Mass Effect III included its own multiplayer micro-transactions, and that model seems a likely one for Ubisoft to emulate.

FORBES: 'Assassin's Creed III' Includes Micro-Transactions, Ubisoft Applies Free-To-Play Model To Retail Games

While competitors are turning more massively multiplayer online (MMO) games over to the free-to-play business model, Blizzard continues to find innovative ways to get its players to invest more money in its franchises.

FORBES: Connect