Open Source Games
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Browse free open source Games and projects below. Use the toggles on the left to filter open source Games by OS, license, language, programming language, and project status.
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Stellarium
A planetarium software that shows a 3D simulation of the night sky
Stellarium renders 3D photo-realistic skies in real time with OpenGL. It displays stars, constellations, planets, nebulae and others things like ground, landscape, atmosphere, etc.">
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Battle for Wesnoth
A strategy game with a high fantasy theme
The Battle for Wesnoth is a Free, turn-based tactical strategy game with a high fantasy theme, featuring both single-player, and online/hotseat multiplayer combat. Fight a desperate battle to reclaim the throne of Wesnoth, or take hand in any number of other adventures. -
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simutrans
A free transportation simulator game
Simutrans is a cross-platform simulation game where players try to successfully manage transportation systems between places by land, air, and water for passengers, mail, and goods. Planes, ships, trains, trams, trucks, buses, or monorails are at your disposal, but factories operate based on contracts and passengers can only travel to their set destinations. -
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USBLoaderGX
Game backup loader for Wii and vWii
USBLoaderGX is a GUI for Waninkoko's USB Loader, based on libwiigui. It allows listing and launching Wii games, Gamecube games and homebrew on Wii and WiiU vWii mode. Its interface, based on the official theme from Nintendo Wii, is easy to use and perfect for kids and all the family. ATTTENTION, THIS PROJECT IS NOT MAINTAINED HERE ANYMORE. USBLoaderGX last version on sourceforge is 1272 (last stable 1271). Any bug reports or requests posted here will be ignored. This project has been copied to github, and any developers can now update and release new versions. Newer versions are available, maintained by other developers. If you need help, want to ask any questions or want to download newer versions (1280+), then you can find a project's branch maintained by Blackb0x here: https://gbatemp.net https://gbatemp.net/posts/8856063 https://github.com/wiidev/usbloadergx Thank you for your support all these years. Cyan -
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FreeCol
Colonize the New World.
FreeCol is a turn-based strategy game based on the old game Colonization, and similar to Civilization. The objective of the game is to create an independent nation. You start with only a few colonists defying the stormy seas in their search for new land. Will you guide them on the Colonization of a New World? The last stable version release can be found here: https://sourceforge.net/projects/freecol/files/latest/download The latest test pre-release of the next version can be found here: https://github.com/FreeCol/freecol/releases If you want to contribute to Freecol please visit our welcome information thread to see how here: https://sourceforge.net/p/freecol/discussion/719661/thread/2d0063a3bc/ -
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Denise
C64/Amiga emulator with shader and runAhead
Denise is a cycle accurate and platform independant C64 / Amiga 500/1000 emulator. My motivation for this project is understanding how it works and write clean and easy readable code. RetroArch SLANG shaders are supported by Denise. Features already known from the C64 emulation, such as runAhead, savestates, drive sounds, PAL encoding, dynamic rate control, G-Sync/FreeSync, Warp, just in time polling are also available for the Amiga. Denise supports SuperCPU, Final Chesscard, REU, GeoRam, EasyFlash, EasyFlash³, Gmod2, Retro Replay, Action Replay, Final Cartridge, Light Guns/Pens, GunStick, Mouse 1351, Mouse Neos, Paddles, fast loaders such as ProfDOS, PrologicDOS, DolphinDOS, ProSpeed 1571, Turbo Trans, 1571, 1581, drag'n'drop and command line support. GIT repo: https://bitbucket.org/piciji/denise/src/master">
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"Tux, of Math Command" is a math drill game starring Tux, the Linux Penguin. Lessons are included from simple number typing through addition, subtraction, multiplication, and division of positive and negative numbers. It is intended for kids ~4-10.
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0 A.D.
0 A.D. is a free, open-source, cross-platform real-time strategy game.
0 A.D. (pronounced "zero ey-dee") is a cross-platform real-time strategy (RTS) game of ancient warfare. It's a historically-based war/economy game that allows players to relive or rewrite the history of ancient civilizations, each depicted at their peak of economic growth and military prowess. -
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Mumble
Low-latency, high quality voice chat for gamers
Mumble is an open source, low-latency, high quality voice chat software primarily intended for use while gaming. It includes game linking, so voice from other players comes from the direction of their characters, and has echo cancellation so the sound from your loudspeakers won't be audible to other players. -
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GEDKeeper
GEDKeeper - opensource and crossplatform genealogy management program
GEDKeeper program is developed for work with personal genealogical database. The program is designed for extremely simple and intuitive interface. The program is very easy to install on the computer, fully supports the GEDCOM format, has no restrictions on the number of persons and generations, allows you to generate pedigrees, building several tree species, as well as print and save their images, provides fast navigation, filtering, searching and adding multimedia materials. In addition there is an output of geographic data on Google maps (© Google). The aim of the program is as quick and effective means of conducting personal genealogical database. We invite native speakers to improve the translation of the program on the Crowdin platform: https://crowdin.com/project/gedkeeper Project is published on GitHub, url: https://github.com/Serg-Norseman/GEDKeeper">
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AntiMicroX
Program used to map keyboard buttons and mouse controls to a gamepads
AntiMicroX is a graphical program used to map keyboard keys and mouse controls to a gamepad. This program is useful for playing PC games using a gamepad that do not have any form of built-in gamepad support. However, you can use this program to control any desktop application with a gamepad; on Linux, this means that your system has to be running an X environment in order to run this program. It allows mapping of gamepads/joystick buttons to: - keyboard buttons - mouse buttons and moves - scripts and apps - macros consisting of elements mentioned above This application is continuation of project called AntiMicro. Project site: https://github.com/AntiMicroX/antimicrox -
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Hyne
Final Fantasy VIII Save Editor
Hyne is a save game editor for Final Fantasy VIII. This is the most powerful save game editor for Final Fantasy VIII! -
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Celestia
Real-time 3D visualization of space
Celestia is an application for real-time 3D visualization of space, with a detailed model of the solar system, over 100,000 stars, more than 10,000 galaxies, and an extension mechanism for adding more objects. -
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UltraStar Deluxe
A free sing-along karaoke game for your PC
Karaoke sing-along game for PC which is similar to Playstation® Singstar™. It allows up to six players to sing along with music using microphones in order to score points, depending on the pitch of the voice and the rhythm of singing. -
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PCSX2
PlayStation 2 emulator for Windows and Linux
PCSX2 is a PlayStation 2 emulator for Windows and Linux, started by the same team that brought you PCSX (a Sony PlayStation 1 emulator). Currently, it can emulate thousands of games at full speed -
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VASSAL is a game engine for creating electronic versions of traditional board and card games. It provides support for game piece rendering and interaction, and supports play by email or over a live connection.
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AutoREALM
Vector based drawing software designed for RPGs
AutoREALM is a free role-playing game mapping program originally made by Andrew Gryc. This program is an excellent mapping program that can design castles, caves, cities, dungeons and more. New developers are more than welcome! Previously, development were using Delphi language. Some attempts to rewrite it in other languages were done, but currently (since January 2012) there is an attempt or rewrite using those technologies: _ C++11 _ wxWidgets 2.9 (will be 3.0 when it will be released) _ openGL _ pluma framework (a fixed version located on bitbucket) The design of the actual C++ code-base primarily targets clean source code and high modularity of source code, to allow easy reuse of the code and fast learning for people who might join the effort. Current development is located on https://bitbucket.org/bmorel/autorealm . Howerver, older repositories are still here in case someone would like to consult them, and to allow easy access to algorithms they might contain. -
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Fishstrap
Fishstrap is a Bloxstrap Fork.
Fishstrap is an open-source, feature-packed fork of Bloxstrap, designed to enhance your Roblox launcher experience. It offers a faster, more reliable, and customizable way to launch Roblox, built with Windows PC users in mind. Fishstrap supports all Roblox versions and includes advanced features like multi-instance launching, customizable menus, FastFlags tuning, and in-depth logging. Unlike other launchers, Fishstrap provides unmatched performance, stability, and customization options. Whether you’re a developer, casual player, or content creator, Fishstrap enhances your gameplay with seamless multi-account support, detailed player activity tracking, and more. With regular updates and an active community, Fishstrap is always evolving to stay ahead of the curve. It's completely open-source for full transparency and user-driven development. Official website: https://fishstrap.org/ -
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Angry Birds Open-Level Editor
Create your own Angry Birds levels with Open-Level Editor!
Create, edit and share your own levels with Angry Birds Open-Level Editor! Select any items and characters as you want and add it to your level screen. Then export it to a file and play it in the game or share it to your friends! This software is... free, easy and offline! -
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OpenTTD is an open source clone of the Microprose game "Transport Tycoon Deluxe". For more recent versions visit our website: http://www.openttd.org
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A arcade game. You drive a toy wood engine in many levels. You must collect all the coaches. This game looks like the game snake.
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Pioneers
Pioneers - The Settlers of Catan
Pioneers is an emulation of the board game The Settlers of Catan, which can be played over the internet. -
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Neko Project II for Android
PC-98 emulator for Android phones
This project is based on sources, published by someone with nickname sawada, who used code of Neko Project II. Help and suggestions are welcome. -
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Sharp MZ-800 Emulator
Emulator of the 8-bit computers Sharp MZ-800 / MZ-700 / MZ-1500
Open-source emulator of 8-bit personal computers Sharp MZ-800, MZ-700 and MZ-1500. Developed for Linux and Windows using SDL3 (video/audio) and ImGui (GUI). Accurately emulates core hardware: CPU Z80, GDG (WHID 65040-032), CTC i8253, PIO Z80, PIO 8255, PSG SN76489AN - with precise internal signal timing. Supports peripherals: CMT (MZF/MZT/TAP/WAV), FDC WD279x, Quick Disk, ramdisks (MR1R18, Pezik variants), memory extensions, Unicard and IDE8. Integrated Z80 debugger with inline assembler, memory browser and breakpoints. Snapshot system for saving/loading complete emulator state (.mzs archives). Virtual keyboard, autotype, joystick support, variable speed control. GUI localized into 10 languages. Alternative ROM sets (JSS, WILLY) included. Software and games repository: MZF files: https://original.sharpmz.org/ DSK images: http://mz-800.com/ -
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Xconq is an engine for turn-based strategy games. Variety of game genres run under Xconq: historical, sci-fi, fantasy, and modern. AIs. Network games. Multiple UIs and platforms. Easy-to-learn game design language. Large games library available