Tuf Voyaging (1986) by George R.R. Martin

Tuf Voyaging (1986) by George R.R. Martin: A 'paste-up' novel of stories and novellas published over about a decade, Tuf Voyaging tells of several adventures of Haviland Tuf. Tuf lives several thousand years in the future, during George R.R. Martin's 'Thousand Worlds' universe in which humanity has spread out across the galaxy (that's the Thousand Worlds) after the collapse of its Federal Empire. 

Tuf starts off as a quirky but somewhat unsuccessful freighter captain. Personality-wise, Tuf sometimes seems like a first draft for Varys in A Song of Ice and Fire. However, circumstances detailed here put him in sole control of a 30-km-long seed ship, the last of its kind, built by that Federal Empire's Ecological Engineering Corps.

This seed ship, named Ark, can do just about anything biology-related. Thanks to vast libraries of genetic material, genetic manipulation machines, and other doodads, the Ark can unleash planet-destroying plagues, planet-saving biological miracles, or even a few telepathic cats. Tuf finally has a way to make money. And so he does.

This may be Martin's most traditionally Golden-Age science-fiction work. Tuf is quirky and a fairly solid judge of human character, and the stories themselves are the sort of 'science puzzle' stories made popular by writers that include Isaac Asimov and Arthur C. Clarke. Martin seems to be having a lot of fun with the biological puzzles Haviland Tuf faces, and so too the reader.

Even the discovery of the Ark rests on a puzzle being solved -- and Tuf figuring out how to survive that finding. He will then be confronted by a variety of puzzles on different worlds. The puzzles and the solutions are ingenious. It's all breezy science-fiction fun with a few serious points about over-population, religious mania, and cruelty to animals along the way. And, of course, the dangers of invasive species. Especially when that invasive species is humanity. This would make a fine TV series. Come on, guys! Highly recommended.

Nightflyers (1987) by George R.R. Martin

When bad covers happen...

Nightflyers (1987) by George RR Martin, containing the following stories:

• Nightflyers (1980): Martin's acclaimed novella of horror and first contact was badly mangled by the recent SyFy Channel series, mercifully canceled after one season. Set thousands of years in the future, "Nightflyers" follows the efforts of an interstellar archaeology team to make First Contact with the mysterious Volcryn. The Volcryn fly between the stars at normal spatial velocities, avoiding star systems and faster-than-light travel. Why? And why have they been doing it for at least tens of thousands of years, flying outwards from the Galactic Core? Martin balances cosmic horror, a bit of grue, a sense of wonder, and a keen sense of irony once the final revelations arrive.
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• Override (1973): Enjoyable, minor Corpse-handler story. Martin's walking dead do so with artificial brains in their heads, all under the control of that handler. Yuck!
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• Weekend in a War Zone (1977): Dystopic, bleak satire of corporate outings. Would make a good half-hour Twilight Zone episode if they still made such a thing.
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• And Seven Times Never Kill Man (1975): Another story set in the Thousand Worlds universe shows us aliens vs. humans. And not just any humans, but the horrible sect of humans who are Martin's parody of/commentary on Gordon Dickson's militaristic Dorsai.
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• Nor the Many-Coloured Fires of a Star Ring (1976): The Star Ring was an FTL gateway created by dumping massive amounts of power into a pre-existing spatial rift. But in this story, the rift seems to open on a parallel universe.
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• A Song for Lya (1974): One of Martin's cleverest, most affecting stories. Again set in the Thousand Worlds universe, "A Song for Lya" follows the efforts of a telepathic duo to discover the secrets of a planet of aliens that has lived in peaceful cultural stasis for thousands of years -- and whose attractions now seem to be wooing humans to have brain-eating blobs put on their heads. Yes, it's the most melancholy episode of Futurama ever!!!

Once upon a time, George R.R. Martin was a writer of terrific short stories and novellas. His first novel, written with Lisa Tuttle, was a fix-up of previously published stories, as was a later novel, Tuf Voyaging. 

These stories all come from about two decades or more before Game of Thrones hit the book-stands. Some of them are from different universes Martin created -- the Star Ring universe, the Corpse-handler universe, and the Thousand Worlds of humanity thousands of years in the future. They all make for fine reading. Highly recommended.