Simulation Games for Windows

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Browse free open source Simulation Games and projects for Windows 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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  • 1
    Stellarium

    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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    Downloads: 2,993 This Week
    Last Update:
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  • 2
    simutrans

    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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    Downloads: 3,087 This Week
    Last Update:
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  • 3
    Rigs of Rods 0.4+

    Rigs of Rods 0.4+

    Soft-body physics simulator

    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/
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    Downloads: 2,242 This Week
    Last Update:
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  • 4
    Speed Dreams : an Open Motorsport Sim
    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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    Downloads: 315 This Week
    Last Update:
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  • 5
    SmartPropoPlus
    SmartPropoPlus - Turning your R/C transmitter into a Flight Simulator Joystick
    Leader badge
    Downloads: 316 This Week
    Last Update:
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  • 6
    The Powder Toy

    The Powder Toy

    Sandbox video game with a powerful physics engine

    Have you ever wanted to blow something up? Or maybe you always dreamt of operating an atomic power plant? Do you have a will to develop your own CPU? The Powder Toy lets you to do all of these, and even more! The Powder Toy is a free physics sandbox game, which simulates air pressure and velocity, heat, gravity and a countless number of interactions between different substances! The game provides you with various building materials, liquids, gases and electronic components which can be used to construct complex machines, guns, bombs, realistic terrains and almost anything else. You can then mine them and watch cool explosions, add intricate wirings, play with little stickmen or operate your machine. You can browse and play thousands of different saves made by the community or upload your own
    Downloads: 53 This Week
    Last Update:
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  • 7
    ModAssistant

    ModAssistant

    Simple Beat Saber Mod Installer

    ModAssistant is a simple PC mod installer for Beat Saber, using mods from BeatMods. Beat Saber is the popular VR rhythm game where players must slash the beats as they fly towards them to the beat of lively music. ModAssistant comes with a number of great features like dependency resolution, mod uninstallation, and a complex theming engine. It features light, dark, BSMG and light pink themes, and can even have your own custom theme! Have more fun playing Beat Saber by customizing your experience with ModAssistant!
    Downloads: 45 This Week
    Last Update:
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  • 8
    AirSim

    AirSim

    A simulator for drones, cars and more, built on Unreal Engine

    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.
    Downloads: 40 This Week
    Last Update:
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  • 9
    SimPE is a Tool for editing nearly all aspects of Sims 2, starting from simple Character changes (Skills, Names,Relationships...) up to the creation of new Objects and Color Options, containing Wrappers and Editor for nearly all Sims 2 Filetypes.
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    Downloads: 233 This Week
    Last Update:
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  • 10
    VDrift
    A free racing simulator with excellent physics and graphics.
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    Downloads: 198 This Week
    Last Update:
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  • 11
    "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
    Leader badge
    Downloads: 212 This Week
    Last Update:
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  • 12
    Rigs of Rods

    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.
    Downloads: 102 This Week
    Last Update:
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  • 13
    Stunt Rally

    Stunt Rally

    3D racing game with Sci-Fi elements and Track Editor

    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/
    Leader badge
    Downloads: 116 This Week
    Last Update:
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  • 14
    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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    Downloads: 94 This Week
    Last Update:
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  • 15
    Sims3 Tools

    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.
    Leader badge
    Downloads: 536 This Week
    Last Update:
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  • 16
    StepMania
    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.
    Leader badge
    Downloads: 107 This Week
    Last Update:
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  • 17
    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.
    Downloads: 86 This Week
    Last Update:
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  • 18
    TORCS - The Open Racing Car Simulator
    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.
    Leader badge
    Downloads: 417 This Week
    Last Update:
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  • 19
    Ur-Quan Masters HD

    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.
    Downloads: 85 This Week
    Last Update:
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  • 20
    To develop historical space vehicles and rockets using the freeware orbiter sim program.
    Downloads: 80 This Week
    Last Update:
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  • 21
    America's Army 2.5 Assist

    America's Army 2.5 Assist

    Classic America's Army

    A GUI client application for Downloading Installing and Playing Americas Army 2.5 on Windows, Mac and Linux with a new custom authorization system. On the server side a Desktop server manager for Windows, Mac and Linux and a Command line dedicated server manager for Windows and Linux. Backend server components include a replacement authorization system using the Battletracker account & stats database and a PunkBuster log streaming server which records players possible cheating activities.
    Leader badge
    Downloads: 70 This Week
    Last Update:
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  • 22
    FTLEditor

    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.
    Downloads: 89 This Week
    Last Update:
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  • 23
    OpenTTD

    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!
    Downloads: 11 This Week
    Last Update:
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  • 24
    Danger from the Deep

    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.
    Downloads: 61 This Week
    Last Update:
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  • 25
    ATC-pie

    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...
    Leader badge
    Downloads: 79 This Week
    Last Update:
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