0 an online payment of a very small amount of money:
Micropayment systems have made it possible to pay for individual downloads.
With the appearance, and success, of the increasing micropayment economy, this premise is becoming increasingly outdated.
Users (called backers) can pledge money for tasks using micropayment services that open source software developers can pick up and solve to earn the money.
The game will also use the free-to-play and micropayment business model.
E-gold, which allowed transactions as small as one ten-thousandth of a gram of gold, was also the world's only successful micropayment system.
Its games are free to play, although they do use a micropayment system to generate revenue, through in-game item malls.
Over the course of time, it transitioned into its current micropayment model.
These games are free of charge to download and finance themselves via a built-in shop and micropayment system.
Real-world currency micropayments serve to purchase of special currency, exclusively from the game service provider.
