Jon Jacobs and Entropia Universe are discussed in this VentureBeat article on Virtual Reality: http://venturebeat.com/2016/05/17/the-president-of-virtual-reality-says-he-can-create-3-million-jobs-in-vr/
To play Entropia Universe you need a user Account and a Windows PC with the Entropia Universe client installed.
Your email and a password is all that is needed.
You will find Download options after Account creation.
Need a fresh Download? – Go get the Entropia Universe Installer.
You can create your free account while the installer downloads game content.