Action, adventure, and con games in outer space!
From the point of view of his long-suffering robot Sasha, the comic adventures of Rex Nihilo, shortly after he wins an APPLE -- Alien Planet Perplexingly Like Earth -- in a card game. And discovers it comes with a lien of over a billion credits.
His exploits attempting to save him from the debtors' prison of the galaxy include a forest moon that has about one tree, a Knight of Chaotic Equilibrium, a rebellion against the Malarchy, the question of a planet being blown up, an inflitration that goes extremely well, a bounty hunter, many rumors of a cloaking device, and more.
Lots of fun allusions to other SF works. Star Wars most distinctly, with Dune and The Hitchhiker's Guide to the Galaxy also notable.