[10] In July 2005, Sony Interactive obtained sublicensing rights of Unreal Engine 3 for the PS3's Software Development Kit.

[13][14] In 2011, it was announced that the engine would support Adobe Flash Player 11 through the Stage 3D hardware-accelerated APIs and that it was being used in two Wii U games, Batman: Arkham City and Aliens: Colonial Marines.

[21] According to Sweeney, "a great deal of generalization, improvement, and even simplification has been made possible by eliminating legacy code paths and formulating all rendering around fully-general pixel shader programs".

[22] Throughout the lifetime of UE3, significant updates were incorporated,[23] including improved destructible environments, soft body dynamics, large crowd simulation, iOS functionality,[24] Steamworks integration,[25] a real-time global illumination solution,[26] and stereoscopic 3D on Xbox 360 via TriOviz for Games Technology.

However, in November 2009, Epic released a free version of UE3's SDK, called the Unreal Development Kit (UDK), to the general public.

[32] In December 2010, the Unreal Development Kit was updated to include support for creating iOS games and apps,[33] followed by OS X compatibility in the September 2011 release.