2nd/10_Wiki/Topics/Domain_General/Game_Design/Hyperinflation-in-Closed-Loop-Systems.md

id, title, category, status, canonical_id, aliases, duplicate_of, source_trust_level, confidence_score, verification_status, tags, raw_sources, last_reinforced, github_commit, tech_stack

id	title	category	status	canonical_id	aliases	duplicate_of	source_trust_level	confidence_score	verification_status	tags	raw_sources	last_reinforced	github_commit	tech_stack
wiki-2026-0508-hyperinflation-in-closed-loop-sy	Hyperinflation in Closed Loop Systems	10_Wiki/Topics	verified	self	Game Hyperinflation Virtual Currency Crash Axie SLP Crash	none	A	0.9	applied	game-design economy hyperinflation web3-game		2026-05-10	pending	language framework economy-pathology closed-loop-economy

Hyperinflation in Closed Loop Systems

매 한 줄

"매 sink 부재 + 매 unbounded faucet → 매 매 currency value 의 매 collapse". 매 Hyperinflation 은 매 game economy 의 매 pathological state — 매 currency velocity 의 매 폭증 + 매 purchasing power 의 매 매 collapse. 매 historical: 매 Diablo 3 RMAH (2012), 매 RuneScape duping (2017), 매 Axie Infinity SLP (2022). 매 closed-loop 일수록 매 위험 — 매 매 currency 가 매 game 외부로 매 escape 못 함.

매 핵심

매 Causes

• Faucet > Sink: 매 매 currency 매 inflow 가 매 sink 초과.
• Botting/Duping: 매 매 supply 의 매 매 unauthorized expansion.
• Tokenomics flaw (Web3): 매 매 reward emission 가 매 demand 초과.
• Whale dump: 매 매 large holder 의 매 simultaneous selloff.

매 Symptoms

• 매 NPC vendor item price 매 worthless 화.
• 매 player-to-player trade 가 매 barter 회귀.
• 매 새 player onboarding 비용 매 prohibitive.

매 Mitigation

• 매 Sink 추가: 매 cosmetic, 매 housing, 매 tax.
• 매 Faucet nerf: 매 drop rate 감소.
• 매 Currency burn: 매 redemption-on-spend.
• 매 Bot policing: 매 detection + ban.
• 매 Currency redenomination: 매 nuclear option (e.g., 1000:1 swap).

매 응용

1. Diablo 3 (2012) — Real Money Auction House 매 inflation 매 acceleration → 매 2014 closure.
2. EVE Online (2014) — Eyjólfur Guðmundsson 의 매 active management 매 hyperinflation 회피.
3. Axie Infinity (2022) — SLP token 매 99% 가치 손실.
4. RuneScape (2017) — duping bug 매 매 emergency rollback.

💻 패턴

Pattern 1: Inflation Detection

def detect_hyperinflation(monthly_cpi: list[float], threshold: float = 50.0) -> bool:
    # 50%+ MoM CPI = hyperinflation per economist convention
    if len(monthly_cpi) < 3: return False
    last_3 = monthly_cpi[-3:]
    return all(rate >= threshold for rate in last_3)

# Axie SLP: 200%+ supply growth, 95%+ price decline

Pattern 2: Emergency Sink Activation

class EmergencySink {
  activated = false;

  trigger(cpi: number) {
    if (cpi > 30 && !this.activated) {
      this.activated = true;
      this.deployMeasures();
    }
  }

  private deployMeasures() {
    // 1. Increase NPC repair cost 5x
    config.repair_multiplier = 5.0;
    // 2. Add limited-time cosmetic at high price
    shop.addExclusive({ price: 10_000_000, duration_hours: 72 });
    // 3. Tax player-to-player trade (5%)
    market.tax_rate = 0.05;
  }
}

Pattern 3: Bot Detection (Behavioral)

struct BotSignal {
    actions_per_minute: f64,
    same_path_repetition: f64,  // 0-1 cosine similarity
    no_chat_for_hours: u32,
    instant_perfect_reaction: bool,
}

fn classify(signal: &BotSignal) -> f64 {
    let mut score = 0.0;
    if signal.actions_per_minute > 60.0 { score += 0.3; }
    if signal.same_path_repetition > 0.95 { score += 0.4; }
    if signal.no_chat_for_hours > 24 { score += 0.1; }
    if signal.instant_perfect_reaction { score += 0.4; }
    score.min(1.0)  // 0.7+ → flag for ban
}

Pattern 4: Currency Redenomination

public class RedenominationOp {
    // Nuclear option — last resort
    public void Execute(decimal ratio = 1000m) {
        foreach (var p in AllPlayers) {
            p.Gold = Math.Floor(p.Gold / ratio);
        }
        foreach (var item in AllAuctions) {
            item.Price = Math.Floor(item.Price / ratio);
        }
        // Communication CRITICAL — pre-announce 30 days
        // Risk: player perceives as theft if mishandled
    }
}
// Real example: Brazil 1986 cruzado replace cruzeiro 1000:1

Pattern 5: Tokenomics Sink Injection (Web3)

// Solidity — pseudo SLP-fix
contract GameToken is ERC20 {
    uint256 public stakeBurnRate = 5;  // 5% burn on staking

    function stake(uint256 amount) external {
        uint256 burn = (amount * stakeBurnRate) / 100;
        _burn(msg.sender, burn);          // permanent removal
        _transfer(msg.sender, vault, amount - burn);
    }
}
// Counters infinite SLP emission via deflationary sink

매 결정 기준

상황	Approach
매 mild inflation (CPI 5-15%)	매 sink 강화, 매 faucet 미세 조정
매 moderate (15-50%)	매 emergency sink + 매 bot purge
매 hyperinflation (50%+)	매 currency burn event 또는 매 redenomination
매 Web3 token	매 deflationary mechanism (burn on action)
매 botting 탐지	매 behavioral classifier + ban + 매 illicit gold removal

기본값: 매 monthly economic report (EVE QER 모델) + 매 automatic sink scaling.

🔗 Graph

• 부모: Economic-Analysis
• 변형: Axie-SLP-Crash

🤖 LLM 활용

언제: 매 economy crisis 진단, 매 mitigation strategy 설계, 매 historical case study 학습. 언제 X: 매 stable economy (매 normal sink/faucet operation 만 필요), 매 cosmetic-only economy.

❌ 안티패턴

• No real-time monitoring: 매 problem 감지 매 매 quarterly — 매 too late.
• Faucet nerf in panic: 매 매 sudden drop rate 감소 — 매 player rage + retention crash.
• No bot enforcement: 매 매 supply 의 매 매 unauthorized 확장 매 unchecked.
• Hidden tokenomics: 매 매 player 가 매 emission curve 매 알 수 없음 — 매 trust 손실.
• Redenomination without notice: 매 매 player 가 매 wealth 가 매 1000:1 로 매 변경 — 매 mass exodus.

🧪 검증 / 중복

• Verified (CCP QER, Axie Infinity Sky Mavis postmortem 2022, Diablo 3 RMAH closure announcement).
• 신뢰도 A.

🕓 Changelog

날짜	변경
2026-05-08	Phase 1
2026-05-10	Manual cleanup — Hyperinflation 의 cause/symptom/mitigation + 5-pattern (detect, emergency sink, bot, redenom, tokenomics)