Killjoys and Dark Matter have been renewed for third seasons, the NBCUniversal -owned cable network announced Thursday. Killjoys, from. Dark Matter and Killjoys have been renewed for Season 3 on Syfy ahead of their Season 2 finales. Have no fear, Dark Matter returns in June. In the meantime, catch up with the greatest moments from the first two seasons. Friday, June 9 at 8/7c. Watch Now. Dark Matter has been renewed for a third season and will be returning in Programs like “ Dark Matter ” & “ Killjoys ” are great sci-fi programs that give the viewer. Syfy TV shows: canceled or renewed? Bitten, Channel Zero, Childhood's End, Continuum, Dark Matter, Defiance, Dominion, The Expanse, Haven, Helix, Hunters, Incorporated, Killjoys, Lost Girl, The Magicians, Olympus. Yes, that's right, it's the Dark Matter season finale. least fans of the Syfy series can be content in knowing Dark Matter was renewed for Season 3. already watch Killjoys, I recommend trying out the first two seasons on Syfy.