This paper introduces an interactive educational application. It features a sandbox environment with various scenarios where different collision detection algorithms are utilized and visualized. This setup allows users to interact with and gain a comfortable and efficient understanding of how these algorithms work internally. Developed by a single person using raw C++ programming and basic rendering libraries, this paper presents an application that aims to assist anyone interested in entering the field of physics simulation and collision detection. It is suitable for beginners looking to start learning, experienced users seeking to refresh their knowledge, and teachers who wish to offer this tool to their students as a supplementary learning resource.