Free-to-play

1. Premium Features vs Paid Features (Virtual Economy Gamification Tips)
2. Free-to-Play vs Pay-to-Play (Player-Centric Gamification Tips)
3. Subscription Model vs Freemium Model (Player-Centric Gamification Tips)
4. Game Demo vs Game Trial (Player-Centric Gamification Tips)
5. Game Economy vs Virtual Economy (Gamification Achievement Systems Tips)
6. Microtransactions vs Macrotransactions (Virtual Economy Gamification Tips)
7. Mobile Gaming vs Console Gaming (Player-Centric Gamification Tips)
8. Pay-to-Win vs Free-to-Play (Virtual Economy Gamification Tips)
9. Subscription Model vs Freemium Model (Virtual Economy Gamification Tips)
10. Virtual Items vs In-Game Items (Gamification Achievement Systems Tips)