No revenue estimate for EPIC — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $2.4M — a different platform, not this one.

Ken Follett's The Pillars of the Earth

12th century, England: In a time of poverty and war, a small town begins the construction of a cathedral to claim safety for its people. In their struggle to survive, destinies intertwine. Based on Ken Follett's world-bestseller ‘The Pillars of the Earth’.