三体 THE THREE-BODY PROBLEM

Remembrance of Earth's Past

A journey through Liu Cixin's legendary trilogy that redefined science fiction

Begin the Journey

The Journey Through Time

From the Cultural Revolution to the end of the universe

BOOK ONE

The Three-Body Problem

During China's Cultural Revolution, a secret military project sends signals into space. An alien civilization on the brink of destruction receives the signal and plans to invade Earth.

First Contact ETO Red Coast Base
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Three Body Problem
BOOK TWO

The Dark Forest

Earth faces the approaching Trisolaran fleet. Four Wallfacers are chosen to devise strategies to save humanity. Luo Ji uncovers the dark forest theory—a chilling explanation for the silence of the universe.

Wallfacers Dark Forest Theory Cosmic Sociology
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The Dark Forest
BOOK THREE

Death's End

Half a century after the Doomsday Battle, humanity prospers. But when Cheng Xin becomes the Swordholder, her compassion has cosmic consequences. The universe reveals its darkest secrets.

Dimensional Strike Lightspeed Heat Death
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Death's End

Key Concepts

🌍

The Three-Body Problem

A chaotic system with three suns orbiting unpredictably, causing extreme climate variations on the Trisolaran home world, forcing them to seek a new home.

🌲

Dark Forest Theory

The universe is a dark forest where civilizations hide in silence. Revealing your location means inviting destruction. Survival demands eternal vigilance.

📐

Dimensional Strike

The ultimate weapon: reducing space itself from three dimensions to two. An entire solar system flattened like a painting—beautiful and terrifying.

⚛️

Sophons

Protons unfolded to higher dimensions and inscribed with supercomputers, sent to Earth to sabotage particle physics research and spy on humanity.

⚔️

Wallfacers

Four individuals granted unlimited resources to devise secret plans to save humanity, knowing their thoughts cannot be monitored by sophons.

💫

Lightspeed Travel

The dream of reaching light speed—and the devastating consequences when lightspeed itself becomes a weapon to trap civilizations.

Key Characters

Ye Wenjie

The Messenger

An astrophysicist who makes first contact with the Trisolarans, disillusioned by humanity after witnessing her father's death during the Cultural Revolution.

Luo Ji

The Wallfacer

A cynical sociology professor who becomes a Wallfacer and discovers the dark forest theory, holding the fate of two civilizations in his hands.

Cheng Xin

The Swordholder

An aerospace engineer who becomes humanity's second Swordholder, her compassion and moral struggles shape the fate of the cosmos.

Wade

The Ruthless

A cold, pragmatic leader who believes humanity must advance at any cost. His quote: "Advance! Advance without regard for the consequences!"