jones_supa writes "Today Epic launched Unreal Engine 4 for game developers. Supported platforms are Windows, OS X, iOS and Android, with desktop Linux coming later. The monetization scheme is unique: anyone can get access to literally everything for a $19/month fee. Epic wants to build a business model that succeeds when UE4 developers succeed. Therefore, part of the deal is that anyone can ship a commercial product with UE4 by paying 5% of their gross revenue resulting from sales to users. This gets them the Unreal Editor in ready-to-run form, and the engine's complete C++ source code hosted on GitHub for collaborative development."