[participant in the Royal Road Writathon challenge]

Andy has little to live for and even less fucks to give. When at the end of his rope, a stranger offers him a deal to enter a competition with life and deaths stakes in a series of games against other gamers, he doesn't hesitate to accept. After all the prize for winning is enough to turn everything around for him.
Authors note - WARNING, spoilers ahead:
The first game played is a hardcore engineering focused space survival. So stay away, if that's not your sort of thing.