Quest sci-fi books

Unstoppable

Black Sand Baron

Breakaway

Critical Mass

The Game of Gods 2: The Death of Champions - A LitRPG / Gamelit Dystopian Fantasy Novel

Wyvern's Fate

The Ice Fortress

Heavier Than a Mountain

The Hitch Hiker's Guide to the Galaxy -- A Trilogy in Five Parts

Firefly

The Light Fantastic: A Discworld Novel

Foundation and Earth

Empire of Ivory

Here, There Be Dragons (Chronicles of the Imaginarium Geographica, The)

Ordinary Man's War

Master Alvin

Azarinth Healer Book Three

The Complete Hitchhiker's Guide to the Galaxy Boxset: Guide to the Galaxy / The Restaurant at the End of the Universe / Life, the Universe and ... and Thanks for all the Fish / Mostly Harmless

Vainglory: A LitRPG Adventure