---
id: wiki-2026-0508-숨겨진-스탯-hidden-stats
title: 숨겨진 스탯 (Hidden Stats)
category: 10_Wiki/Topics
status: verified
canonical_id: self
aliases: [Hidden Stats, Concealed Attributes, Internal Modifiers, Crit-Roll Stats]
duplicate_of: none
source_trust_level: A
confidence_score: 0.85
verification_status: applied
tags: [game-design, rpg, mechanics, balance, transparency]
raw_sources: []
last_reinforced: 2026-05-10
github_commit: pending
tech_stack:
  language: typescript
  framework: game-systems
---

# 숨겨진 스탯 (Hidden Stats)

## 매 한 줄
> **"매 보이지 않는 number 가 매 visible 결과 의 형성"**. 매 hidden stats 는 player 에게 직접 노출 되지 않는 internal modifier — 매 luck floor, 매 individual values (Pokémon IV), 매 hidden affinity (Persona Social Link) 의 형태로 game depth 의 추가, but 매 transparency vs depth 의 균형 의 실패 시 매 player frustration 의 main source.

## 매 핵심

### 매 정의
- **Hidden stat**: 매 game state 에 존재 but UI 에 직접 표시 되지 않는 numeric attribute.
- **Visible stat**: ATK, HP, Speed 등 매 player 에 명시.
- **Derived display**: damage = f(ATK, DEF, hidden_crit, RNG) — 매 player 가 결과 만 봄.

### 매 사용 사례 (전형)
- **Pokémon**: IV (0–31), EV, Nature 의 hidden multiplier.
- **Diablo / PoE**: monster pack-size variance, magic-find hidden roll.
- **XCOM**: "scamming" 방지 의 RNG seed 의 hidden lock.
- **Persona / Fire Emblem**: Social Link / Support 의 internal threshold.
- **Souls 시리즈**: poise, hyperarmor frame-window 의 unlisted.
- **Dwarf Fortress**: 매 모든 stat 의 hidden 의 default — 매 reputation 의 parametric.

### 매 design rationale
1. **Depth without overload**: UI 의 cluttering 회피.
2. **Replayability**: roll variance → 매 2번째 playthrough 의 다른 경험.
3. **Mystery as gameplay**: discovery 의 reward.
4. **Anti-min-max**: optimization 의 ceiling 의 unclear.

### 매 dark side
1. **Perceived unfairness**: "매 같은 stat 인데 왜 졌지?".
2. **Wiki dependency**: 매 datamining 의 force.
3. **Tutorial 의 confusion**: "매 왜 이번에는 효과 가 다르지?".

### 매 응용 (system 설계)
1. Pity timer (gacha) — hidden累積 카운터.
2. Difficulty rubber-banding — 매 hidden adaptive difficulty.
3. Drop rate boost — first-clear bonus.
4. Combo/streak modifier — recent-action window.

## 💻 패턴

### Pattern 1 — IV system (Pokémon-like)
```typescript
interface CreatureStats {
  baseHP: number; baseATK: number; baseDEF: number;
  iv: { hp: number; atk: number; def: number };  // 0–31, hidden
  ev: { hp: number; atk: number; def: number };  // 0–252, hidden until trained
  nature: Nature;                                 // multiplier ±10%
}

function effectiveHP(c: CreatureStats, level: number): number {
  return Math.floor(((2 * c.baseHP + c.iv.hp + Math.floor(c.ev.hp / 4)) * level) / 100) + level + 10;
}

// Player sees only effectiveHP — IVs leaked via "Hyper Trainer" or judge-NPC.
```

### Pattern 2 — Pity timer (gacha)
```typescript
class PitySystem {
  private pulls = 0;          // hidden
  private softPity = 75;
  private hardPity = 90;

  pull(baseRate = 0.006): boolean {
    this.pulls++;
    let rate = baseRate;
    if (this.pulls >= this.softPity) rate += 0.06 * (this.pulls - this.softPity);
    if (this.pulls >= this.hardPity) rate = 1;
    if (Math.random() < rate) { this.pulls = 0; return true; }
    return false;
  }
}
```

### Pattern 3 — Hidden affinity (Persona Social Link)
```typescript
interface Bond {
  rank: number;            // visible 1–10
  exp:  number;            // hidden 0–999, threshold per rank
  affinity: number;        // hidden multiplier 0.5..1.5
}

function gainBond(b: Bond, action: ActionTag): void {
  const base = TABLE[action] ?? 1;          // hidden table
  b.exp += Math.floor(base * b.affinity);
  if (b.exp >= NEXT_RANK[b.rank]) { b.rank++; b.exp = 0; }
}
```

### Pattern 4 — Crit-roll with hidden floor
```typescript
function damageRoll(atk: number, def: number, hiddenLuck = 0): number {
  const base = Math.max(1, atk - def);
  const variance = 0.85 + Math.random() * 0.30;     // 0.85..1.15
  const luckyRoll = Math.random() < (0.05 + hiddenLuck);
  return Math.floor(base * variance * (luckyRoll ? 2 : 1));
}
```

### Pattern 5 — Adaptive difficulty (DDA)
```typescript
class HiddenDDA {
  private playerSkill = 0.5;  // 0..1, hidden
  recordOutcome(playerWon: boolean) {
    this.playerSkill = this.playerSkill * 0.9 + (playerWon ? 1 : 0) * 0.1;
  }
  enemyHpScale(): number { return 0.7 + 0.6 * this.playerSkill; }
}
```

### Pattern 6 — Loot magic-find
```typescript
function rollItem(baseTable: ItemDrop[], hiddenMF = 0): ItemDrop | null {
  const roll = Math.random() * (1 + hiddenMF);
  let acc = 0;
  for (const item of baseTable) { acc += item.chance; if (roll <= acc) return item; }
  return null;
}
// Player sees an item — never sees rolled value.
```

### Pattern 7 — Telemetry (debugging hidden stats)
```typescript
function logHidden(event: string, payload: Record<string, unknown>) {
  if (DEBUG_HIDDEN) console.table(payload);   // dev-only build flag
  analytics.send(event, payload);              // server-side, never to client UI
}
```

## 매 결정 기준
| 상황 | Hidden? | Reason |
|---|---|---|
| Combat damage formula | Hidden | Mystery + variance |
| Equipment ATK number | Visible | Optimization core |
| Pity counter | Optional reveal (post-9.0) | 매 player goodwill |
| Difficulty modifier | Hidden | Anti-gaming |
| RNG seed | Hidden (often) | Anti-scumming |

**기본값**: 매 visible if player decision-relevant; 매 hidden if narrative-immersion or replay variance.

## 🔗 Graph
- 부모: [[게이미피케이션]] · [[Game Balance]]
- 변형: [[Pity System]] · [[Adaptive Difficulty]] · [[IV System]]
- 응용: [[Gacha Mechanics]] · [[Persona Social Link]]
- Adjacent: [[데이터_기반_밸런싱(Data-Driven_Balancing)]] · [[RNG Design]]

## 🤖 LLM 활용
**언제**: 매 hidden-stat schema 의 design review, 매 telemetry event 의 schema generation.
**언제 X**: 매 player-facing wiki 의 spoiler — 매 designer intent 의 위반.

## ❌ 안티패턴
- **Hidden + no telemetry**: 매 balance 의 검증 불가능.
- **Total hidden**: 매 player agency 의 박탈. 매 2-3 visible "anchors" 의 필요.
- **Late reveal as patch**: 매 hidden 의 UI 노출 의 sudden 변경 — 매 trust 의 destruction.
- **Hidden + RNG-stack**: 매 chains 의 perceived unfair (e.g. hidden crit × hidden dodge × hidden block).

## 🧪 검증 / 중복
- Verified (Bulbapedia IV docs; Genshin Impact pity datamine; Persona 5 Royal social link tables).
- 신뢰도 A−.

## 🕓 Changelog
| 날짜 | 변경 |
|---|---|
| 2026-05-08 | Phase 1 |
| 2026-05-10 | Manual cleanup — IV/Pity/DDA pattern set |
