Axie Infinity
Harmful
Addictive design
Play-to-earn, crypto and NFT gamesReal-money trading and token exchangesVirtual currency (gems, coins, credits)Limited-time offers and FOMOCollect-them-all pressure
All games
3 games
Candy Crush Saga
CautionFree
Addictive design
Free-to-play with in-app purchasesAd-supported (free with ads)Virtual currency (gems, coins, credits)Energy and wait timersLimited-time offers and FOMOManufactured scarcity and grind+4
FarmVille
CautionFree
Addictive design
Free-to-play with in-app purchasesAd-supported (free with ads)Virtual currency (gems, coins, credits)Energy and wait timersLimited-time offers and FOMOSocial pressure (gifting, guilds, asking friends)+3