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GURPS Alternate Earths

GURPS Alternate Earths is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand GURPS Alternate Earths rather than just read about it. In short: GURPS Alternate Earths is a GURPS role-playing game supplement by Kenneth Hite, Craig Neumeier, and Michael S. Schiffer, which was published by Steve Jackson Games in 1996.

GURPS Alternate Earths — main illustration
GURPS Alternate Earths — illustration

Key takeaways

  • GURPS Alternate Earths belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect GURPS Alternate Earths to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of GURPS Alternate Earths from memory before moving on to harder problems.

Reference excerpt

GURPS Alternate Earths is a GURPS role-playing game supplement by Kenneth Hite, Craig Neumeier, and Michael S. Schiffer, which was published by Steve Jackson Games in 1996. It presents six alternate histories from the real world, and background material for creating adventures for each of these worlds.

Contents

GURPS Alternate Earths presents six versions of Earth possessing alternate histories from that of our own world, as well as a number of less-detailed alternate settings scattered throughout the book in sidebars. Attention is given to the ways in which agents of the Infinity Patrol presented in GURPS Time Travel and their rivals from the mysterious parallel known as Centrum attempt to influence the course of history in each parallel. There is a sequel volume, GURPS Alternate Earths II, and the concept of the conflict between the Infinity Patrol and Centrum across the many parallel Earths was made central to the Fourth Edition of GURPS as the default setting in the Basic Set and in the supplement GURPS Infinite Worlds.

Dixie Dixie posits an alternate history where the Southern filibuster William Walker, as President of Nicaragua, chose to protect Cornelius Vanderbilt's Accessory Transit Company rather than turn on his tycoon supporter. Without Vanderbilt's opposition to his regime in this timeline, Walker was able to conquer Cuba and make his Nicaragua the most powerful nation in Latin America. During the American Civil War, Walker's ships ran the Union blockade and ensured that Southern troops were well-supplied, leading to their victory over Northern forces and the independence of the Confederate States of America. In turn, the United States allied themselves with Germany and took most of Canada from the Confederacy's British supporters while the Confederates absorbed Mexico and most of Central America. The "current year" in Dixie is 1985, with the world dominated by the U.S.A., the C.S.A., the moribund German Empire, the nascent Russian Republic, and the rapidly modernizing United Republic of India. Technology is somewhat more advanced than at the same date in our world, with personal hovercraft and supersonic transports commonplace, and the presence of nuclear-armed orbital weapons platforms and the juxtaposition of the progressive "Yankees" and the stratified "Southron" society adds to the tension caused by the "Long Drum Roll" (the U.S.A-C.S.A. analogue to the Cold War).

Reich-5 Reich-5 (so named because it was the fifth parallel world discovered by the Infinity Patrol in which Nazi Germany had won World War II) takes as its point of divergence from real history the successful assassination of president-elect Franklin D. Roosevelt by Giuseppe Zangara in 1933. While vice president-elect John Nance Garner attempted to implement Roosevelt's New Deal, he was unable to unify the country. U.S. politics seesawed back and forth between radical left- and right-wing administrations under Henry Wallace and Charles Lindbergh, with the country as a whole mired in isolationism and a continuing Great Depression, while Germany and Japan fought and won World War II, conquering the Allies without American involvement. In 1944, following Japanese attacks against American targets across the Pacific, including Pearl Harbor and the West Coast, Vice President William Dudley Pelley seized control of the nation after the assassination of Republican president Charles Lindbergh; the German invasion of Canada in the following year gave Pelley an excuse to arrogate to himself dictatorial powers. His theft of the 1948 election from Robert Taft (running on a combined Republican/Democratic ticket) prompted a Second American Civil War that was ended by a Nazi invasion of the United States and their development and use of the atomic bomb in 1950 against American cities. The "current year" in Reich-5 is 1995. Greater Germany dominates Europe, Africa, and India, while the U.S.A. is little more than a puppet state of Nazi Germany, with a resistance movement only just recovering from a brutal defeat in the Uprising of '76. The Japanese Empire controls China, Southeastern Asia, Australia, New Zealand, Oceania, the Eastern Soviet Union, and the entire Pacific Rim.

Roma Aeterna Roma Aeterna diverged from real history when Nero Claudius Drusus survived his German campaigns and founded a different Julio-Claudian dynasty than in our history. Their patronage of the Heronian Academy led to a more rapid development of industry, which produces in the Roma Aeterna setting a very different world in which the Third Roman Empire based in Hesperia (roughly corresponding to Mexico and Texas) rules much of North and South America, Northern Africa, Europe, the Middle East, and India. The only other significant political entities in the world are Serica (China) and its North American kingdom Fu-Sang (centered on San Francisco), Taehan (a growing empire based on the Korean Peninsula), and the isolationist South American kingdom of Huaraca. The "current year" in Roma Aeterna is 1878.

… excerpt ends here. Continue reading the full article.

Illustrations

GURPS Alternate Earths: Hite in 2006
Hite in 2006

Worked examples

Example 1 — a first encounter with GURPS Alternate Earths

Start with the simplest possible case. Write down what GURPS Alternate Earths claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to GURPS Alternate Earths before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about GURPS Alternate Earths ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of GURPS Alternate Earths

In research
GURPS Alternate Earths appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses GURPS Alternate Earths in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
GURPS Alternate Earths is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1996 books, Alternate history role-playing games, American Civil War fiction, so understanding it makes those chapters shorter.
In everyday life
Look for GURPS Alternate Earths outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study GURPS Alternate Earths in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what GURPS Alternate Earths means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain GURPS Alternate Earths out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is GURPS Alternate Earths in simple terms?

GURPS Alternate Earths is a GURPS role-playing game supplement by Kenneth Hite, Craig Neumeier, and Michael S. Schiffer, which was published by Steve Jackson Games in 1996.

Why does GURPS Alternate Earths matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study GURPS Alternate Earths?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on GURPS Alternate Earths.

Tags

  • 1996 books
  • Alternate history role-playing games
  • American Civil War fiction
  • Cultural depictions of Charles Lindbergh
  • Cultural depictions of Charles V, Holy Roman Emperor
  • Cultural depictions of Franklin D. Roosevelt
  • Cultural depictions of Joseph Stalin
  • Cultural depictions of Nikola Tesla
  • GURPS books
  • Role-playing game supplements introduced in 1996
  • Works set in 1840
  • Works set in 1878

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