Box2D is a 2D physics engine for games
It's called boxed, and it's open source. See for yourself https://box2d.org
NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.
Show HN: I made a web-based notepad with a built in unit calculator
13 projects | news.ycombinator.com | 17 Aug 2022
What’s your favourite programming project that you’ve completed?
3 projects | reddit.com/r/AskProgramming | 16 Aug 2022
CMakeLists.txt -> <terminated> (exit value: -1.073.741.515)
1 project | reddit.com/r/cpp_questions | 9 Aug 2022
Quantum mechanics be like
1 project | reddit.com/r/blender | 3 Aug 2022
Convenient CPU feature detection and dispatch in the Magnum Engine
9 projects | reddit.com/r/cpp | 2 Aug 2022