[Browser] I search a live map for my game

Which game is this from?

I know there are a few sources on the forums where live maps are implemented, like the Pokemon SKY source. You can use that and make it work with your source.
But thats build with PHP, AJAX and MySQL so thats not the best way, i suggest to learn NodeJS and built something yourself (will work the fastest).

so still in the topic, what can we do best for nintendo dont shutdown? because i've seen a lot of pokemons servers with thousands of players registered and still live for some years