0ad/binaries/data/mods/public/maps/random/frontier.json

{
  "settings" : {
    "Name" : "Frontier",
    "Script" : "frontier.js",
    "Description" : "A wild, unknown landscape awaits rival explorers.",
    "Preview" : "frontier.png",
    "SupportedBiomes": "generic/",
    "CircularMap" : true
  }
}