Through his work with Looking Glass Studios, LeBlanc contributed to a number of important video game titles including Ultima Underworld II, System Shock, Flight Unlimited, Terra Nova, and Thief.
[1] After Looking Glass, LeBlanc went to work for Sega, developing artificial intelligence for the Visual Concepts line of sports games.
In 2003, LeBlanc went to work for Mind Control Software, where, with Andrew Leker, he co-developed Oasis, which won an Independent Games Festival award.
MDA is based in part on the Formal Abstract Design Tools for games discussion initiated by Doug Church.
LeBlanc runs a site, 8kindsoffun.com, including the MDA work and his breakdown of "fun" for game design.