Guardians of the Universe

A science fiction novel with an enormous worldbuilding scope: wars between civilizations, wars between planets. Think that's the limit of this book's setting? Later on, it ventures beyond the universe.

It may not measure up to Liu Cixin's Three-Body, but its worldbuilding and imagination are still enormous...

No mindless characters, no childish wish fulfillment, and not a power fantasy. This is for readers of hard sci-fi, with interstellar warfare and the cosmos.