Currency conversion

1. Game Localization vs Game Internationalization (Player-Centric Gamification Tips)
2. Exchange Rate vs Conversion Rate (Virtual Economy Gamification Tips)
3. Direct Vs. Indirect Currency Quotes (Triangular Arbitrage Clarity)
4. Barter System vs Trading System (Virtual Economy Gamification Tips)
5. Tradable Items vs Non-Tradable Items (Virtual Economy Gamification Tips)
6. Profit and Loss Gotchas (Hidden Dangers)