{
  "game": "dragon",
  "displayName": "Dragon Tower",
  "rtpPercent": 99.0,
  "rtpE8": 99000000,
  "engine": "uint32",
  "biasClass": "uniform",
  "params": [
    {
      "name": "difficulty",
      "desc": "easy/medium/hard/expert/master"
    },
    {
      "name": "picks",
      "desc": "column per row"
    }
  ],
  "rows": 9,
  "difficulty": {
    "easy": {
      "tiles": 4,
      "eggs": 1
    },
    "medium": {
      "tiles": 3,
      "eggs": 1
    },
    "hard": {
      "tiles": 2,
      "eggs": 1
    },
    "expert": {
      "tiles": 3,
      "eggs": 2
    },
    "master": {
      "tiles": 4,
      "eggs": 3
    }
  },
  "note": "per row: shuffle(tiles) → first `eggs` are eggs; climb while the picked column is safe; multiplier = rtp·tiles^k/(tiles−eggs)^k."
}