Cpp GitHub Repositories (2026) · Open Source Tools

fheroes2 is a recreation of Heroes of Might and Magic II game engine

Amalgam for x64 Team Fortress 2

A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.

A modern, mostly zero-allocation C++23 library for working with low-level Windows within user-space. Iteration over loaded modules via PEB, EAT iteration, lazy imports, syscalls, and more.

Welcome to the AWS Code Examples Repository. This repo contains code examples used in the AWS documentation, AWS SDK Developer Guides, and more. For more information, see the Readme.md file below.

RAJA Performance Portability Layer (C++)

eepp is an open source, cross-platform C++ GUI framework for building desktop applications, tools, and rich graphical interfaces.

modm: a C++23 library generator for AVR and ARM Cortex-M devices

Recipes for the ConanCenter repository

A decompilation and future source port of Roblox (December 2007)

Benchmarks compilation speeds of different combinations of languages and compilers.

Open-source C++17 engine for backtesting and forward execution, with a versioned C ABI; Pine Script v6 runs through code generation. Against TradingView's own trade lists, all 7,989 graded probes (309 open-corpus strategies, 741 closed-test scripts) grade excellent or strong: 7,983 excellent, 6 strong. Apache-2.0.

Turns a PS2 disc image into a native PC program by static recompilation; builds on ps2-web-recomp (MIT). Work in progress. Bring your own disc.

High-performance AI pipeline engine with a C++ core and 50+ Python-extensible nodes. Build, debug, and scale LLM workflows with 13+ model providers, 8+ vector databases, and agent orchestration, all from your IDE. Includes VS Code extension, TypeScript/Python SDKs, and Docker deployment.

Native C++ NES emulator with Python/Gymnasium APIs, vector execution, and cross-platform packaging.

Breath of the Wild (Wii U, v1.5.0) statically recompiled to a native Windows program with a Vulkan renderer.

Keyboard and mouse input mapper

A high performance Vulkan/DX12 game engine in C++ & C#

C++ library for building Wayland compositors.

Run x86 and x86-64 games on RISC‑V Linux