Achievement tracking

1. Game Levels vs Player Levels (Gamification Player Progression Tips)
2. Player Abilities vs Player Powers (Gamification Player Progression Tips)
3. Progression System vs Reward System (Gamification Achievement Systems Tips)
4. Challenges vs Quests (Player-Centric Gamification Tips)
5. Learning Objectives vs Learning Outcomes (Gamification-Based Learning Tips)
6. Player Goals vs Player Missions (Gamification Player Progression Tips)
7. Game Design vs Game Mechanics (Gamification Achievement Systems Tips)
8. Personal Progress vs Comparative Progress (Gamification Player Progression Tips)
9. Replay Value vs End Game Content (Player-Centric Gamification Tips)