Kartographer is a MediaWiki extension that adds map capability See https://www.mediawiki.org/wiki/Extension:Kartographer

This is the RuneScape variant. The maps are altered to display the RuneScape maps. More info https://oldschool.runescape.wiki/w/RuneScape:Map and https://runescape.wiki/w/RuneScape:Map

For information on the available GeoJSON shape types and syntax as well as the possible <mapframe> and <maplink> tag atttributes see: https://runescape.wiki/w/RuneScape:Create_Map