Redeemer of the Dead

Four months ago, the world changed as electronics failed and blue screens started appearing, gifting humanity with abilities, Classes and Skills straight from a game. Caught in Klondike National Park during the apocalypse, John manages to fight his way free and reach Whitehorse. Unfortunately, the System hasn't finished with humanity yet and dungeons begin to appear, bringing with them more powerful, stronger and smarter monsters. Can John and his friends survive and level up?