6. Contributing Your Own Content to Crytek Services; License Grant to Crytek and Others
In exchange for Crytek enabling your contribution of Content, when you contribute Content to an Crytek Service, you expressly grant to Crytek a non-exclusive, perpetual, worldwide, complete and irrevocable right to quote, re-post, use, reproduce, modify, create derivative works from, syndicate, license, print, sublicense, distribute, transmit, broadcast, and otherwise communicate, and publicly display and perform the Content, or any portion thereof, in any manner or form and in any medium or forum, whether now known or hereafter devised, without notice, payment or attribution of any kind to you or any third party. You grant Crytek all licenses, consents and clearances to enable Crytek to use such Content for such purposes. You waive, and agree not to assert any moral or similar rights you may have in such Content.
In short: Does the developer own the intellectual property rights to a game made with CryEngine 3?