The creator of the Impact JavaScript game engine rebuilt it in C and called it high_impact. This new engine is designed for 2D action games and runs on Windows, Mac, Linux, and the web. high_impact utilizes a simple framework with minimal code and is highly extensible, offering support for tile-maps, entities, collision detection, and rendering through OpenGL or a software renderer. The developer ported two of his original Impact games, Biolab Disaster and Drop, to high_impact to demonstrate the engine's functionality.