Planetary Romance sci-fi books

Ice Planet Holiday: A SciFi Holiday Alien Romance (Ice Planet Barbarians)

Having the Barbarian's Baby: Ice Planet Barbarians: A Slice of Life Short Story

Hammerfall

The Lone Cyborg (Cyborgs on Mars)

The Tenth Artifact

The Left Hand of Darkness

Worlds of Exile and Illusion: Three Complete Novels of the Hainish Series in One Volume—Rocannon's World; Planet of Exile; City of Illusions