I’ve had a few questions on how to get Encore CS6 installed . Encore is part of the Premiere CS6 Family installer. You need to CLICK More Information Premiere CC download on Creative Cloud and you’ll see a drop down menu under “In this Version” and here you can get to CS6 Premiere. Encore is in that installer. You need to install it then uninstall it and uncheck Encore in the list and it will remain on your system. ROYAL PAIN – I agree 100% but its the current way to get it installed.
There’s also a KB article here – http://helpx.adobe.com/creative-cloud/kb/download-previous-versions-creative-applications.html