In order to install the Blender plugin, you need to be running Blender 2.8 or higher.
Please refer to the latest Blender plugin release notes for the installer. You do not need to unzip the file once it has been downloaded.
Installing the plugin
In Blender go to Edit -> Preferences
In Preferences go to Add-ons > Install
Select the downloaded zip file in the opened file browser and install it
Enabling the plugin
Enable “Rokoko Studio Live for Blender” by checking the checkbox next to it