Lucifer's Hammer Larry Niven Lucifer's Hammer Larry Niven, Jerry Pournelle · 1983 First published 13 years earlier Save Continue from here
Inherit the Stars James P. Hogan Inherit the Stars James P. Hogan · 1977 First published 19 years earlier Save Continue from here
Babel-17 Samuel R. Delany Babel-17 Samuel R. Delany · 1978 First published 18 years earlier Save Continue from here
Deathworld 1 Harry Harrison Deathworld 1 Harry Harrison · 1983 First published 13 years earlier Save Continue from here
