An open-source sandbox tower defense game
Sandbox video game with a powerful physics engine
Spring 5 Reactive playground
Voxel game-creation platform with easy modding and game creation
Written in C++ and using SDL, The Powder Toy is a desktop version of the classic 'falling sand' physics sandbox, it simulates air pressure and velocity as well as heat.
Open-source, serverless, multi-LLM group chat application
Resources for Blazor, a .NET web framework using C#/Razor
Cuckoo Sandbox is for automated analysis of malware