LDtk
LDtk organizes levels, layers, entities, fields, auto-tiles, and worlds, exporting stable JSON with integrations for several engines.
Why it’s here
A clear data model and capable auto-layer rules pair a friendly design workflow with deterministic program-side import.
Best fit
Art, animation, audio, levels, and narrative turn mechanics into a believable world.
Before you commit
It has its own schema and migration cadence; pin and test compatibility when relying on a community importer.