Tileset Studio

An offline isometric map editor and renderer extracted from Spell of Mastery.

Open spell-of-mastery-tileset-studio.html in a modern browser. No installation, web server, or network connection is required. The editor includes terrain and shore auto-tiling, elevation, cliffs and slopes, prop placement, seeded random map generation, topologically sorted rendering, and optional raycast shadows. Independent Rain, Night, directional Wind, and Liquid shader preview modes can be combined freely from the Options panel.

Maps can be imported and exported as JSON, and the rendered canvas can be saved as PNG.

LICENSE

CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Credit "NancyGold / Spell of Mastery" in your credits, about box, or accompanying documentation. Commercial use and modification are permitted.

WHO MADE THIS

Built for Spell of Mastery (https://som.aermia.com) by Nancy Sadkov / NancyGold. The original game and rendering tools are written in Symta (https://symta.aermia.com).