return {
  datas = {
    zone = "forest",
    bypass_zone = false,
    bypass_data = {
      name    = nil,
      borders = 3,
      tiles   = 3,
      background = nil,
      music = nil
    },
    missiondata = {
      leveltype   = "loop",
      missiontype = "goal",
      turns       = 4
    }
  },
  layout = {{"self", {00}}, {"basics", {00, 00}},},
  parts = {
    [0] = {{"basics", {01}}, {"basics", {00}}}
  },
  endless_parts = {
    {"basics", 00},
    {"self", 00}
  }
}