Now, in a new update from developer Rovio (known for the Angry Birds games), the ... on YouTube Sonic Rumble will be a free-to-play battle royale game where 32 players collect rings in Fall ...
These games were free-to-play, using microtransactions to generate revenue. Meanwhile, Angry Birds was still a paid game ($0.99 per download). Rovio tried to adapt by introducing freemium elements ...