PtolemyJS is an Open Source 2D map engine for video games in JS !
PtolemyJS is inspired by
- Paradox Interactive's Clausewitz Engine
- Amit Patel's fantastic work on procedural map generation with voronoi diagrams ( http://www-cs-students.stanford.edu/~amitp/game-programming/polygon-map-generation/ )
try a live demo at http://feelic.fr/PtolemyJS/ !!