Free and Open-Source Gaming

Tenes Emapandas Graciela is a clone of 'Plan Táctico y Estratégico de la Guerra', which is a pseudo-clone of Risk, a multiplayer turn-based strategy game. Some rules are different.

Open Realm of Stars is an open source 4X strategy game developed using Java.

Move your fleet in a randomly generated galaxy. Encounter other species, and find new planets to colonize. Explore mysterious space anomalies.

An open source adventure game created with Blender3D based on the open source film 'Sintel'.

The goal of this project was to expand upon the world of Sintel and to develop a platform that enables users to create and share their own content.

Finally, an MMORPG that's all about grinding and doing chores.

• Simple, old school RPG system with gear upgrades, skill points, skill unlocks, set bonuses and more
• Play single-player or multiplayer cooperatively over the Internet or LAN
• Choose from 12 different starting builds with various play styles
• Streamlined Active Time Battle system with up to 8 vs 8 fighters
• 24 minute day/night cycle that affects gameplay
• Unlock 48 different skills and discover 250+ items
• Travel through caves, lava, swamp, ice, and desert to fight 40 different monsters and conquer 16 bosses
• Full keyboard and mouse rebinding support
• Easily switch between fullscreen/windowed mode
• 4K resolution support with optional texture pack
• Free and open-source software licensed under GPLv3

Tux4Kids is an international group of volunteers developing high-quality software for kids, with the goal of combining fun and learning into an irresistable package.

Our software is free: you can download it for use at home or onto hundreds of computers in a school. We support all major platforms, including Windows, Macintosh, and Linux/Unix. Our programs are used by people around the globe, and they have been translated into dozens of different languages. As open-source software, these programs can be freely extended or customized, and they are supported by active communities of volunteer developers.

Whether you’re a parent, a teacher, or a kid, give Tux4Kids software a try!

As the name suggests, the game is inspired by the movie TRON. Or more exactly, by all the games that where inspired by the movie TRON.

You steer a futuristic bike, called lightcycle. Combat takes place in a rectangular arena. Your bike leaves a trail behind, which is like a wall. The goal is to force the other players to drive into a wall. The winner is the last player alive.

C-Dogs SDL is a classic overhead run-and-gun game, supporting up to 4 players in co-op and deathmatch modes. Customize your player, choose from many weapons, and blast, slide and slash your way through over 100 user-created campaigns. Have fun!

Secret Maryo Chronicles is an Open Source two-dimensional platform game with a design similar to classic computer games.

Hello peeps.

Since I noticed no FOSS/Proprietary games like Twisted Metal exists, I want to make a FOSS version.

I don't have a name set, but "Twisted Steel" sound right.

Should I create this?

(I'm considering using Godot as I'm no advanced programmer.)

After a cataclysmic explosion rips through Sol and nearby systems, the Galactic Empire is rapidly decaying. Corruption and piracy run rampant. But in the eye of the storm that is chaos, there is also opportunity.

Seize that opportunity for yourself in this freeform space trading and mercenary game: buy newer and stronger ships, hire pilots to grow your fleet, or help a faction achieve its goals. Get credits to use toward your goal by delivering cargo, hunting bounties, ferrying passengers, or even turning to piracy. The choice is yours. Along the way, you will help decide the future of the galaxy.

Colobot: Gold Edition is a real-time strategy game, where you can program your units (bots) in a language called CBOT, which is similar to C++ and Java. Your mission is to find a new planet to live and survive. Save humanity and get programming skills!

irrlamb is a 3D physics game in which you control a blue ball of energy in an attempt to touch all glowing orbs in the level.

• Framerate independent and deterministic physics system which uses the Open Dynamics Engine
• 35 levels, including 15 tutorials, 7 "campaign" levels, 4 skateparks, 7 challenges, and 2 secrets
• Control remapping and gamepad support
• Highscore tracking
• Replays and validation system
• Free and open-source software licensed under GPLv3

Zatikon is a strategy game, originally developed by Gabe Jones and Chronic Logic, aiming to connect the timeless idea of chess with draft-based army approach, sprinkled with fantastic medieval and magical setting.

XPilot is a multi-player 2D space game. Some features are borrowed from classics like the Atari coin-ups Asteroids and Gravitar, and the home-computer games Thrust (Commodore 64) and Gravity Force (Commodore Amiga).

Game objectives and gameplay are adjustable through a number of options. Examples modes of the game:

• Classical dogfight; equipped with only your gun, you have to rely on your maneuvering and tactical skills
• Team; fight together, steal other teams's treasures (involves flying around with a ball in a string, much like in Thrust) and blow up their targets (which are, no doubt, heavily guarded)
• All out nuclear war; chose carefully between more than twenty weapon and defense systems to stay alive and annihilate your enemies
• Race; make it through the deadly course before your opponents

An OG *nix game from 1995 by Jan Hubicka.

The gameplay and physics are ace, the story is humorous with 99 challenging levels. Jan was also involved in producing Xaos and BB (an ASCII art demo) amongst many other things.

Simutrans is a freeware and open-source transportation simulator. Your goal is to establish a successful transport company. Transport passengers, mail and goods by rail, road, ship, and even air. Interconnect districts, cities, public buildings, industries and tourist attractions by building a transport network you always dreamed of.

Xconq is a general strategy game system. It is a complete system that includes all the components: a portable engine, graphical interfaces for Unix/Linux/X11, Macintosh, and Windows, multiple AIs, networking for multi-player games, and an extensive game library.

In addition to Xconq's "standard" game, which is similar to the classic Empire/Empire Deluxe games of years ago, the game library includes games for ancient civilizations, the Peloponnesian War, the Roman Civil War, Frederician strategy, Napoleonic strategy, Gettysburg at a brigade scale, the Russian revolution, the Normandy invasion, WWII at scales from tactical to grand strategic, Beirut street fighting, voyages of discovery, African exploration, and many others, including space and fantasy games.

Xconq's forte is turn-based strategy with overhead map views. Tiles are hexagonal, and worlds may be very large; the largest in the library is an 800x320 map of the world, a 256,000 hex monster! The game design language GDL is a declarative language where you define the units, terrain, etc, then fill in tables defining their interaction. Literally hundreds of different tables are available to the game designer. For graphics, the Xconq library includes hundreds of unit images and tiles that may be used by a game.

All this makes Xconq especially interesting for games about unusual or lesser-known strategic situations; it is unique in its ability to model the conflicts and strategies of any period in history.

Biniax is open-source puzzle game, originally written for Microsoft Windows and Linux, but later ported to tens of other platforms by different nice people around the World.

The game play is extremely simple - move around your block and clean your way ahead. You can take any pair form the field and gain score by following this simple logic.

Liquid War is a game in which you control an army of liquid in an attempt to assimilate your opponents.

A 2D real-time strategy simulation with an emphasis on economy and city building. Expand your small settlement to a strong and wealthy colony, collect taxes and supply your inhabitants with valuable goods. Increase your power with a well balanced economy and with strategic trade and diplomacy.

Pioneer is a space adventure game set in our galaxy at the turn of the 33rd century.

The game is open-ended, and you are free to eke out whatever kind of space-faring existence you can think of. Explore and trade between millions of star systems. Turn to a life of crime as a pirate, smuggler or bounty hunter. Travel through vast territories of various factions, experience beautiful scenery, be the first to witness foreign stars being eclipsed by alien worlds. The universe is whatever you make of it.

Pioneer is under constant development and has a friendly community of players, modders and developers around it. We’d love for you to try it and make part of the galaxy your own!

NetHack is a single player dungeon exploration game that runs on a wide variety of computer systems, with a variety of graphical and text interfaces all using the same game engine. Unlike many other Dungeons & Dragons-inspired games, the emphasis in NetHack is on discovering the detail of the dungeon and not simply killing everything in sight - in fact, killing everything in sight is a good way to die quickly. Each game presents a different landscape - the random number generator provides an essentially unlimited number of variations of the dungeon and its denizens to be discovered by the player in one of a number of characters: you can pick your race, your role, and your gender.

Bos Wars is a futuristic real time strategy game (RTS). In a RTS game, the player has to combat his enemies while developing his war economy. Everything runs in real-time, as opposed to turn-based games where the player always has to wait for his turn. The trick is to balance the effort put into building his economy and building an army to defend and attack the enemies.

Bos Wars has a dynamic rate based economy. Energy is produced by power plants and magma gets pumped from hot spots. Buildings and mobile units are also built at a continuous rate. Control of larger parts of the map creates the potential to increase your economy throughput. Holding key points like roads and passages allow for different strategies.

It is possible to play against human opponents over LAN, internet, or against the computer. Bos Wars successfully runs under Linux, MS Windows, BSD, and Mac OS X.

Armagetron is a multiplayer game in 3d that attempts to emulate and expand on the lightcycle sequence from the movie Tron. It's an old school arcade game slung into the 21st century. Highlights include a customizable playing arena, HUD, unique graphics, and AI bots. For the more advanced player there are new game modes and a wide variety of physics settings to tweak as well.

OpenRA is an open source game engine reimplementation and remake of several Command & Conquer games, including Red Alert. It is built using OpenGL and SDL, has support for HiDPI, and is cross platform, supporting Windows, Linux, macOS, and FreeBSD. The engine has support for custom mods via an SDK. The games are remade for modern computers with updated gameplay, new campaigns, user-created and curated maps, and online play. Deviations from the originals included a choice between “right click” and classic “left click” control schemes, an overhauled sidebar interfaces for managing productions, support for game replays and an observer interface designed for video game live streaming. Fog of war that obscures the battlefield outside your units’ line of sight, civilian structures that can be captured to provide benefits and units gain experience as they fight and improve when they earn new ranks. The game supports handicapping players, Discord integration and community ladders. Experimental support for the remastered assets was published in 2023 as a binary compatible yet separate mod.

Coinciding with the release of Command & Conquer Remastered Collection in 2020, Electronic Arts released the original source code for both Tiberian Dawn and Red Alert through GitHub under the GNU General Public License in collaboration between EA and the Command & Conquer community to aid in the development of mods. The source release has also allowed community developers to produce source ports of the original PC version of the game which was released as freeware. This now includes unofficial ports to platforms such as the PlayStation Vita derived from an upstream project called Vanilla-Conquer.

via: https://en.wikipedia.org/wiki/Command_%26_Conquer:_Red_Alert#OpenRA