A sunsequent book, Settlers of the New Virtual Worlds, co-edited with Erin Hoffman, explored human and property rights in virtual worlds, and highlighted current End User License Agreements . In September 2012, Bethke co-founded Bee Cave Games with Nimai Malle and Jeremy Strauser - a social and mobile game developer focused on the casino sector and makers of Blackjack Casino. ^ Olson, Ryan .