The System Apocalypse Books 1-3

"The world ends in a slew of blue notification boxes, bringing with it a game-like existence including monsters and Classes. Now, John has to make his way from Kluane National Park in the Yukon to Whitehorse through monster infested forests. But, that's not enough; because he'll need to help rebuild civilization itself around the System, aliens and monsters. And, as always, humanity will be its own greatest enemy." -- Amazon