Philip K. Dick

The Ganymede Takeover is a 1967 science fiction novel by Philip K. Dick and Ray Nelson. It is an alien invasion novel, and similar to Dick's earlier solo novel The Game-Players of Titan. Dick later admitted that The Ganymede Takeover was originally going to be a sequel to his Hugo Award-winning alternate history novel …

The Game-Players of Titan is a 1963 science fiction novel by Philip K. Dick.