what is merlion-defense fr?

Merlion Defense is a browser based tower defense game inspired by Kingdom Rush, but set entirely in real neighbourhoods of Singapore. Instead of fictional maps, each of its 30 levels is built from actual OpenStreetMap data, so the roads, housing blocks, malls, rivers, and MRT rail lines you defend are the real geography of places like Ang Mo Kio, Changi Village, Tiong Bahru, and Merlion Park, with enemy paths following the real streets and trains animating along the real viaducts. The game is built with plain HTML5 Canvas and JavaScript, with no separate backend server and no build tools required to develop it. It can be run either through Docker Compose, which starts a small web server automatically, or by serving the web folder yourself with any static file server, such as Python's built in one. Levels are grouped into four difficulty tiers that sweep across the island from north to south, each with a boss drawn from South East, South, and East Asian folklore, such as a Naga or the Ox-Head Warden. Every level offers three modes: a standard campaign for up to three stars, a one life Heroic Challenge against elite waves, and a one life Iron Challenge with a restricted set of towers. Players also control a hero character drawn from Singaporean and regional legend, build and upgrade towers with locally flavored names like the Durian Launcher or Hawker Wok, and earn merit points to unlock more towers and heroes in an in game armory. Progress saves automatically in the browser's local storage, with an export and import option for backing up or transferring a save file. The project also includes a small command line tool for regenerating a level's real world map geometry from OpenStreetMap's Overpass API, useful if someone wants to tweak or extend a level. The README does not mention a license, so it is unclear under what terms the code and game may be reused.