Defold is a cross-platform game engine designed for 2D game development, created by King, the company known for games like Candy Crush. It offers a lightweight, efficient framework that supports rapid development and deployment across various platforms, including mobile, desktop, and web. Defold features a visual editor, a built-in scripting language (Lua), and a robust asset management system, making it user-friendly for both beginners and experienced developers. Its focus on performance and ease of use has made it a popular choice for indie developers and small studios.