{
  "id": "alien_ruins",
  "name": "Alien Ruins",
  "category": "exploration",
  "description": "Ancient alien structures filled with mysterious technology",
  "difficulty": "medium",
  "minLevel": 3,
  "roomCount": [
    5,
    8
  ],
  "energyCost": 20,
  "rewardMultiplier": 1.2,
  "enemyPool": [
    "alien_guardian",
    "ancient_drone",
    "crystal_golem"
  ],
  "bossId": "crystal_golem",
  "rewards": {
    "creditsMin": 200,
    "creditsMax": 500,
    "experienceMin": 150,
    "experienceMax": 300
  },
  "ui": {
    "icon": "fa-monument",
    "color": "#4488cc"
  }
}