This document discusses how game publishers help indie developers tackle the freemium business model. It provides examples of how Chillingo helped increase the daily average revenue per user (DARPU) of one game by 100% during soft launch through adjustments to economies, testing sales and promotions, and global launch efforts including in-game advertising. It also outlines Chillingo's focus on fun, engagement, retention, and providing live services like updates that continued to boost cumulative revenue over time for the game.