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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
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).
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 |
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www.influxdata.com