Currency is what determines the value of something.
The Currency in Different Games
Like Countries in the real world use different types of money, games in the Zynga universe also use different currencies. However, many of them use coins, which seems to be some-sort of universal money.
| Game | Main | Special | other |
| FarmVille | Coins | FarmCash | none |
| Mafia Wars | USD | Reward Points | Baht, Pesos, and Rubles |
| Treasure Isle | Coins | Island Cash | gems? |
| FrontierVille | Coins | Horseshoes | Wood, Food |
| Cafe World | Coins | CafeCash | none |
| YoVille | Coins | YoCash | none |
| PetVille | Coins | Petcash | none |
| FishVille | Coins | Sand Dollars | none |