript powered game engine and framework (2D & 3D with WebGL)

Tesseract

Make mapping more fun by using modern dynamic rendering techniques, sothat you can get instant feedback on lighting changes, not just geometry

Three.js

JavaScript 3D library used in many browser games

Tiled

Tiled is a general purpose tile map editor. It is meant to be used for editing maps of any tile-based game, be it an RPG, a platformer or a Breakout clone

Torque 2D

MIT Licensed version of Torque 2D from GarageGames

Torque 3D

MIT Licensed version of Torque 3D from GarageGames

Turbulenz Engine

HTML5 game engine and server-side APIs available in JavaScript and TypeScript for building and distributing 2D and 3D games

Urho3D

Urho3D is a free lightweight, cross-platform 2D and 3D game engine implemented in C++ and released under the MIT license. Greatly inspired by OGRE and Horde3D

Wurfel Engine

An isometric game engine for games with an open world made of blocks or voxels

XLE

Rendering engine with advanced features such as Image Based Lighting, dynamic area lights, and a node based material editor. Flexible and modular, it is designed to drop into existing solutions. XLE is the "hackable" engine, intended to be customised for specialised requirements

Bfxr

Flash + AIR sound effects generator. Based on Sfxr

Brood War API

C++ framework to interact with the Real Time Strategy (RTS) game Starcraft: Broodwar

FlxCollisions

Simple set of 2d physics + collision demos for flixel v2.0

Gamertag

Gem for retrieving Xbox Live Gamertag information from various sources

Greenworks

A Node.js addon allowing you to integrate HTML5 game with Steamworks

Halo::Reach::API

Ruby gem for interacting with the Halo:Reach API

IodineGBA

GameBoy Advance emulator written entirely in JavaScript and powered by HTML5

Itch

An electron cross-platform game downloader, installer, and library manager for itch.io written in TypeScript

JavaScript Breakouts

Collection of JavaScript engine implementations of Breakout

Leaderboard(Java)

Leaderboards backed by Redis(in Java)

Leaderboard(PHP)

Leaderboards backed by Redis(in PHP)

Leaderboard(Python)

Leaderboards backed by Redis(in Python)

Leaderboard(Ruby)

Leaderboards backed by Redis(in Ruby)

Leaderboard(Scala)

Leaderboards backed by Redis (in Scala)

libfreenect

Drivers and libraries for the Xbox Kinect device on WIndows, Linux, and macOS

OpenEmu

Project to bring game emulation to macOS as a first class citizen

Mudlet

A cross-platform, open source, and super fast MUD (text-only MMORPGs) client with scripting in Lua

Stats.js

JavaScript performance monitor

Tassadar

Starcraft 2 replay parser written in pure Ruby

Various World of Warcraft addons written in Lua

World of Warcraft API Docs

Public documentation for the RESTful web service provided as part of the World of Warcraft community site