Unreal Engine is the world’s most open and advanced real-time 3D creation tool. Continuously evolving to serve not only its original purpose as a state-of-the-art game engine, today it gives creators across industries the freedom and control to deliver cutting-edge … … This should be your intention too, as a user, to fully evaluate Unreal Tournament 3 without restrictions and then decide. Depending on how you intend to use Unreal Engine, you can choose from a number of licensing options. If You do not agree to the terms of this Agreement, You may not use the UDK. It governs your use of the Unreal Engine, and also describes your rights and obligations when you create projects using the engine. 1. The purpose of this license is to allow You to use the Unreal Engine 3 UDK and any updates thereto provided by Epic (the “UDK”) on the terms set forth below. If you are keeping the software and want to use it longer than its trial time, we strongly encourage you purchasing the license key from Unreal official website. Custom Games License. “Custom License” means any agreement between you and Epic, or any sublicensor authorized by Epic, other than this Agreement or any amendment to this Agreement, under which you are granted a license to use the Unreal® Engine to develop one or more product(s), other than the Unreal® Creator EULA. Third Party Software. The Unreal Engine E nd User License Agreement for Creators is a legal document that you’re agreeing to when you choose one of two standard ways to sign up for the Unreal Engine.