Low Health Makes Vvardenfell Worse

What this demonstrates

• player_health
• object_type, cell_match, and record_id
• transform, create, and replace
• Persistent instance mutations

Why it works

Three rules use increasingly severe absolute health thresholds. At 50 health or less, selected tomb clutter drifts. At 25 or less, it grows a few more bones. At 10 or less, skulls and bone piles have a small chance to become bonewalkers. Since matching rules can all contribute, the lowest-health band can layer all three effects during one activation.

The player's state controls whether a mutation occurs when the object becomes active. It does not continuously control the mutation afterward.

The catch

• player_health compares absolute current health; it is not a percentage-of-maximum-health condition. Tune the thresholds for the intended difficulty curve.
• Every rule uses once: true. The world mutation persists after recovery; once only prevents a successful rule from being applied again to the same object.
• Chance misses do not consume once: true. The 25-health bone pool and 10-health replacement remain eligible until their action actually changes something; they are repeated opportunities, not one-shot lifetime lotteries.
• SSS does not scan unloaded cells or react when health changes. The target must become active while the threshold matches.
• The fixture uses vanilla static record IDs; add more selectors only after checking the active content load order.

Complete YAML

The source fixture is Examples/InstanceModifier_LowHealthMakesVvardenfellWorse.yaml.

log_name: Low Health Makes Vvardenfell Worse
priority: polish

instances:
  - conditions:
      - object_type: Static
      - cell_match: tomb
      - record_id:
          - furn_bone_01
          - furn_bone_rib_01
          - furn_bone_skull_01
          - furn_bone_stake00
          - furn_com_lantern_hook
      - player_health:
          max: 50
    once: true
    actions:
      - transform:
          position:
            x: { min: -3, max: 3 }
            y: { min: -3, max: 3 }
          rotate:
            z: { min: -8, max: 8 }

  - conditions:
      - object_type: Static
      - cell_match: tomb
      - record_id:
          - furn_bone_01
          - furn_bone_rib_01
          - furn_bone_skull_01
          - furn_bone_stake00
          - furn_com_lantern_hook
      - player_health:
          max: 25
    once: true
    actions:
      - create:
          furn_bone_01:
            count:
              max: 2
            chance: 0.25
            position:
              x: { min: -64, max: 64 }
              y: { min: -64, max: 64 }

  - conditions:
      - object_type: Static
      - cell_match: tomb
      - record_id:
          - furn_bone_01
          - furn_bone_skull_01
      - player_health:
          max: 10
    once: true
    actions:
      - replace:
          bonewalker: 0.05