In 1993, Hollis joined Origin Systems, where he was responsible for creating games for Electronic Arts' Jane's Combat Simulations brand.
In 1996, GameSpot named him as the number five in their listing of the Most Influential People in Computer Gaming, "honored for helping to bring back serious flight simulations that don't alienate beginners.
Hollis has won a total of thirteen SCCA Solo national championships, and is an instructor for the Evolution Performance Driving School.
An avid track day enthusiast in the One Lap CRX, he instructs at a variety of road courses in Texas.
Beginning in 2017, Hollis served as crew chief for American Honda's associates race team in 24-hour+ events, with multiple class wins and overall podium finishes.