After flying the drone camera around South Lake Tahoe and the surrounding mountains, someone needs to get going on ground based adventure games: riding a dirt bike, a jeep, riding a horse, hiking. Maybe re-do Microsoft Train Simulator.
Imagine Rockstar using Bing data to create it’s cities for GTA!. 
I was thinking a city builder, but you have the whole world to build in.
An off road vehicle could start out as simple as a Cessna with no wings. Don’t forget ship simulator.