If you loved the far-reaching ambitions and the interplay between secretive organizations and technological mysteries in Cosmonaut Keep, you'll be drawn into Revelation Space. Reynolds expertly crafts a galaxy-spanning plot full of enigmatic alien technologies, shifting political allegiances, and grand-scale intrigue, all anchored by characters whose goals ripple across civilizations.

If you were fascinated by the deep dive into alien cultures and the subtle contrasts between human and non-human societies in Cosmonaut Keep, The Dispossessed will captivate you. Le Guin's worldbuilding presents two radically different civilizations—Anarres and Urras—and follows Shevek as he navigates their political and philosophical complexities, challenging your assumptions about freedom and belonging.

If you enjoyed the barrage of big ideas and the speculative examination of humanity's future in Cosmonaut Keep, Accelerando is a must-read. Stross's novel is a whirlwind of technological, social, and philosophical concepts, following the Macx family across generations as they navigate accelerating change, AI, and posthuman challenges.

If you were caught up by the intricate plotting and the clear, high-stakes objectives at the heart of Cosmonaut Keep, you'll love The Quantum Thief. Follow master thief Jean le Flambeur as he is broken out of prison by the enigmatic Mieli, setting off a series of heists and puzzles in a dazzling post-human solar system, where every plan has layers of deception.

If you appreciated the ethically ambiguous heroes and the interplay of personal motives and grand politics in Cosmonaut Keep, The Player of Games will resonate with you. Watch as Jernau Morat Gurgeh, a celebrated game player from the Culture, is drawn into a high-stakes contest on an alien world—where every move has political and personal consequences, and the distinction between hero and antihero blurs.