Open Source Simulation Games
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Simulation Games
Browse free open source Simulation Games and projects for Windows and BSD below. Use the toggles on the left to filter open source Simulation 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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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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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.
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A free racing simulator with excellent physics and graphics.
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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
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Rigs of Rods
A 3D simulator game where you can drive, fly, and sail
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. -
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Sims3 Tools
Tools using the s3pi library and other related works
sims3tools provides a set of tools for the Sims3 modder, based around the s3pi library. It includes: a package editor (s3pe), which allows most useful resources to be edited; an Object / CAS Part cloner (s3oc) for creating a base for modifications; a sims3pack packer/unpacker (s3su), which simplifies handling the content of these files; a string table editor (s3se) for allowing string table resources to be efficiently edited; plus a number of additional utilities. Note that development on sims3tools has now finished. -
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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.
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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.
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Ur-Quan Masters HD
Ur-Quan Masters High Definition
Ur-Quan Masters HD Mod. An HD remake of Star Control 2. It's the full Ur-Quan Masters game but also featuring a high resolution mode, new features, & new artwork. -
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"Roberge's Used Robot (RUR) : a Python Learning Environment" is a Python implementation of a "robot environment" as introduced by R. Pattis in 1981. **It is obsolete.** See https://github.com/aroberge/rur-ple
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OpenTTD
Open source simulation game based on Transport Tycoon Deluxe
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! -
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FTLEditor
A tool to edit profile and saved game files for FasterThanLight.
A 3rd-party tool to edit user files for the game FasterThanLight. With this, you can unlock any or all ships and achievements in your user profile, or tweak most aspects of saved games: crew, systems, weapons, fires, breaches, etc. -
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Sims 3 Package Interface
Sims 3 (and other) game package library
"Sims 3 Package Interface" provides a core library of portable code that "understands" Sims3 game packages. Note that (with some minor tweaks) the core library code also understands other game package formats (e.g. SimCity Online, Sims4). Along with the core library are a number of "wrappers" that provide the main part of the project. These handle deserialization and serialization of data within the package (or any other source). Further tools (not supplied here) can use the core library and wrappers to manipulate the data content of package files. Note that development on this library and wrappers provided here has now finished. -
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Danger from the Deep
WW2 U-boat simulation
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. -
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ATC-pie
Air traffic control tower and radar simulator (solo + multi-player)
ATC-pie is an air traffic control simulation program. It features solo, multi-player and teacher-student sessions, rendering 3D views of airports through FlightGear. It is essentially designed for realism, and simulates real-life ATC tasks and equipment such as strip racks and sequence management, handovers to/from neighbouring controllers, flight plans, primary & secondary radars, RDF, CPDLC, ATIS recording... -
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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
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crrcsim
Open source model airplane simulator
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. -
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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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An OpenGL Billard Game based on foobillard 3.0a with patches, new features (hud, jumpshots, correct detection of lost balls, more sound and graphics etc). Optimized for touch. New designed mouse / touch-control. On Facebook: www.facebook.com/Foobillardplus Some Videos: http://www.youtube.com/user/foobillardplus/videos
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Oolite
3D space trading and combat game
Oolite is a free and open source space trading and combat simulation game where you are the pilot of a spacecraft capable of interstellar travel. Inspired by the classic 8-bit game Elite, it features many similar aspects of gameplay. You can travel to different planetary systems, encounter challenges and embark on missions in a quest for wealth and glory. Oolite runs on Mac OS X (10.6 or later), Windows (XP or later), and Linux, and does not require the latest hardware except for certain expansion packs. Powered by Objective-C and OpenGL, it is designed as a small game that users can easily pick up, modify and expand. -
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A free, industrial quality library for simulating articulated rigid body dynamics - for example ground vehicles, legged creatures, and moving objects in VR environments. It's fast, flexible & robust. Built-in collision detection.
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Biogenesis is an artificial life program that simulates the processes involved in the evolution of organisms. It shows colored segment based organisms that mutate and evolve in a 2D environment. Biogenesis is based on Primordial Life.
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dopewars is a drug dealing game based on "Drug Wars" by John E. Dell. Originally set in New York, your aim is to deal in drugs and make your fortune... See the website at https://dopewars.sourceforge.io for more information.
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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.