Open Source Windows Games
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Games for Windows
View 27412 business solutionsBrowse 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
VCMI Project
Open-source engine for Heroes of Might and Magic III
VCMI is work-in-progress attempt to recreate engine for Heroes III, giving it new and extended possibilities. To use VCMI you need to own original data files. -
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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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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. -
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3D game engine (more powerful redesign of the Cube engine) and FPS game
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5
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. -
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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. -
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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. -
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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. -
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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. -
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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/ -
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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 -
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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. -
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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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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. -
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ii's Stupid Menu
A mod menu for Gorilla Tag with over 1000+ mods
ii’s Stupid Menu is an open-source mod menu for the VR game Gorilla Tag that provides a wide range of gameplay modifications and utilities through an in-game interface. It is designed to give players and developers access to a large collection of mods that can alter movement, interaction, and game mechanics. The menu includes hundreds of features, ranging from cosmetic changes to more advanced gameplay modifications, making it one of the more extensive modding tools available for the game. It is built with a modular architecture that allows developers to extend or customize functionality, encouraging community contributions and experimentation. The project emphasizes openness and collaboration, aiming to keep modding accessible rather than locked behind proprietary systems. It supports multiple VR platforms and includes compatibility layers for different hardware setups. -
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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. -
17
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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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). -
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FlightGear - Flight Simulator
FlightGear Flight Simulator: free open-source multiplatform flight sim
Founded in 1997, FlightGear is developed by a worldwide group of volunteers, brought together by a shared ambition to create the most realistic flight simulator possible that is free to use, modify and distribute. FlightGear is used all over the world by desktop flight simulator enthusiasts, for research in universities and for interactive exhibits in museums. FlightGear features more than 400 aircraft, a worldwide scenery database, a multi-player environment, detailed sky modelling, a flexible and open aircraft modelling system, varied networking options, multiple display support, a powerful scripting language and an open architecture. Best of all, being open-source, the simulator is owned by the community and everyone is encouraged to contribute. -
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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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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. -
22
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. -
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Voidstrap
Voidstrap is a simple yet advanced fork of Bloxstrap
Voidstrap is an open-source Roblox launcher and bootstrapper forked from Bloxstrap. It is designed for Windows users who want a simpler but more customizable Roblox launch experience. The project provides launcher-level improvements without positioning itself as a cheat, exploit, or Roblox security bypass. It supports configuration management, performance-oriented customization, and a cleaner launcher workflow for users who prefer more control than the standard Roblox launcher offers. Voidstrap is built with C# and .NET and keeps its source available for public inspection. It is best suited for Roblox players who want a community-maintained launcher focused on customization, transparency, and usability. -
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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. -
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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.)
