With over 30 years experience, Dallas is a veteran of the video gaming industry. He published his first game, The Quest, in 1983, and a few years later co-founded the Austin studio of Origin Systems with Robert and Richard Garriott. At Origin, he Produced/Executive Produced 30+ original games, including such best-sellers as the Ultima and Wing Commander series. Dallas became the General Manger of the Origin studio after its acquisition by Electronic Arts (EA) in 1992.

In 1996, Dallas took an extended sabbatical from the video gaming industry to study the growing convergence of the cognitive, behavioral, emotional, social, relational, and neural sciences and the practical application of those sciences to personal and group happiness and well-being. This included a year at the University of Texas in San Antonio in the Honors College Psychology Department focusing on research studies in the emotional and social sciences. During this period, Dallas developed the Habits of Happiness life coaching material.

In 2009, Dallas co-founded Portalarium Inc. with his former Origin Systems partners, Richard Garriott and Fred Schmidt, to develop and publish online games and virtual worlds that foster people coming together for shared play, good will, learning, and community.

With Richard “Lord British” Garriott’s Shroud of the Avatar, Portalarium has one of the highest crowdfunded video games ever. Starting with a Kickstarter campaign in March 2013, Portalarium raised $2M in 30 days, and has raised over $12M total through ongoing crowdfunding efforts.