Barry N. Malzberg 
Gamesman [EPUB ebook] 

A staggering vision of Earth in the not-so-distant future. . .In a controlled and mechanical world, the only reality is fear and killing boredom. The only escape from mind-blowing monotony is the Game, with predictable rules of stimulus and response. And if you pit yourself against the Games Master, you may lose your last vestige of sanity. Or your life!’There are perhaps a dozen genius writers in this genre and Barry is at least eight of them’ – Harlan Ellison