A Level Editor is a software tool that allows users to create and modify levels or environments in video games. It provides a user-friendly interface where designers can place objects, set up challenges, and define the layout of a game level. This tool is essential for game development, enabling creators to customize gameplay experiences. Level editors are often included in game development software or provided as standalone applications. They can vary in complexity, from simple drag-and-drop systems to advanced editors that require programming knowledge. Popular examples include the level editors found in games like Super Mario Maker and Minecraft.