LDTK is a visual 2D level editor used for designing game worlds, layouts, and entities. It focuses on transforming visual map designs into structured JSON files for integration into game engines, while providing utilities to export level data into the Tiled TMX format for external compatibility.
The tool integrates directly with Aseprite, allowing source artwork to be linked to the editor so that visuals update in real time as external image files are saved. It also features automated tile rendering that applies visual skinning rules based on predefined configurations to manage map aesthetics.
The editor includes systems for defining customizable game entities with typed properties, managing world layouts and transitions, and maintaining automatic project state backups to recover unsaved work. It provides schema-driven code generation to create strongly typed data structures from JSON schemas, ensuring consistent data imports across different programming environments.