Browse free open source Games and projects for Windows 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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  • 1
    Godot Engine

    Godot Engine

    Godot is a powerful cross-platform game engine

    Godot was created to provide a fully free, open source game development environment. To compile from source see the official docs here https://docs.godotengine.org/en/latest/development/compiling/
    Downloads: 5,609 This Week
    Last Update:
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  • 2
    DOSBox

    DOSBox

    An Open Source DOS emulator to run old DOS games

    DOSBox emulates a full x86 pc with sound and DOS. Its main use is to run old DOS games on platforms which don't have DOS (Windows 7, 8, 8.1 and 10 / Linux / FreeBSD / Mac OS X)
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    Downloads: 14,142 This Week
    Last Update:
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  • 3
    antimicro

    antimicro

    Graphical program to map keyboard and mouse controls to a gamepad

    antimicro is a graphical program used to map keyboard keys and mouse controls to a gamepad. It's useful for using a gamepad on PC games that do not have any form of built-in gamepad support. This program can also be used 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. This program currently works with various Linux distributions, Windows (Vista and later), and FreeBSD, but with limited support for FreeBSD and Windows XP.
    Downloads: 2,511 This Week
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  • 4
    Open Aimbot

    Open Aimbot

    Universal Aim Assist Framework

    Open Aimbot is a universal open source framework. It offers a wide selection of extensive functionality. We develop various utilities for Roblox, security systems, protection and scripts for specific games, and general scenarios.
    Downloads: 2,480 This Week
    Last Update:
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  • 5
    Extreme Injector

    Extreme Injector

    DLL injector for gaming and other uses

    Extreme Injector is a software tool commonly used to inject Dynamic Link Libraries (DLLs) into other processes running on a Windows system. Often used in gaming and software development, this tool allows users to modify or add custom functionality to a target application by "injecting" DLL files, which can influence the application's behavior or provide additional features. Extreme Injector is popular in the gaming community for enabling modifications or "mods" in games, but it also has potential misuse in game cheating and malware deployment, as it allows for altering applications in ways the original developers may not have intended.
    Downloads: 1,949 This Week
    Last Update:
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  • 6
    Sunshine

    Sunshine

    Self-hosted game stream host for Moonlight

    Sunshine is an open-source self‑hosted cloud gaming server that implements NVIDIA’s GameStream protocol. Compatible with Moonlight clients across platforms, it supports low‑latency streaming via software or hardware encoding (AMD/Intel/NVIDIA) and offers a browser‑based control UI for pairing.
    Downloads: 1,326 This Week
    Last Update:
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  • 7
    vJoy
    This project was originally designed to provide an open-source replacement for PPJoy. The product, at this point, consists of virtual joystick devices that is seen by the system as a standard joystick but its position-data is written to it by a feeder application. An existing feeder application that takes advantage of this product is SmartPropoPlus. If you are an application writer you can very easily write an application that controls a joystick (e.g. mouse-to-joystick, keyboard-to-joystick). If you are a beginner in device drivers you can take this code and enhance it to support more (or less) axes, buttons or POVs.
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    Downloads: 9,440 This Week
    Last Update:
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  • 8
    Roblox FPS Unlocker

    Roblox FPS Unlocker

    FPS Unlocker for Roblox

    FPS Unlocker for Roblox. Download the latest release, extract rbxfpsunlocker-x64.zip into a folder, run the exe before or after starting Roblox, and enjoy the beautiful frames available. All detections are false positives. Internally, RFU "tampers" with running Roblox processes in order to uncap framerate and can appear as suspicious to an anti-virus. For reasons unbeknownst to me, 32-bit builds of RFU garner many more false positive detections than 64-bit builds and are no longer included in new releases. If you don't trust me, feel free to download the repository, review the source code, and compile the project yourself with Visual Studio 2019. Otherwise, add an exception to your anti-virus for rbxfpsunlocker.exe (or the folder it is in).
    Downloads: 1,196 This Week
    Last Update:
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  • 9
    DS4Windows

    DS4Windows

    DS4Windows allows you to use a DualShock 4 Controller on your PC

    DS4Windows by Ryochan7 is an open-source program that will allow someone to get the experience of using a Playstation 4 DualShock Controller on a PC by emulating a Xbox 360 Controller.
    Downloads: 1,184 This Week
    Last Update:
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  • 10
    Pokémon: Evolved

    Pokémon: Evolved

    All of the original 151 pokemon now have longer evolutions lines

    Pokemon: Evolved is a ROM hack of Pokémon LeafGreen that significantly expands the original gameplay by redesigning evolution mechanics and extending the Pokédex. The project modifies all original Generation I Pokémon to include additional evolution stages, increasing the total number of obtainable creatures and creating a more complex progression system. It introduces custom sprites, new Pokédex entries, and shiny variants for the added evolutions, enhancing both visual and gameplay variety. Core mechanics such as stats, movesets, and evolution levels have been rebalanced to provide a more challenging and engaging experience. The hack also ensures that all Pokémon can be obtained within a single playthrough by adjusting encounter rates and availability across routes. Additional quality-of-life changes, such as infinite rare candies and simplified evolution requirements, streamline progression while maintaining difficulty.
    Downloads: 1,142 This Week
    Last Update:
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  • 11
    MCA Selector

    MCA Selector

    A tool to select chunks from Minecraft worlds for deletion or export

    An external tool to export or delete selected chunks and regions from a world save of Minecraft Java Edition.
    Downloads: 1,139 This Week
    Last Update:
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  • 12
    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: 4,480 This Week
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  • 13
    Whisky

    Whisky

    A modern Wine wrapper for macOS built with SwiftUI

    Experience the latest titles effortlessly with Whisky. Whisky provides a clean and easy to use graphical wrapper for Wine built in native SwiftUI. You can make and manage bottles, install and run Windows apps and games, and unlock the full potential of your Mac with no technical knowledge required. Whisky is built on top of CrossOver 22.1.1, and Apple's own Game Porting Toolkit.
    Downloads: 839 This Week
    Last Update:
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  • 14
    BZFlag - Multiplayer 3D Tank Game
    OpenSource OpenGL Multiplayer Multiplatform Battle Zone capture the Flag. 3D first person tank game. Download the latest version at https://www.bzflag.org/downloads/ Development has moved to Github: https://github.com/BZFlag-Dev/bzflag (The SourceForge binary releases for Windows and macOS are very outdated. Please download the latest version from our website.)
    Leader badge
    Downloads: 3,759 This Week
    Last Update:
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  • 15
    Delta Executor For PC

    Delta Executor For PC

    Use the Delta Executor APK with Roblox on a Windows PC.

    This project allows the Delta Executor APK to be compatible with Roblox running natively on a Windows PC. Delta Executor For PC emulates the necessary environment to run the APK and integrates it with the Roblox process running on your Windows machine. If the Delta Executor APK is not found, the project will automatically download it. The "DeltaExecutorVector.svg" file is just the logo in vector format. How to run 1. It's good practice to always first read the source code. 2. Click the download button above. 3. Unzip and run the executable as administrator, choose a location, and click install. 4. Locate the application, and run it. 5. If you would prefer to use your own APK, place it in the same folder as the application. This APK will be used instead of downloading a new one. How to build 1. Download and install Rust (https://www.rust-lang.org/tools/install). 2. Download the source code. 3. In the project directory run "cargo run --release".
    Leader badge
    Downloads: 20,099 This Week
    Last Update:
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  • 16
    DsHidMini

    DsHidMini

    Virtual HID Mini-user-mode-driver for Sony DualShock 3 Controllers

    DsHidMini is an open-source Windows driver project designed to modernize support for Sony DualShock 3 controllers on Windows 10 and 11 systems. The software replaces outdated or incompatible drivers by exposing the controller as configurable HID devices compatible with DirectInput, Raw Input, HID APIs, and optional XInput emulation for modern games. It supports both wired USB and Bluetooth connectivity through integration with the companion BthPS3 stack, enabling low-latency wireless gameplay and automatic pairing workflows. The project includes multiple emulation modes, such as native DualShock 3 behavior, DualShock 4 emulation for DS4Windows compatibility, and Xbox-style XInput support for broader game compatibility. DsHidMini also offers customization features for LEDs, rumble, dead zones, battery indication, and controller behavior through a dedicated configuration utility.
    Downloads: 746 This Week
    Last Update:
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  • 17
    Bloxstrap

    Bloxstrap

    An alternative bootstrapper for Roblox with a bunch of extra features

    Bloxstrap is a third-party replacement for the standard Roblox bootstrapper, providing additional useful features and improvements. Bloxstrap is a community-made utility for Roblox that allows players to customize and enhance their gameplay experience. It functions similarly to Roblox’s official launcher but provides additional features and settings that are not available through the default launcher. Bloxstrap offers options like the ability to skip the Roblox loading screen, customize graphics settings more extensively, and even maintain previous versions of the client. It’s particularly popular among users who want more control over their Roblox experience or who need to troubleshoot specific game performance issues. The tool is easy to install and integrates seamlessly with Roblox for a smoother and more personalized user experience.
    Downloads: 707 This Week
    Last Update:
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  • 18
    Battle for Wesnoth

    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.
    Leader badge
    Downloads: 2,908 This Week
    Last Update:
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  • 19
    XOutput

    XOutput

    DirectInput to XInput wrapper

    If you have an older or not supported game controller (gamepad, wheel, joystick, etc.), but XBox 360 controllers are supported you can use this software and enjoy gaming with your controller. XOutput is a software that can convert DirectInput into XInput. DirectInput data is read and sent to a virtual XInput (Xbox 360 Controller) device. XInput is the new standard game controller input on windows, and DirectInput can no longer be used with Universal Windows Platform software, but with this tool you can use DirectInput devices as well.
    Leader badge
    Downloads: 4,510 This Week
    Last Update:
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  • 20
    Amulet Map Editor

    Amulet Map Editor

    A new Minecraft world editor and converter

    The new age Minecraft world editor and converter that supports every version since Java 1.12 and Bedrock 1.7. Amulet is a Minecraft world editor built from the ground up with the lessons learnt from previous editors in mind. The program works natively with the block state format introduced in 1.13 which enables editing of all world formats. Amulet is built on top of a world converter that converts all world data into a custom superset format. This means that all worlds can be modified in the same way rather than having custom logic for each world format. Amulet comes with a built-in world converter that can be used to convert any world Amulet can open into any other world Amulet can open.
    Downloads: 618 This Week
    Last Update:
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  • 21
    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: 8,902 This Week
    Last Update:
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  • 22
    Arianne RPG

    Arianne RPG

    Arianne is an engine to develop multiplayer online games like Stendhal

    Arianne is a multiplayer online engine to develop turn based and real time games, providing a simple way of creating the game server rules and clients like our MORPG Stendhal. Our engine Marauroa uses Java and SQL for hosting hundreds of players on a solo host. Stendhal is a fun friendly and free multiplayer online adventure game with a huge and rich world. With hundreds of NPCs and different quests, features like the Travel log and achievement system keep track of progress. Thousands of creatures are ready to fight, above and below ground, and as players level up they can compare themselves on a detailed stats website. The engine Marauroa provides a simple way of creating games on a portable and robust server architecture. Marauroa manages the client server communication and provides an object orientated view of the world for game developers. It handles database access in a transparent way to store player accounts, character progress and the state of the world
    Leader badge
    Downloads: 2,765 This Week
    Last Update:
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  • 23
    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: 2,261 This Week
    Last Update:
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  • 24
    Universal Pokemon Randomizer ZX

    Universal Pokemon Randomizer ZX

    Public repository of source code for the Universal Pokemon Randomizer

    Universal Pokemon Randomizer ZX is an open-source tool that allows players to modify and randomize various aspects of Pokémon games across multiple generations, creating unique and unpredictable gameplay experiences. It supports a wide range of ROMs and provides a user-friendly interface for customizing game elements such as Pokémon encounters, abilities, stats, movesets, and item distributions. The tool is designed to maintain game stability while introducing variability, ensuring that randomized versions remain playable and balanced. It also includes advanced options that allow users to control the level of randomness, from subtle changes to complete overhauls of game mechanics. By enabling customization, the project extends the replay value of classic Pokémon titles and encourages experimentation with different strategies. It is widely used by the community for challenge runs, content creation, and personalized gameplay experiences.
    Downloads: 523 This Week
    Last Update:
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  • 25
    LucasChessR

    LucasChessR

    GUI of chess

    Lucas Chess (R) is a free, open-source chess program designed primarily for training and improving chess skills. It acts as a comprehensive learning platform, offering tools for beginners and advanced players alike. The software includes a wide range of exercises covering openings, tactics, endgames, and visualization techniques. Users can play against multiple chess engines with adjustable difficulty levels that simulate different strengths. It also provides detailed game analysis, helping players understand mistakes and improve decision-making. Overall, Lucas Chess (R) combines gameplay, training, and analysis into a single powerful chess improvement suite.
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    Downloads: 2,716 This Week
    Last Update:
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