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Top 23 C++ CMake Projects
- Project mention: Interview with RollerCoaster Tycoon's Creator, Chris Sawyer | news.ycombinator.com | 2025-12-03
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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About Monero: https://getmonero.org
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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 -
Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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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! ;)
View the Project on GitHub
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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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moneymanagerex
Money Manager Ex is an easy to use, money management application built with wxWidgets
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Not it is the free software or open source version of this game, but OpenLoco https://openloco.io/ is great, and I hope that this game in near future will have a free assets like as OpenTTD https://www.openttd.org/ .
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Gerbera
UPnP Media Server for 2025: Stream your digital media through your home network and consume it on all kinds of UPnP supporting devices 📱💻📺
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xtd
Free open-source modern C++20 framework to create console (CLI), forms (GUI like WinForms) and unit test (xUnit) applications and libraries on Windows, macOS, Linux, iOS, Android, FreeBSD, Haiku, and SerenityOS.
Project mention: Xtd: Modern C++20 framework (CLI, GUI, unit tests) | news.ycombinator.com | 2025-11-26 -
SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
C++ CMake discussion
C++ CMake related posts
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VCMI: An open-source engine for Heroes III
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Interview with RollerCoaster Tycoon's Creator, Chris Sawyer
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"Return To The Roots" is a fan-project, which aims to renew The Settlers 2
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How to Build a Qt Barcode Scanner with MSVC and Dynamsoft C++ Barcode SDK on Windows
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Play Flash games on mobile with Ruffle Virtual Keyboard
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The Year of Peak Might and Magic
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Open-Source Engine for Heroes of Might and Magic III
- A note from our sponsor - Stream getstream.io | 23 Dec 2025
Index
What are some of the best open-source CMake projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | OpenRCT2 | 14,925 |
| 2 | monero | 10,129 |
| 3 | Mumble | 7,472 |
| 4 | vcmi | 5,344 |
| 5 | Librum | 5,217 |
| 6 | magnum | 5,089 |
| 7 | warzone2100 | 3,614 |
| 8 | OpenSceneGraph | 3,487 |
| 9 | rttr | 3,391 |
| 10 | xray-16 | 3,353 |
| 11 | SHOGUN | 3,056 |
| 12 | cmake-cookbook | 2,838 |
| 13 | widelands | 2,151 |
| 14 | Diagon | 2,123 |
| 15 | moneymanagerex | 2,116 |
| 16 | nitroshare-desktop | 1,648 |
| 17 | OpenLoco | 1,578 |
| 18 | Gerbera | 1,318 |
| 19 | mp-units | 1,305 |
| 20 | innoextract | 1,222 |
| 21 | openspades | 1,198 |
| 22 | WasIstLos | 1,152 |
| 23 | xtd | 1,108 |