Sequels and Spin-offs
Nolan wrote two sequels, Logan's World and Logan's Search, published after the film's release. There is also a novelette, Logan's Return, that has been published as an e-book. Two other novels, Logan's Journey (written with Paul McComas) and Logan Falls (written with Jason V. Brock), have been written, but not published.
Logan's World deals with events following Logan's returning to Earth, amidst the survivors and ruins of the system he escaped in the first novel, while Logan's Search deals with Logan going to an alternate reality (with the assistance of aliens) to once again stop the government system he escaped in the first novel, albeit with some minor changes.
Read more about this topic: Logan's Run