⚠ DEV REFERENCE ONLY — not linked from any live page. This file holds the combat multiplier engine, referenced by ID from civic3-loadout-developer-registry.html and the-bestiary-mvp.html. It does not duplicate either file's full records. Amendment/Bestiary Box 1+4 tags below are a drafted starting dataset, not final — cross-check against the source registries before treating any single row as locked.

CIVIC3 · COMBAT FORMULA REGISTRY

The Four-Quadrant Box · Type Effectiveness · Parcel Field Terrain Integration

1 · The Four-Quadrant Box

The reusable unit stamped on every amendment, every piece of equipment, and every Bestiary entry. Box 1 and Box 4 are identity — fixed forever. Box 2 and Box 3 are magnitude — they move constantly with tier and level. This split is why a 1st Amendment Sword never becomes a different weapon at Tier 5; it just gets bigger.

Box 1 — Type
Axis (fixed forever): Offense · Defense · Economic · Media · Cross-cutting
Box 2 — Tier
I–V — which forge/encounter tier this instance sits at
Box 3 — Level
1–100ish — swings wildly within a tier as gear/crew improve
Box 4 — Actor / Meter
Public/Private × CTP/CDP — the danger-in-progress box. Can silently mismatch even when Boxes 1–3 look identical to a prior fight.

2 · The Formula

Effective Damage = Base Damage × Axis/Move-Type Multiplier × Public/Private Multiplier (if mismatched) × Power-Differential Dampener

Axis / Move-Type Multiplier

Match typeMultiplierReads as
Axis match + Move-Type match×1.5Super Effective
Axis match + Move-Type mismatch×1.0Effective, unremarkable
Axis mismatch×0.25Weak — "swinging at air"

Public / Private Multiplier (stacks on top, doesn't replace)

SituationMultiplierReads as
Actor-type matches×1.0Normal
Mismatch×0.5The Carpenter v. United States gap — real, citable, never a full miss
Wrong meter entirely (CTP tool vs CDP stat, or reverse)×0.1Barely registers

Power-Differential Dampener

Threat scales with the relative gap between a player's total stack and an opponent's — not absolute tier number. Diminishing, never fully zero, even at maximum differential. Low-tier farming at high player power is intended and safe; play at or near a player's own actual power band stays genuinely dangerous.

3 · Parcel Field Terrain Integration

The Field Model (see Parcel Field Model doc) never touches Box 1 or Box 4. It exclusively feeds the pre-existing Terrain/Context line already visible in every Power Delta breakdown. A parcel's live-computed Effective Value — intrinsic properties + government layers + institutional emission + ward strength + historical memory — is the real source of that number. Rule: Field Model → magnitude only. Combat Formula → identity and type-matching only. They compose, never override.

4 · Amendment Weapon & Modifier Table (27 rows)

5 · Bestiary Type Crosswalk (4 axis lines × 5 tiers)

The Economic line's actor-type shift is the clearest in-game teaching moment for the whole Public/Private mechanic — Loan Office (Tier I) is Private, Treasury Liaison (Tier V) is Public, same axis, same color, different Box 4 entirely.