From audible.com:

The modern classic of space opera that began with Children of Time continues in this extraordinary novel of humanity's battle for survival on a terraformed planet.

Earth failed. In a desperate bid to escape, the spaceship Enkidu and its captain, Heorest Holt, carried its precious human cargo to a potential new paradise. Generations later, this fragile colony has managed to survive, eking out a hardy existence. Yet life is tough, and much technological knowledge has been lost.

Then strangers appear. They possess unparalleled knowledge and thrilling technology–and they've arrived from another world to help humanity’s colonies. But not all is as it seems, and the price of the strangers' help may be the colony itself.

Children of Memory by Arthur C. Clarke Award-winning author Adrian Tchaikovsky is a far-reaching space opera spanning generations, species and galaxies.

From audible.com:

The astonishing sequel to Children of Time, the award-winning novel of humanity's battle for survival on a terraformed planet.

Thousands of years ago, Earth's terraforming program took to the stars. On the world they called Nod, scientists discovered alien life - but it was their mission to overwrite it with the memory of Earth. Then humanity's great empire fell, and the program's decisions were lost to time.

Aeons later, humanity and its new spider allies detected fragmentary radio signals between the stars. They dispatched an exploration vessel, hoping to find cousins from old Earth.

But those ancient terraformers woke something on Nod better left undisturbed.

And it's been waiting for them.

For more from Adrian Tchaikovsky, check out:
Children of Time

From audible.com:

Adrian Tchaikovksy's critically acclaimed stand-alone novel Children of Time is the epic story of humanity's battle for survival on a terraformed planet.

Who will inherit this new Earth?

The last remnants of the human race left a dying Earth, desperate to find a new home among the stars. Following in the footsteps of their ancestors, they discover the greatest treasure of the past age - a world terraformed and prepared for human life.

But all is not right in this new Eden. In the long years since the planet was abandoned, the work of its architects has borne disastrous fruit. The planet is not waiting for them pristine and unoccupied. New masters have turned it from a refuge into mankind's worst nightmare.

Now two civilizations are on a collision course, both testing the boundaries of what they will do to survive. As the fate of humanity hangs in the balance, who are the true heirs of this new Earth?

From audible.com:

The Arthur C. Clarke award-winning author of Children of Time brings us the second novel in an extraordinary space opera trilogy about humanity on the brink of extinction, and how one man's discovery will save or destroy us all.

After eighty years of fragile peace, the Architects are back, wreaking havoc as they consume entire planets. In the past, Originator artifacts—vestiges of a long-vanished civilization—could save a world from annihilation. This time, the Architects have discovered a way to circumvent these protective relics. Suddenly, no planet is safe.

Facing impending extinction, the Human Colonies are in turmoil. While some believe a unified front is the only way to stop the Architects, others insist humanity should fight alone. And there are those who would seek to benefit from the fractured politics of war—even as the Architects loom ever closer.

Idris, who has spent decades running from the horrors of his past, finds himself thrust back onto the battlefront. As an Intermediary, he could be one of the few to turn the tide of war. With a handful of allies, he searches for a weapon that could push back the Architects and save the galaxy. But to do so, he must return to the nightmarish unspace, where his mind was broken and remade.

What Idris discovers there will change everything.

From audible.com:

From the Arthur C. Clarke award-winning author of Children of Time, this third and final novel in an extraordinary space opera trilogy depicts humanity on the brink of extinction—and reveals how one man's discovery will save or destroy us all.

Lords of Uncreation is the final high-octane installment in Adrian Tchaikovsky's Final Architecture space opera trilogy.

The Final Architecture
Shards of Earth
Eyes of the Void
Lords of Uncreation

From audible.com:

The Arthur C. Clarke award-winning author of Children of Time brings us an extraordinary space opera about humanity on the brink of extinction, and how one man's discovery will save or destroy us all.

The war is over. Its heroes forgotten. Until one chance discovery....

Idris has neither aged nor slept since they remade him in the war. And one of humanity's heroes now scrapes by on a freelance salvage vessel, to avoid the attention of greater powers.

After Earth was destroyed, mankind created a fighting elite to save their species, enhanced humans such as Idris. In the silence of space they could communicate, mind-to-mind, with the enemy. Then their alien aggressors, the Architects, simply disappeared - and Idris and his kind became obsolete.

Now, 50 years later, Idris and his crew have discovered something strange abandoned in space. It's clearly the work of the Architects - but are they returning? And if so, why? Hunted by gangsters, cults and governments, Idris and his crew race across the galaxy hunting for answers. For they now possess something of incalculable value, that many would kill to obtain.