[
  {
    "type": "mutation_category",
    "id": "SHOGGOTH",
    "name": "Horror",
    "threshold_mut": "THRESH_SHOGGOTH",
    "mutagen_message": "Another eye opens in your mind.",
    "iv_message": "You feel the stars overtaking you.",
    "memorial_message": "Embraced the unknowable.",
    "iv_min_mutations": 8,
    "iv_additional_mutations": 2,
    "iv_additional_mutations_chance": 50
  }
]