Leaderboard system

1. Gameplay Achievements vs Social Achievements (Gamification Achievement Systems Tips)
2. Player Interaction vs Player Connectivity (Gamification Achievement Systems Tips)
3. Player Rankings vs Game Rankings (Gamification Player Progression Tips)
4. Game Levels vs Player Levels (Gamification Player Progression Tips)
5. Social Gamification vs Individual Gamification (Player-Centric Gamification Tips)
6. Game Rewards vs Game Bonuses (Gamification Achievement Systems Tips)
7. Game Scores vs Player Scores (Gamification Achievement Systems Tips)
8. Personal Progress vs Comparative Progress (Gamification Player Progression Tips)
9. Player Abilities vs Player Powers (Gamification Player Progression Tips)
10. Player Participation vs Player Contribution (Gamification Achievement Systems Tips)
11. Player Targets vs Player Goals (Gamification Player Progression Tips)
12. Points vs Experience Points (XP) (Gamification Achievement Systems Tips)