Death's End

Early in the crisis, engineer Cheng Xin proposes the Staircase project, run by the cold Thomas Wade: send a human spy to the enemy fleet. Only a brain will fit, and she asks for Yun Tianming's, a dying classmate secretly in love with her. Cheng hibernates and wakes two centuries later, rich and chosen to hold the truce button in Luo Ji's place. Her choices weigh on the fate of humanity and the solar system. Yun returns with fairy tales full of hidden messages. The book jumps millions of years ahead, to the end of the universe itself. In the end, Cheng has to decide what to give back to the universe so it can be reborn.

1. ChangeCheng Xin becomes Jin

   Engineer Cheng Xin, who proposes the Staircase project in book 3, becomes Jin Cheng, a physicist in the Oxford Five. On the show, Jin also inherits the game sessions that belonged to Wang Miao in book 1.

   source ↗
2. ChangeYun Tianming becomes Will

   Yun Tianming, the college classmate in love with Cheng Xin, becomes Will Downing. The show keeps the cancer, the star DX3906 bought as a gift and his place in the Staircase project.

   source ↗
3. ChangeWade arrives two books early

   Thomas Wade, the cold chief of the intelligence agency that runs the Staircase project, is a book 3 character. On the show, Liam Cunningham plays Wade from the first episode on, leading the response to the crisis.

   source ↗