UnrealEd

UnrealEd, commonly known as UEd, is a program produced by Epic Games which relies on the Unreal Engine. It is a stand-alone program which allows level designers to create levels for the game that corresponds with the editor. UnrealEd comes in several Unreal-related flavors:

• UnrealEd 1

Used for Unreal and Unreal Tournament until version 420

• UnrealEd 2

Used for Unreal Tournament since version 420

• UnrealEd 3

Used from UT2003 until UT3.

• UT3Ed

Used for UT3.

In addition, modified versions of each (except UEd 1) were licensed to other game developers and used in various games. Each Unreal Engine game comes packaged with its appropriate Editor. No two editors are compatible.

Support for each version of the Editor is supplied by the Unreal Developers' Network (UDN).