Browse free open source C++ Games and projects below. Use the toggles on the left to filter open source C++ Games by OS, license, language, programming language, and project status.

  • Go From AI Idea to AI App Fast Icon
    Go From AI Idea to AI App Fast

    One platform to build, fine-tune, and deploy ML models. No MLOps team required.

    Access Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
    Try Free
  • Earn up to 16% annual interest with Nexo. Icon
    Earn up to 16% annual interest with Nexo.

    Access competitive interest rates on your digital assets.

    Generate interest, borrow against your crypto, and trade a range of cryptocurrencies — all in one platform. Geographic restrictions, eligibility, and terms apply.
    Get started with Nexo.
  • 1

    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.
    Leader badge
    Downloads: 97 This Week
    Last Update:
    See Project
  • 2
    DuckStation

    DuckStation

    Fast PlayStation 1 emulator for x86-64/AArch32/AArch64

    DuckStation is an simulator/emulator of the Sony PlayStation(TM) console, focusing on playability, speed, and long-term maintainability. The goal is to be as accurate as possible while maintaining performance suitable for low-end devices. "Hack" options are discouraged, the default configuration should support all playable games with only some of the enhancements having compatibility issues. A "BIOS" ROM image is required to to start the emulator and to play games. You can use an image from any hardware version or region, although mismatching game regions and BIOS regions may have compatibility issues. A ROM image is not provided with the emulator for legal reasons, you should dump this from your own console using Caetla or other means. DuckStation features a fully-featured frontend built using Qt, as well as a fullscreen/TV UI based on Dear ImGui.
    Downloads: 15 This Week
    Last Update:
    See Project
  • 3
    PuerTS

    PuerTS

    Write your game with TypeScript in UE or Unity

    Write your game with TypeScript in UE or Unity. PuerTS can be pronounced as pu-erh TS. PuerTS is a TypeScript programming solution within game engines. Facilitates game-building processes by combining JavaScript ecosystem with the rendering power of professional game engines. In contrast to lua script, TypeScript supports static type checking, which significantly improves code robustness and maintainability. High efficiency: supports reflection binding throughout the platform (engine), no extra steps (code generation) needed for development. High performance supports static binding throughout the platform (engine), takes care of complex scenes.
    Downloads: 15 This Week
    Last Update:
    See Project
  • 4
    UZDoom

    UZDoom

    UZDoom is a feature centric port for all Doom engine games

    UZDoom is a modern, feature-focused source port of the classic DOOM engine that builds upon the foundations of GZDoom while introducing additional rendering enhancements and extended scripting capabilities. It is designed to run a wide range of DOOM-engine games while significantly improving visual fidelity through high-resolution graphics, dynamic lighting, and advanced rendering pipelines. The engine incorporates modern technologies such as OpenGL and Vulkan to provide better performance and graphical flexibility compared to older ports. UZDoom also emphasizes modding, offering powerful scripting systems that allow developers to create complex gameplay modifications, new mechanics, and custom content. Its architecture is community-driven, evolving through contributions from developers and modders who expand its capabilities over time. The project maintains compatibility with existing DOOM mods while pushing forward with experimental features and enhancements.
    Downloads: 15 This Week
    Last Update:
    See Project
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • 5
    AntiMicroX

    AntiMicroX

    Program used to map keyboard buttons and mouse controls to a gamepads

    AntiMicroX is a graphical program used to map keyboard keys and mouse controls to a gamepad. This program is useful for playing PC games using a gamepad that do not have any form of built-in gamepad support. However, you can use this program 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. It allows mapping of gamepads/joystick buttons to: - keyboard buttons - mouse buttons and moves - scripts and apps - macros consisting of elements mentioned above This application is continuation of project called AntiMicro. Project site: https://github.com/AntiMicroX/antimicrox
    Leader badge
    Downloads: 384 This Week
    Last Update:
    See Project
  • 6
    OpenLierox is an extremely addictive realtime worms shoot-em-up backed by an active gamers community. Dozens of levels and mods are available to provide endless gaming pleasure.
    Downloads: 76 This Week
    Last Update:
    See Project
  • 7

    Scorched 3D

    A simple turn-based artillery game and also a real-time strategy game.

    Scorched3D incorporates lively, fully destructible 3D landscapes that include animated jets, naval vessels, water and even birds, with detailed tanks and projectiles and stunning visual effects. A simple turn-based artillery game and also a real-time strategy game in which players can counter each others' weapons with other creative accessories, shields and tactics. Test your skill in timing, aiming and judgement of distance, move around on the landscape, or outsmart your opponent economically.
    Downloads: 63 This Week
    Last Update:
    See Project
  • 8
    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: 14 This Week
    Last Update:
    See Project
  • 9
    Tiled

    Tiled

    Flexible level editor

    Tiled is a free and open source, easy to use, and flexible level editor. Tiled is highly flexible. It can be used to create maps of any size, with no restrictions on tile size, or the number of layers or tiles that can be used. Maps, layers, tiles, and objects can all be assigned arbitrary properties. Tiled's map format (TMX) is easy to understand and allows multiple tilesets to be used in any map. Tilesets can be modified at any time. Tiled is a general purpose tile map editor for all tile-based games, such as RPGs, platformers or Breakout clones. Tiled was originally written in Java. In 2008, work began to develop a faster, better looking, and easier-to-use version of Tiled based on the Qt framework. This decision was made as the Qt framework has a greater feature set than is offered by the standard Java libraries. Before you can compile Tiled, you must ensure the Qt (>= 5.6) development libraries have been installed as well as the Qbs build tool.
    Downloads: 14 This Week
    Last Update:
    See Project
  • Forever Free Full-Stack Observability | Grafana Cloud Icon
    Forever Free Full-Stack Observability | Grafana Cloud

    Our generous forever free tier includes the full platform, including the AI Assistant, for 3 users with 10k metrics, 50GB logs, and 50GB traces.

    Built on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.
    Create free account
  • 10
    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, ARM and PPC), FreeBSD, OpenSolaris and Windows.
    Leader badge
    Downloads: 365 This Week
    Last Update:
    See Project
  • 11
    PrBoom, the purest Doom-Port? Aims to be the most stable Doom port with the highest compatibility to the major Doom versions. Highres software and nice OpenGL rendering. Full Boom and most if not all MBF features.
    Leader badge
    Downloads: 103 This Week
    Last Update:
    See Project
  • 12
    Minecraft Clicker

    Minecraft Clicker

    Customizable Minecraft auto clicker

    Minecraft Clicker is a customizable Minecraft auto clicker solution. Minecraft AutoClicker with CPS randomization and build function. Designed for Minecraft Java Edition (can't be tested on Bedrock Edition).
    Downloads: 13 This Week
    Last Update:
    See Project
  • 13
    Open 3D Engine (O3DE)

    Open 3D Engine (O3DE)

    Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D

    Easier team collaboration, artist workflows & multiplayer setup, increased terrain performance, new rendering features. Developed with cutting-edge, real-time graphics and complex interactions in mind, O3DE allows you to create robust, engaging experiences using our multi-threaded and extensible photorealistic renderer. O3DE's modular architecture is built for customization from day one. Each component, known as a Gem, can be adopted separately, giving you access to the specific functionality needed for your application. Add new editing tools, features, and development workflows to your projects. Choose from a variety of community-maintained Gems to extend and enhance the engine's capabilities in anything from AI and robotics to push notifications and VR.With our engine's SDK capabilities, you can use O3DE as a foundation for any type of 3D project you can imagine.
    Downloads: 13 This Week
    Last Update:
    See Project
  • 14
    Switch theme injector

    Switch theme injector

    Create custom themes for the Nintendo Switch

    The Switch theme injector project is split into three parts. Switch theme injector (Windows app): An app to create and edit custom themes. NXThemes installer: An homebrew app that runs on the switch itself and can be used to install and manage themes. Switch theme injector online (also called WebInjector): A port of the Windows injector as a web app, it lacks some features like custom applet icons and common.szs layouts support. The main objective is to develop a complete toolset to create and install custom themes on the switch. As the console os doesn't implement custom themes natively most of this is done by patching system SZS files to get the desired aspect. Unfortunately, SZS files from the switch os contain copyrighted data and can't be shared online that's why the nxtheme format has been developed, it contains only differential info and can be freely shared. Unless you're dealing with making your own patches and custom layouts you should only use nxtheme files.
    Downloads: 13 This Week
    Last Update:
    See Project
  • 15
    Vita3K

    Vita3K

    Experimental PlayStation Vita emulator

    Vita3K is an experimental PlayStation Vita emulator for Windows and Linux. The emulator currently runs some homebrew programs. It is also able to load some decrypted commercial games. Vita3K is licensed under the GPLv2 license. This is largely dictated by external dependencies, most notably Unicorn. Specify the path to a .vpk file as the first command line argument, or run Vita3K --help from the command-line for a full list of options. For more detailed instructions on running/installing games on all platforms, please read the #info-faq channel on our Discord Server. The project is at an early stage, so please be sensitive to that when opening new issues. Expect crashes, glitches, low compatibility and poor performance.
    Downloads: 13 This Week
    Last Update:
    See Project
  • 16
    Chromium B.S.U.

    Chromium B.S.U.

    fast paced, arcade-style, top-scrolling space shooter

    You are captain of the cargo ship Chromium B.S.U., responsible for delivering supplies to our troops on the front line. Chromium B.S.U. is a fast paced, arcade-style, top-scrolling shooter. It uses OpenGL for graphics, and OpenAL for sound effects.
    Leader badge
    Downloads: 72 This Week
    Last Update:
    See Project
  • 17
    xBRZ

    xBRZ

    xBRZ: "Scale by rules" - high quality image upscaling filter by Zenju

    xBRZ is a high-quality image upscaling filter for creating beautiful HD representations from low-resolution images. Reference implementations for common emulators can be found in the download section: ● DOSBox ● ePSXe ● HqMAME ● ScummVM ● Snes9x ● Kega Fusion http://sourceforge.net/projects/xbrz/files/ Test the xBRZ scaler with your own images and compare against other scalers with the "Scaler Test" tool: http://sourceforge.net/projects/xbrz/files/ScalerTest_1.1.zip
    Leader badge
    Downloads: 119 This Week
    Last Update:
    See Project
  • 18
    A Jump and Run game like Super Mario World with an advanced Editor and highly detailed Graphics based on SDL with a OpenGL accelerated Graphics Renderer developed in C++. Runs under Linux, Windows and Mac and can be easily ported to other platforms.
    Downloads: 54 This Week
    Last Update:
    See Project
  • 19
    Rise of Mankind: A New Dawn is an expansion for the popular Civilization 4 mod, Rise of Mankind.
    Downloads: 67 This Week
    Last Update:
    See Project
  • 20
    GLScene

    GLScene

    GLScene Engine for Delphi & C++Builder VCL Windows 32/64

    GLScene is an OpenGL based 3D library for Delphi, C++Builder and Lazarus. It provides visual components and objects allowing description and rendering 3D scenes in graphic applications. Update of newer versions of the trunk has been moved to https://github.com/glscene
    Downloads: 54 This Week
    Last Update:
    See Project
  • 21
    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.
    Downloads: 81 This Week
    Last Update:
    See Project
  • 22
    Mega Mario
    Mega Mario is a Super Mario Bros. 1 clone. It features everything the original features - with better graphics, higher resolution, smoother movement and new levels. The story of Mario and Luigi continues, in old-school style. Also visit the official HP.
    Downloads: 77 This Week
    Last Update:
    See Project
  • 23
    Bullet Physics SDK

    Bullet Physics SDK

    Real-time collision detection and multi-physics simulation for VR

    This is the official C++ source code repository of the Bullet Physics SDK: real-time collision detection and multi-physics simulation for VR, games, visual effects, robotics, machine learning etc. We are developing a new differentiable simulator for robotics learning, called Tiny Differentiable Simulator, or TDS. The simulator allows for hybrid simulation with neural networks. It allows different automatic differentiation backends, for forward and reverse mode gradients. TDS can be trained using Deep Reinforcement Learning, or using Gradient based optimization (for example LFBGS). In addition, the simulator can be entirely run on CUDA for fast rollouts, in combination with Augmented Random Search. This allows for 1 million simulation steps per second. It is highly recommended to use PyBullet Python bindings for improved support for robotics, reinforcement learning and VR. Use pip install pybullet and checkout the PyBullet Quickstart Guide.
    Downloads: 12 This Week
    Last Update:
    See Project
  • 24
    GPCS4

    GPCS4

    A work-in-progress PlayStation 4 emulator

    A PlayStation 4 emulator which was just started. A project done for fun, and for technical research. The only reason I have started this project is for learning 3D graphics. It's not intended to become a serious application. Support simple compute shader, compute ring, cube maps. For more details you could join our discord server to contact me, or if you are used to Tencent QQ/TIM, just join our group. There you can get more resources which are useful for contributing. To run or develop GPCS4, a CPU supporting AVX instruction set as well as a graphics card supporting Vulkan 1.3 are required.
    Downloads: 12 This Week
    Last Update:
    See Project
  • 25
    Open Syobon Action
    A cross platform, open source version of the unforgiving Japanese parody of Super Mario Bros. Now for Windows (fixed) and AmigaOS 4*! Requires: SDL, SDL_image, SDL_gfx, SDL_mixer, SDL_ttf *Thanks to Michael Trebilcock for the port
    Leader badge
    Downloads: 108 This Week
    Last Update:
    See Project
MongoDB Logo MongoDB