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Top 23 CMake Open-Source Projects
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Project mention: My Battle with CI/CD - CMake, Windows, and Cross-Platform Pain | dev.to | 2025-11-14
- name: Setup vcpkg and install libgit2 (Windows) if: runner.os == 'Windows' run: | git clone https://github.com/Microsoft/vcpkg.git cd vcpkg .\bootstrap-vcpkg.bat .\vcpkg install libgit2:x64-windows # This is redundant!
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Project mention: OpenRCT2 v0.5.1 "Swamp Castle" released Last version to support Windows 7 | news.ycombinator.com | 2026-05-30
You can follow the link to the cask code on GitHUb and the line disabling will (usually) leave a clear reason. In this case, because of Gatekeeper/codesigning because that costs money https://github.com/OpenRCT2/OpenRCT2/issues/15879?utm_source...
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The least painful C/C++ build tool I've used is xmake
https://github.com/xmake-io/xmake
The reason why I like it (beyond ease-of-use) is that it can spit out CMakeLists.txt and compile_commands.json for IDE/LSP integration and also supports installing Conan/vcpkg libraries or even Git repos.
set_project("myapp") -
About Monero: https://getmonero.org
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Although vcpkg is probably the most popular, I’m a fan of https://conan.io/
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Project mention: GOG is getting acquired by its original co-founder: What it means for you | news.ycombinator.com | 2025-12-29
You might be interested in VCMI, which is an open source engine for HoMM3.
https://vcmi.eu/
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ModernCppStarter
🚀 Kick-start your C++! A template for modern C++ projects using CMake, CI, code coverage, clang-format, reproducible dependency management and much more.
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CPM.cmake
📦 CMake's missing package manager. A small CMake script for setup-free, cross-platform, reproducible dependency management.
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warzone2100
Command the forces of The Project in a battle to rebuild the world after mankind has been nearly destroyed by nuclear missiles. A 100% free and open source real-time strategy game for Windows, macOS, Linux, BSD+
Project mention: Ask HN: Which Do you know any open source games? | news.ycombinator.com | 2025-08-10 -
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xray-16
Improved version of the X-Ray Engine, the game engine used in the world-famous S.T.A.L.K.E.R. game series by GSC Game World. Join OpenXRay! ;)
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widelands
Widelands is a free, open source real-time strategy game with singleplayer campaigns and a multiplayer mode. The game was inspired by Settlers II™ (© Bluebyte) but has significantly more variety and depth to it.
Project mention: Widelands is a free, open-source real-time strategy game inspired by Settlers II | news.ycombinator.com | 2025-11-24 -
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Meet cmake-init — an awesome open-source project that can completely tale care of creating your C/C++ projects with a professional structure, ready-made CMake setup, testing, and more.
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
CMake discussion
CMake related posts
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CMake Support for the Dear ImGui
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I built a Cargo-like build tool for C/C++
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Hello Worg, the Org-Mode Community
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Initializing C and C++ projects with cmake-init
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Isocoaster – Theme Park Builder
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Xmake: A cross-platform build utility based on Lua
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We Put Claude Code in Rollercoaster Tycoon
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A note from our sponsor - SaaSHub
www.saashub.com | 7 Jun 2026
Index
What are some of the best open-source CMake projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Vcpkg | 27,123 |
| 2 | OpenRCT2 | 15,784 |
| 3 | openage | 14,239 |
| 4 | cmake-examples | 13,061 |
| 5 | xmake | 12,026 |
| 6 | monero | 10,585 |
| 7 | conan | 9,387 |
| 8 | Mumble | 8,044 |
| 9 | vcmi | 5,666 |
| 10 | awesome-cmake | 5,387 |
| 11 | ModernCppStarter | 5,362 |
| 12 | Librum | 5,288 |
| 13 | magnum | 5,165 |
| 14 | CPM.cmake | 4,016 |
| 15 | warzone2100 | 3,831 |
| 16 | dockcross | 3,586 |
| 17 | OpenSceneGraph | 3,574 |
| 18 | xray-16 | 3,500 |
| 19 | rttr | 3,456 |
| 20 | SHOGUN | 3,071 |
| 21 | widelands | 2,850 |
| 22 | cmake-cookbook | 2,847 |
| 23 | cmake-init | 2,527 |
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