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
    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: 20,972 This Week
    Last Update:
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  • 2
    Blooket Cheats

    Blooket Cheats

    05k0nz's legacy is safe

    Blooket-Cheats is a repository containing scripts and a small web interface for Blooket game modifications. It organizes cheat scripts by game mode and provides methods for loading them through bookmarklets, a GitHub Pages interface, or browser console execution. The repository includes folders for cheats, tutorials, auto-update logic, page styling, and front-end code. From a software perspective, it is a browser-script collection focused on manipulating a web game environment. However, using cheats can violate platform rules, undermine fair play, and create problems in classroom or competitive settings. It is best described neutrally as a JavaScript-based browser scripting repository rather than as a recommended gameplay tool.
    Downloads: 3,727 This Week
    Last Update:
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  • 3
    DeSmuME

    DeSmuME

    DeSmuME is a Nintendo DS emulator

    DeSmuME is the most seasoned open source Nintendo DS emulator. It sports tools designed for hackers, speedrunners, youtubers, and casual gamers. Homebrew programs are supported and can even be debugged through GDB. The Windows and OSX versions are both relatively feature rich, and there is a small universe of forks and mods that add even more features for casual gaming. DeSmuME is the origin of RetroArch and OpenEmu Nintendo DS support and is used by several mobile Nintendo DS emulators, with the notable exception of DraStic. DeSmuME's source code is now hosted at https://github.com/TASVideos/desmume/ win32 autobuilds @ https://ci.appveyor.com/project/zeromus/desmume/build/artifacts
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    Downloads: 14,953 This Week
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  • 4
    DLSS 5 Swapper

    DLSS 5 Swapper

    Install, tune and restore DLSS 5 in your games with one click

    DLSS5 Swapper is a Windows application for installing, configuring, and restoring DLSS 5 Neural Rendering in compatible PC games and emulators. It scans libraries from Steam, Epic, GOG, Xbox folders, and manually added locations. Multiple installation routes support native DLSS titles, DLSS5-Feeder, OptiScaler, RenoDX, and multipass rendering. Automatic backups and installation history make it possible to restore original game files when necessary. An in-game overlay provides access to supported DLSS settings while a title is running. The application also includes graphics-API detection, search filters, diagnostics, emulator support, and community compatibility reports. Recent releases add live community discussions and GPU-specific compatibility filtering.
    Downloads: 2,519 This Week
    Last Update:
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  • 5
    Open Aimbot

    Open Aimbot

    Universal Aim Assist Framework

    Open Aimbot is an open-source aim assist framework created for Roblox and designed to provide a wide range of targeting and player-tracking features. The project offers a highly customizable interface that allows users to adjust targeting behavior, visual overlays, and activation settings. Built as a universal framework, it supports multiple exploit environments and device configurations. Open Aimbot includes numerous filtering options that can differentiate targets based on factors such as teams, friends, player status, and visibility conditions. The framework also features configuration management tools, enabling users to save and switch between custom setups. As an open-source project, it provides accessible source code for modification, customization, and community contributions.
    Downloads: 2,394 This Week
    Last Update:
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  • 6
    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: 2,355 This Week
    Last Update:
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  • 7
    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: 2,034 This Week
    Last Update:
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  • 8
    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: 1,608 This Week
    Last Update:
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  • 9
    x360ce (Xbox 360 Controller Emulator)

    x360ce (Xbox 360 Controller Emulator)

    x360ce allows your controller to function as an Xbox 360 controller

    x360ce, or Xbox 360 Controller Emulator, is a Windows utility that lets many gamepads, joysticks, wheels, and other controllers behave like an Xbox 360 controller. It is mainly used for PC games that support XInput controllers but do not properly recognize older or non-Xbox DirectInput devices. Older versions worked by placing configuration and DLL files inside a game folder, while version 4 uses a virtual Xbox 360 controller driver while the app keeps running. The project includes the emulator application, supporting libraries, front-end tools, configuration logic, and controller mapping features. It can help users map buttons, triggers, sticks, POV inputs, and wheel controls to the layout expected by games. x360ce is useful for players who want broader controller compatibility without replacing their existing hardware.
    Downloads: 1,564 This Week
    Last Update:
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  • 10
    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: 1,366 This Week
    Last Update:
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  • 11
    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: 1,239 This Week
    Last Update:
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  • 12
    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.
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    Downloads: 4,685 This Week
    Last Update:
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  • 13
    Prodigy Hack

    Prodigy Hack

    One of the best Prodigy hacks

    Prodigy Hack is a browser-based or script-driven modification tool designed to alter gameplay behavior in the Prodigy Math Game by manipulating client-side logic and data handling. It allows users to modify in-game variables such as player stats, currency, progression, and other gameplay elements through injected scripts or browser console commands. The project demonstrates how web-based educational games can be influenced through client-side execution, exposing limitations in input validation and state management. It is typically implemented as a collection of scripts that can be executed in real time while the game is running, enabling immediate changes without modifying server infrastructure. The tool is often used for experimentation, reverse engineering, or demonstrating vulnerabilities in browser-based applications. It also reflects broader concepts in web security, particularly the importance of server-side validation and secure state management.
    Downloads: 1,086 This Week
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  • 14
    Citra Emulator

    Citra Emulator

    A Nintendo 3DS Emulator

    Citra is an experimental open-source Nintendo 3DS emulator/debugger written in C++. It is written with portability in mind, with builds actively maintained for Windows, Linux and macOS. Citra emulates a subset of 3DS hardware and therefore is useful for running/debugging homebrew applications, and it is also able to run many commercial games! Some of these do not run at a playable state, but we are working every day to advance the project forward. (Playable here means compatibility of at least "Okay" on our game compatibility list.) Citra is licensed under the GPLv2 (or any later version). Refer to the license.txt file included. Please read the FAQ before getting started with the project. If you want to contribute please take a look at the Contributor's Guide and Developer Information. You should also contact any of the developers in the forum in order to know about the current state of the emulator because the TODO list isn't maintained anymore.
    Downloads: 1,010 This Week
    Last Update:
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  • 15
    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: 4,331 This Week
    Last Update:
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  • 16
    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: 6,841 This Week
    Last Update:
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  • 17
    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: 934 This Week
    Last Update:
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  • 18
    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.)
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    Downloads: 4,014 This Week
    Last Update:
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  • 19

    NBTExplorer

    A graphical NBT editor for all Minecraft NBT data sources

    NBTExplorer is an open source graphical NBT (Named Binary Tag) data editor for Minecraft. It supports reading and writing in a number of formats including Standard NBT files (e.g. level.dat), Schematic files, Uncompressed NBT files (e.g. idcounts.dat), Minecraft region files and more.
    Downloads: 856 This Week
    Last Update:
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  • 20
    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: 816 This Week
    Last Update:
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  • 21
    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: 775 This Week
    Last Update:
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  • 22
    Monkeytype

    Monkeytype

    The most customizable typing website with a minimalistic design

    Monkeytype is a minimalistic and highly customizable typing test website built for speed practice, accuracy tracking, and typing habit improvement. It offers multiple test modes so users can practice with words, quotes, custom text, timed tests, and other variations. The interface is designed to feel natural by showing typed characters in place and providing immediate feedback on errors, speed, and accuracy. Users can create accounts to save typing history, review progress, and compare results over time. The project also includes many personalization options, including themes, sounds, caret behavior, layouts, and other user-configurable settings. It is useful for casual typists, competitive typing communities, keyboard enthusiasts, and developers interested in a full-featured web app.
    Downloads: 736 This Week
    Last Update:
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  • 23
    Borderless Gaming

    Borderless Gaming

    A simple tool for turning windowed video games into fullscreen apps

    Play your favorite games fullscreen and borderless with Borderless Gaming. It's a simple tool that allows you to turn windowed video games into "fullscreen" applications without all of the negative side effects and time-consuming alt-tabs.
    Downloads: 735 This Week
    Last Update:
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  • 24
    AIMi AI Aimbot

    AIMi AI Aimbot

    AIMi its an AI aimbot, it work by real-time object detection

    AIMi is a Python-based AI aim-assist experiment that uses real-time object detection to identify human-like shapes in game footage. It is built around neural network detection and OpenCV processing rather than direct modification of game files. The project presents itself as a beta implementation, with current behavior depending heavily on processor performance, model accuracy, and screen conditions. It includes a simple object-detector interface so users can see how the system recognizes targets during testing. The repository describes a CPU-heavy version with limited GPU usage and notes plans for faster GPU-oriented improvements. Because it is designed around game targeting behavior, it should only be discussed and used in authorized, accessibility-focused, private, or noncompetitive environments.
    Downloads: 706 This Week
    Last Update:
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  • 25
    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: 2,737 This Week
    Last Update:
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