Open Source C++ Simulation Games

Rigs of Rods is a free/libre soft-body physics simulator mainly targeted at simulating vehicle physics. The soft-body physics system is based on mass-spring-damper theory. This is a mirror of the Rigs of Rods GitHub repository: https://github.com/RigsOfRods/rigs-of-rods The old SourceForge project can be found here: https://sourceforge.net/projects/rigsofrods/

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.

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.

2025 UPDATE: we have finally moved to Git! https://forge.a-lec.org/speed-dreams/speed-dreams-code/ This SourceForge project will be kept as a read-only archive and will be eventually removed! Speed Dreams is a Motorsport Simulator featuring high-quality 3D graphics and an accurate physics engine, all targeting maximum realism. Initially forked from TORCS, it has now reached a clearly higher realism level in visual and physics simulation, thanks to its active development team and growing community. It mainly aims to implement exciting new features, cars, tracks and AI opponents to make a more enjoyable game for the player, while constantly pushing forward visual and physics realism. It is also intended for any research, study or teaching activity, around physics and AI, thanks to its GPL V2+ license, and the clear and modular architecture of its C/C++ code base.

SmartPropoPlus - Turning your R/C transmitter into a Flight Simulator Joystick

Rigs of Rods is a 3D simulator game where you can drive, fly and sail various vehicles using an accurate and unique soft-body physics engine. Since 2014, the development continued at https://github.com/RigsOfRods/rigs-of-rods UPDATE: 10/30/2016: removed opencandy installers, replaced with zip files.

AirSim is an open-source, cross platform simulator for drones, cars and more vehicles, built on Unreal Engine with an experimental Unity release in the works. It supports software-in-the-loop simulation with popular flight controllers such as PX4 & ArduPilot and hardware-in-loop with PX4 for physically and visually realistic simulations. It is developed as an Unreal plugin that can simply be dropped into any Unreal environment. AirSim's development is oriented towards the goal of creating a platform for AI research to experiment with deep learning, computer vision and reinforcement learning algorithms for autonomous vehicles. For this purpose, AirSim also exposes APIs to retrieve data and control vehicles in a platform independent way. AirSim is fully enabled for multiple vehicles. This capability allows you to create multiple vehicles easily and use APIs to control them.

Another version of the simple action game modeled after the lightcycle sequence of the movie Tron. We're using SourceForge only for file releases and news these days. Development has moved on to GitLab: https://gitlab.com/armagetronad/armagetronad

A free racing simulator with excellent physics and graphics.

Open source re-implementation of RollerCoaster Tycoon 2. An open-source re-implementation of RollerCoaster Tycoon 2, a construction and management simulation video game that simulates amusement park management. Chat takes place on Discord. You will need to create a Discord account if you don't yet have one. If you want to help make the game, join the developer channel.OpenRCT2 is an open-source re-implementation of RollerCoaster Tycoon 2 (RCT2). The gameplay revolves around building and maintaining an amusement park containing attractions, shops and facilities. The player must try to make a profit and maintain a good park reputation whilst keeping the guests happy. OpenRCT2 allows for both scenario and sandbox play. Scenarios require the player to complete a certain objective in a set time limit whilst sandbox allows the player to build a more flexible park with optionally no restrictions or finance. RollerCoaster Tycoon 2 was originally written by Chris Sawyer in x86 assembly.

ONLY for Releases. Downloads in Files. Homepage: https://cryham.org/stuntrally/ Sources, Issues, etc: https://github.com/stuntrally/stuntrally3/ Documentation: https://github.com/stuntrally/stuntrally3/blob/main/docs/_menu.md Browsers for: Vehicles: https://cryham.org/stuntrally/vehicles/ Tracks: https://cryham.org/stuntrally/tracks/

StepMania is a music/rhythm game. The player presses different buttons in time to the music and to note patterns that scroll across the screen. Features 3D graphics, visualizations, support for gamepads/dance pads, a step recording mode, and more! WE HAVE MOVED TO GITHUB.

A 3D rally simulation with a great physics engine for drifting, over 200 maps, different terrain materials like dirt, asphalt, sand, ice etc. and various weather, light and fog conditions give this rally simulation the edge over many other free games. You need to make it through the maps in often tight time limits and can further improve by beating the recorded high scores. All attached single races must be finished in time in order to win an event, unlocking additional events and cars. Most maps are equipped with spoken co-driver notes and co-driver icons. Many configuration details for display and audio adjustments can be edited in the well documented plain text configuration file. Additional contributed maps and events are ready for download as plugins. Trigger Rally works well with common low performance laptops from about 2008. And if something like snow flakes and vegetation sprites demand to much from your system you can just disable it.

LinCity-NG is a city simulation game. In the game, you are required to build and maintain a city. You can win the game either by building a sustainable economy or by evacuating all citizens with spaceships.

CRRCSim is a model-airplane flight simulation program for Linux with ports to other platforms. Using CRRCSim you can learn how to fly model aircraft, test new aircraft designs, and improve your skills by practicing in the relative safety of your pc.

OpenTTD is an open source transport simulation game based on the popular game Transport Tycoon Deluxe by Chris Sawyer, with several additions. OpenTTD is as close to the original as you can get, but has been extended with plenty of great features. These include bigger maps (up to 64 times bigger than the original), stable multiplayer mode that allows for up to 255 players in 15 companies, in-game downloading of heightmaps, AIs, scenarios, and so much more. With its many additions and improvements players are sure to have a greatly enhanced gaming experience. Try it for yourself!

TORCS, The Open Racing Car Simulator is a highly portable multi platform car racing simulation. It is used as ordinary car racing game, as AI racing game and as research platform. It runs on Linux (x86, AMD64 and PPC), FreeBSD, OpenSolaris and Windows.

SDL/OpenGL based WW2 german submarine 3d simulation, multilanguage support, multiplatform support with advanced sound and graphics. Please visit dangerdeep.sourceforge.net for any news or visit us in #dangerdeep on freenode IRC.

Privateer Gemini Gold is a remake of the classic space simulation adventure Privateer that was part of the Wing Commander games series. It brings back the magic of the Gemini Sector with a modern game engine and high resolution graphics.

CaesarIA is an open source remake of Caesar III game released by Impressions Games in 1998, it aims to expand the possibilities of the classical city-building simulators and to add new features showing the city life. Now the game work with Windows, Linux, Mac, Haiku and Android. The original Caesar3 game is needed to play openCaesar3. We start crowdfunding campaign for renew graphic set at www.igg.me/at/caesaria-game. Help us set new stage in good old Caesar.

OpenCity is another 3D city simulator. You can build residential, commercial and industrial zones then supply them with necessary goods and watch them grow up. Version 0.0.6stable is now available for download. Any feature request/bug report is welcome

Vega Strike is a 3d OpenGL Action Space Sim for Win/Lin/Mac allowing players to trade, bounty hunt, or explore in a vast universe. Active development is now on https://github.com/vegastrike and on http://www.vega-strike.org Vega Strike is mod ready and network playable.

Opensource Created Custom Viewers For Virtual Worlds like SecondLife

This was the official home of Race Into Space, the computer version of the Liftoff! board game by Fritz Bronner. It was developed by Strategic Visions and published by Interplay as a disk-based game in 1993 and a CD-ROM in 1994. This location houses the prior release of the game, v. 1.1 released in 2013. There is now a v.2.0.0, which can be downloaded from https://github.com/raceintospace/raceintospace/releases/tag/v2.0.0. News and updates are available on our Mastodon account at https://mstdn.games/@raceintospace

The Rollercoaster Tycoon 3 Object Importer allows you to produce custom objects for Rollercoaster Tycoon 3 including trees/plants, walls/floors/roofs, fences, lamps, stalls, special attractions, litter bins, benches, path extras and general scenery.