Combat was available on occasion throughout the 1997 game, but was rarely compulsory, with players having the option to kill or arrest replicants, or let them go, which led to multiple endings.

Source: https://screenrant.com/blade-runner-2033-labyrinth-story-setting-characters-gameplay/

Director Ridley Scott’s 2007 final cut gives the most definitive answer by inserting a moment in which Deckard dreams of unicorns, implying that he and Gaff are both replicants who have had the image implanted in their minds.

Source: https://screenrant.com/confusing-scifi-movie-endings/

Its noir plot seems simple: Rick Deckard (Harrison Ford) is sent to track down and kill four androids known as "replicants."

Source: https://www.cbr.com/best-robot-movies-ranked/

K. W. Jeter wrote a series of three novels that continued Deckard's story and introduced other Blade Runners and the original templates for several replicants, including Rachael and Roy Batty.

Source: https://screenrant.com/blade-runner-stories-not-movies-comics-tv-shows/

The first film follows Deckard, a Blade Runner charged with bringing down murderous replicants, synthetic beings created by the Tyrell corporation.

Source: https://www.cbr.com/great-movies-that-are-box-office-failures/