"More than megalithic first contact in the tradition of Rama and Ringworld — it's a Big Smart Object story for the 21st century." 

– Seth Dickinson, author of Exordia

"Inworld makes the universe feel enormous again. Manners has built a megastructure of impossible scale and then filled it with ideas big enough to match it — about consciousness, about linguistics, about what it means to be small in the face of infinity. Ferociously intelligent, wildly imaginative, and packed with genuine awe. This is science fiction operating at full altitude."

– Nicholas Binge, author of Dissolution

"Inworld is a sprawling hard sci-fi epic that meets at the intersection of mathematics, linguistics and astrophysics to tell a grand story of stories. It is a book of big ideas and deep philosophising that nevertheless savours character and plot. Manners writes in the best literary tradition of Carl Sagan and Vernor Vinge."

– Mahmud El Sayed, author of The Republic of Memory

"Packed with planet-sized ideas, and gripping from beginning to end, Inworld is a formidable science fiction debut. Fans of Arthur C. Clarke and Cixin Liu will love this." 

– Oliver K. Langmead, Hugo-nominated author of Calypso

"A real treat for sci-fi fans!  Astrophysics, linguistics, cosmology and consciousness are all at play in this mind-expanding tale of alien contact, exploration and out of this universe adventure.”

– Damien Ober, author of Voidverse

"All the makings of a modern science fiction classic. Cosmically ambitious and ceaselessly engaging, Inworld is a rare, stellar work."

– Benedict Anning, author of Atomic Coffin

"Inworld is a science fiction masterpiece! Stranded on an alien megastructure bigger than all the habitable worlds in the galaxy, a group of humans struggle to survive their violent new reality and understand both the aliens who created the place and their nearly incomprehensible rules for staying there. Full of big ideas and an even bigger sense of life's possibilities, Inworld is this decade's most epic science fiction novel."

– Jason Sanford, winner of the Hugo Award for Best Fan Writer and author of Plague Birds, finalist for the Nebula Award and the Philip K. Dick Award

"Like Niven and Pournelle or Andy Weir, Arthur H. Manners uses the audacity of huge ideas to draw in the reader, presenting a hard science fiction novel that makes demands on the reader’s intelligence and willingness. Slowly and inexorably, he urges you to take a step beyond what communication means to humankind now and forward into a new reality. This debut novel pairs strong writing with a genuine understanding of space science."

– Jody Lynn Nye, author of the Strong Arm Tactics series 

"Inworld is an immersive and imaginative novel. Manners deftly melds science and storytelling to portray an expansive future for humanity, full of political complexities, ecological dread, and fantastical alien lifeforms. Readers will be delightfully lost in this universe."

– Laura Cranehill, author of Wife Shaped Bodies