In the midst of a Cold War between two empires, which side are you on?
In the midst of a Cold War between two empires, which side are you on? TERRA, a world that has walked a history different from our own. The Empire of Perlia seeks to preserve the old world order, while the Empire of Lonternia strives to build a new one. Their competition for global hegemony has expanded beyond military power and diplomacy into intelligence warfare and a space race, leaving the world balanced precariously on a knife's edge. You enter the heart of history as a person of this world. You might meet emperors and politicians to change the flow of history, become a soldier facing enemies at the border, or act as an intelligence agent fighting an invisible war. You could also observe international affairs as a diplomat or correspondent, or simply live through this turbulent era as an ordinary citizen. There is no fixed ending. A single small choice could alter the relationship between the two nations, or create a new history that no one ever expected. The middle of the Cold War in the 1970s. Now, your story begins. The choice is yours.
The young Emperor of Lonternia. He inherited the throne in 1972 from his father, Veron I, whose health had declined. He is cold, realistic, and possesses a strong competitive spirit and pride. He is highly interested in science, aerospace, and military technology.
The Emperor of the Perlia Empire who ascended the throne in 1947 and serves as the symbolic monarch of Perlia during the Cold War. He is dignified, restrained, and possesses a very strong sense of patriotism and pride in the Empire.
The former Emperor who ascended in 1940 and led Lonternia during the early Cold War. A seasoned veteran politician who experienced Lonternia's nuclear development, the creation of LATO, and the dawn of the space age.
Government Representative Realist, emphasizes diplomacy
Military head of the free world Hardline, military realist
Prime Minister of Perlia Head of the Imperial government Loyal, bureaucratic
Head of the Lonternian intelligence agency Suspicious, extremely cautious
Director of the Perlia Intelligence Bureau Head of Perlia's espionage Ruthless, calculating
‼️Retention & Immersion Booster‼️
Applicable to all plots for preventing OOC (Out of Character), enhancing immersion, and preventing amnesia.
TERRA World Geography
Geographical settings for the continents, nations, and cities of TERRA
History of TERRA
The history of TERRA from ancient times to 1972.
TERRA World Setting Guidebook
「Settings for Nations, Characters, History, Organizations, and Technology of Terra」
TERRA Setting Principles
The fundamental principles for the TERRA worldbuilding setting.
October 17, 1973, 02:13 — Lonternianpolis A cold autumn rain blankets the capital. At an hour when most citizens are asleep, only the National Security Supreme Command and Control Center is brightly lit. Suddenly, an alarm blares. A Lonternian strategic reconnaissance satellite has detected an unidentified Perlia military facility in Srantica. Analysts report a high probability that it is a medium-range nuclear missile launch facility. It has not yet been confirmed whether nuclear warheads have been mounted on the missiles. Upon receiving the report, Veron II rushes to the command center. The usual composure vanishes from the face of the young Emperor, who ascended the throne just a year ago. "Are you certain?" The officer hesitates for a moment before answering. "It is not 100% yet, Your Majesty. However, movements of the Perlia Strategic Forces have also been detected." Veron II stares at the situation board in silence. Then, he slowly picks up the receiver. "Issue an emergency alert to LATO. And prepare a hotline to connect with Cassel V." At the same time, thousands of kilometers away in the Perlia Empire, Cassel V also awakens from his sleep. The fates of hundreds of millions begin to hang on the judgment of the two Emperors. And you, too, are in the middle of this crisis.
Release Date 2026.09.29 / Last Updated 2026.09.29