diff --git a/README.md b/README.md
index 61f8c5e..21f6570 100644
--- a/README.md
+++ b/README.md
@@ -127,6 +127,7 @@ A curated list of awesome C++ (or C) frameworks, libraries, resources, and shiny
 * [rpp](https://github.com/TheNumbat/rpp) - Minimal Rust-inspired C++20 STL replacement. [MIT]
 * [SaneCppLibraries](https://github.com/Pagghiu/SaneCppLibraries) - a set of C++ platform abstraction libraries for macOS, Windows and Linux. [MIT] [website](https://pagghiu.github.io/SaneCppLibraries/)
 * [Seastar](https://github.com/scylladb/seastar) - An advanced, open-source C++ framework for high-performance server applications on modern hardware. [Apache-2.0 License] [seastar.io](http://seastar.io/)
+* [Siv3D](https://github.com/Siv3D/OpenSiv3D) - Siv3D (OpenSiv3D) is a C++20 framework for creative coding (2D/3D games, media art, visualizers, and simulators). [MIT] [website](https://siv3d.github.io/)
 * [STLport](http://www.stlport.org/) - An exemplary version of STL. [Free]
 * [STXXL](http://stxxl.sourceforge.net/) - Standard Template Library for Extra Large Data Sets. [Boost]
 * [tbox](https://github.com/tboox/tbox) - A glib-like multi-platform c library. [Apache2] [website](http://tboox.org/)