41 characters, locations, and items in this world codex.

Characters

Bai Mulin — Slender journalist for the Inner Mongolia Production and Construction Corps who befriends young Wenjie at the logging camp, then betrays her when his
Chang Weisi — PLA major-general who runs the Battle Command Center, recruits Wang Miao into the investigation, and gave Shi Qiang the nickname Da Shi.
Ding Yi — Theoretical physicist, billiards philosopher, Yang Dong's grieving boyfriend — the man who explains to Wang Miao, over a pool table, why the laws of p
Fu Xi — A Three Body NPC dressed all in black who believes the sun is a temperamental god, and that giant pendulums swung in unison can hypnotize him into a l
Keiko Yamasuki — Japanese ETO member glimpsed at meetings of the organization's international leadership — a quiet presence whose larger role is yet to be revealed.
King Wen of Zhou — An NPC in the Three Body VR game's first level — a robed king who tries to predict Trisolaris's chaotic suns by carving the sixty-four hexagrams of th
Lei Zhicheng — Political commissar at Red Coast Base who treats every technical decision as an ideological one and warns Wenjie that pointing the antenna at the sun
Listener 1379 — A lonely Trisolaran officer manning Listening Post 1379 who, in 1979, intercepts Wenjie's signal — and chooses, against orders and against the surviva
Ma Gang — A muscular logger in the Inner Mongolia Production Corps whose chainsaw work in the Greater Khingan Mountains haunts Wenjie's view of what humanity do
Mike Evans — Disinherited son of an oil magnate who hides on a Chinese hillside trying to save a dying species of swallow — and who, after meeting Wenjie in 1977,
Pan Han — Celebrity biologist, founder of the Pastoral China commune, and ETO Adventist whose public crusade against technological progress is a cover for an or
Princeps — The Trisolaran leader who, upon receiving Wenjie's reply and learning of Earth, orders the launch of a thousand-year colonization fleet — and the cons
Qin Shi Huang — The First Emperor of unified Qin, recast as a Three Body NPC who solves the three-body problem in the only way that scales — by ordering thirty millio
Ruan Wen — Wenjie's closest friend at Tsinghua — a Cambridge-educated professor of European art and music who hid Western records and books behind a false wall,
Sha Ruishan — Astronomer at the Miyun radio observatory and one of Wenjie's former students — the man who, at her quiet request, points his telescopes at the sun an
Shao Lin — Ye Zhetai's wife and a physicist in her own right, who saved her own life during the Cultural Revolution by climbing onto the struggle-session stage a
Shen Yufei — Chinese-Japanese applied physicist, Frontiers of Science member, and quiet ETO Redemptionist who plays the Three Body game with religious focus and is
Shi Qiang — Beijing counter-terrorism detective with a chain-smoker's lungs and a peasant's instincts — General Chang's pet bulldog, dragged into a case full of p
Wang Miao — Nanomaterials researcher at the Nanotechnology Research Center whose hobbyist photography starts producing a countdown only he can see — the everyman
Wei Cheng — A reclusive math prodigy married to Shen Yufei who has spent years quietly attacking the three-body problem on a million-yuan workstation in his bedro
Yang Dong — Brilliant superstring theorist, Ye Wenjie's daughter and Ding Yi's girlfriend, whose suicide note — 'Physics has never existed and will never exist' —
Yang Weining — Chief engineer at Red Coast Base and once Ye Zhetai's experimental physics student — the man who recruited Wenjie out of prison, married her, and neve
Ye Wenjie — Astrophysics professor whose father was beaten to death by Red Guards in 1966 — the quiet old woman at Tsinghua who, decades ago at a secret radio ins
Ye Zhetai — Tsinghua physics professor murdered on a struggle-session stage in 1966 for refusing to renounce relativity, the big bang, and the Copenhagen interpre

Locations

Beijing — Capital of China and the present-day stage for Wang Miao's investigation — a vast, modern city in which Cultural Revolution Beijing of 1966 still walk
Greater Khingan Mountains — A long forested mountain range running through Inner Mongolia and Heilongjiang — the place where the Inner Mongolia Production and Construction Corps
Judgment Day — A converted oil tanker owned by Mike Evans, repurposed as the ETO's floating Second Red Coast Base — and, by the end of Book 1, the target of Operatio
Listening Post 1379 — A remote Trisolaran observation tower where Listener 1379 has spent decades alone monitoring deep space — and the place from which the warning Do not
Nanotechnology Research Center — Wang Miao's lab in Beijing where the Flying Blade nanofilament is being developed — a building full of vacuum chambers, nitrogen tanks, and one resear
Radar Peak — A wind-blasted summit in Inner Mongolia at the spine of the Greater Khingan Mountains, chosen for its altitude and isolation as the home of Red Coast
Red Coast Base — Top-secret military installation atop Radar Peak in the Greater Khingan Mountains where, in 1971, humanity sent its first interstellar transmission —
The Three-Body Game World — The full-immersion VR game in which players experience civilization after civilization on a fictional world ruled by three suns — the ETO's recruiting
Trisolaris — The fourth-and-only-surviving planet of the Alpha Centauri triple-star system — homeworld of a civilization that has died and rebuilt itself two hundr
Tsinghua University — China's premier scientific university in northwest Beijing — Wenjie's home both as a student and, decades later, as a quiet retired professor whose pa
Wang Miao's Apartment — A modest Beijing flat with a darkroom off the kitchen — where the countdown first appears on Wang Miao's developed photographs and follows him out of

Items

Earth-Trisolaris Organization — Global underground movement co-founded by Ye Wenjie and Mike Evans, dedicated to welcoming the Trisolaran invasion — and split bitterly between Advent
Flying Blade — A nanoscale filament being developed in Wang Miao's lab — strong enough to slice steel, hair-thin enough to be invisible, and the weapon Da Shi propos
Frontiers of Science — A respected international physics organization that argues science is hitting a fundamental wall — and which serves, secretly, as the ETO's primary re
Red Coast Transmitter — The high-power microwave transmitter at Red Coast Base — the device with which Wenjie, in 1971, used the sun as an amplifier to broadcast humanity's f
Sophons — Sentient proton-sized supercomputers folded out of higher dimensions on Trisolaris and flung to Earth at light speed — the Trisolaran weapon designed
The Three Body Game — Full-immersion VR game distributed by the ETO at threebody.com — a recruiting tool, a religious text, and humanity's first detailed glimpse of how Tri

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