Tiered rewards

1. Player Rewards vs Player Achievements (Gamification Player Progression Tips)
2. Gameplay Evolution vs Player Evolution (Gamification Player Progression Tips)
3. Game Success vs Player Success (Gamification Player Progression Tips)
4. Player Participation vs Player Contribution (Gamification Achievement Systems Tips)
5. Player Effort vs Player Reward (Gamification Player Progression Tips)
6. Skill Progression vs Level Progression (Gamification Achievement Systems Tips)
7. Active Achievements vs Passive Achievements (Gamification Achievement Systems Tips)
8. Power-Ups vs Boosters (Player-Centric Gamification Tips)
9. Player Stages vs Game Stages (Gamification Player Progression Tips)
10. Player Skills vs Player Cap (Gamification Achievement Systems Tips)
11. Virtual Items vs In-Game Items (Gamification Achievement Systems Tips)
12. Game Tasks vs Game Objectives (Gamification Achievement Systems Tips)
13. Game Difficulty vs Challenge Difficulty (Gamification Achievement Systems Tips)
14. Game Design vs Game Mechanics (Gamification Achievement Systems Tips)
15. Player Achievement vs Player Advancement (Gamification Player Progression Tips)
16. Market Economy vs Virtual Economy (Virtual Economy Gamification Tips)
17. Player Investment vs Player Commitment (Gamification Achievement Systems Tips)
18. Player Progression vs Player Development (Gamification Achievement Systems Tips)
19. Game Rewards vs Game Bonuses (Gamification Achievement Systems Tips)
20. Game Progression vs Game Advancement (Gamification Achievement Systems Tips)
21. Progression System vs Reward System (Gamification Achievement Systems Tips)
22. Player Challenges vs Game Challenges (Gamification Player Progression Tips)
23. Player Challenges vs Player Objectives (Gamification Player Progression Tips)