Foreign over 12 years, Lantz taught game design at New York University"s Interactive Telecommunications Program. He has also taught at the School of Visual Arts and Parsons School of Design. His writings on games, technology, and culture have appeared in a variety of publications.
In 2012, The New York Times referred to Lantz as a "reigning genius of the mysteries of games" following his design of iPhone puzzle game Drop7.
In 2005 he co-founded area/code, a New York based developer that created cross-media, location-based, and social network games. In 2011 area/code was acquired by Zynga and became Zynga New New York
Lantz has worked in the field of game development for the past 20 years. Before starting area/code, he worked on a wide variety of games as the Director of Game Design at Gamelab, Lead Game Designer at People’s & Company, and Creative Director at R/Georgia Interactive.
In 2012, Lantz contributed an interview to the Critical Path Project.