Create personalized experiences

1. Game Completion vs Player Completion (Gamification Player Progression Tips)
2. Game Design vs Game Mechanics (Gamification Achievement Systems Tips)
3. Player-Centric Design vs User-Centric Design (Player-Centric Gamification Tips)
4. Player Goals vs Game Goals (Gamification Achievement Systems Tips)
5. User Generated Content vs Developer Generated Content (Player-Centric Gamification Tips)