Poul Anderson: The Chapter Ends: "Look around you, Jorun of Fulkhis. This is Earth. This is the old home of all mankind. You cannot go off and forget it.

Poul Anderson: THE SENSITIVE MAN

Leviathan Wakes: Book 1 of the Expanse (now a Prime Original series)

Poul Anderson: Snowball

Black Amazon of Mars

Caliban's War: Book 2 of the Expanse (now a Prime Original series)

And The Gods Laughed

Nemesis Games: Book 5 of the Expanse (now a Prime Original series)

Valley of Dreams

Traumerei

Abaddon's Gate: Book 3 of the Expanse (now a Prime Original series)

Warrior Of Two Worlds (Unabridged)

Linton Davies: War-Lords of the Moon

Cibola Burn: Book 4 of the Expanse (now a Prime Original series)

The Moon Hoax (Unabridged): optional

Metro 2033: The novels that inspired the bestselling games

Meteor-Men of Mars