Item rarity system

  1. Player Market vs Game Market (Virtual Economy Gamification Tips)
  2. Player Economy vs Developer Economy (Virtual Economy Gamification Tips)
  3. Tradable vs Sellable (Virtual Economy Gamification Tips)
  4. Economic Environment vs Virtual Environment (Virtual Economy Gamification Tips)
  5. Hard Currency vs Soft Currency (Virtual Economy Gamification Tips)
  6. Pay-to-Win vs Free-to-Play (Virtual Economy Gamification Tips)
  7. Player Trading vs Player Selling (Virtual Economy Gamification Tips)
  8. Tradable Items vs Non-Tradable Items (Virtual Economy Gamification Tips)
  9. Virtual Resources vs Game Resources (Virtual Economy Gamification Tips)
  10. Market Analysis vs Economic Analysis (Virtual Economy Gamification Tips)
  11. Player Spending vs Player Investment (Virtual Economy Gamification Tips)
  12. Premium Currency vs Free Currency (Virtual Economy Gamification Tips)
  13. Tangible Goods vs Intangible Goods (Virtual Economy Gamification Tips)
  14. Virtual Budget vs Game Budget (Virtual Economy Gamification Tips)
  15. Virtual Expenditure vs Digital Expenditure (Virtual Economy Gamification Tips)