Unity Game Development Tools Now Free

The fee previously associated with publishing games created on Unity is now waived for those making less than $100,000 in the previous fiscal year.

Unity CEO David Helgason explains:

Today, we’re taking another step on this long road: as of right now, independent Unity developers will be able to deploy their games to Android and iOS platforms completely free of charge. Update Unity and you will find Android and iOS build options (previously basic add-ons) ready and waiting for you to use.

Official announcement from Unity