A) Build a sweet game engine for exploring and discovering landscapes, topologies, biomes, plants and animal species, etc. Maybe even hunting and survival?
B) Take on the EA Sports (it's in the game) model and update the game with only minor changes to trails and other recent events, but use the margins to fund the park service!
C) Help incorporate trail mapping and maintenance into the engine, so people can have fun taking the game back to reality
D) Release expansions with new areas to help grow the platform, but also teach people about the various locales
E) Over time, watch how parts of our earth change, how we impact it, and use the game engine as a solid digital archive