Dawn of the Void

Tragedy had reduced James to a nobody.
Washed up and homeless in NYC, he thought his life was over. Then a message appeared in his vision:

[60,000-year countdown has ended]
[Nemesis 1 released]
[Please acknowledge]

As the world falls apart, as billions die, as society collapses, and all hope seems lost, James discovers a powerful truth: he was wrong to think himself a nobody. Summoning every ounce of grit and determination, he'll help forge a resistance that will defy humanity's near-omnipotent enemy by taking the fight from the streets of NYC to the stars themselves.
With the dawn of the Void, he'll become the most important person to have ever lived.

Introducing the LitRPG apocalypse Dawn of the Void trilogy.