PRINCIPIA: Master of Science

PRINCIPIA: Master of Science

tomeapp · September 9, 2016 · Turn-Based Tactics, Political Sim, Education, Immersive Sim, Diplomacy

Buy PRINCIPIA: Master of Science from Steam at $1.99 — the cheapest of 1 store we compare.

PC
Mostly Positive71% · 317
Best price 75 All-time low
$1.99-80%
$9.99⭐ lowest tracked
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Where to buy PRINCIPIA: Master of Science — official stores

Steam
Steam
Standard Edition · Steam
-80%
$1.99
$9.99
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PRINCIPIA: Master of Science price by region

PRINCIPIA: Master of Science costs £1.39 in the United Kingdom, $1.99 in the United States, €1.99 in Europe (EUR), CA$2.19 in Canada, NZ$2.39 in New Zealand, A$2.90 in Australia, R$3.99 in Brazil, $6.99 in Georgia (USD) and zł7.19 in Poland right now.

Cheapest PRINCIPIA: Master of Science offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
United Kingdom £1.39 −80% £1.39 — 1
United Statesyour region $1.99 −80% $1.99 — 1
Europe (EUR) €1.99 −80% €1.99 — 1
Canada CA$2.19 −80% CA$2.19 — 1
New Zealand NZ$2.39 −80% NZ$2.39 — 1
Australia A$2.90 −80% A$2.90 — 1
Brazil R$3.99 −80% R$3.99 — 1
Georgia (USD) $6.99 $6.99 — 1
Poland zł7.19 zł7.19 — 1

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Screenshots

About PRINCIPIA: Master of Science


Principia: Master of Science is a simulation game with the theme of European science in the 17th century.

Choose one of 12 real scientists from the era of Isaac Newton and proceed with your research.
There are six research topics: "Astronomy", "Physics", "Thermodynamics", "Biology", "Optics", "Mathematics".
Choose one topic (or more), perform experiments, make discoveries and submit your findings to the Royal Society of Sciences.
You can even belittle your rival scientists.

Fill and complete your own encyclopedia of inventions such as the "Pendulum clock" or "Reflecting telescope", or sketches like "Enlarged view of a cork" or "Enlarged view of a flea"!

It is a time when even the term "Science" did not exist.
Who can be the master of science?

Isaac Newton (1642〜1727)


A British physicist and mathematician. He is hailed as one of the Three Great Mathematicians. His first great discovery (the spectrum of light) was finding that white light was an amalgam of monochromatic light. Next, using his Universal Law of Gravitation, he successfully mathematically proved that planets move along elliptical orbits. The significance of this was explaining the movement of celestial and terrestial bodies under one law. The manuscript of his collective theories, 'Principia', took the world by storm, and Newton went on to obtain immutable fame. In 1705 he was knighted and known henceforth as 'Sir Isaac Newton'

Renowned invention: Newtonian telescope

Christiaan Huygens (1629〜1695)


A Dutch physicist and astronomer. His father was a government official affording him the highest standard of education. In 1655 he conceptualised a method of polishing lenses, which he demonstrated in action with the production of a high fidelity refracting telescope. Huygens valued quantitative observation leading him to invent the 'pendulum clock' in 1656, and the 'minimeter', capable of making measurements accurate within seconds, increasing the precision of observations. In the field of optics he opposed Newton's particle theory of light, asserting that it was instead a wave, but he went unacknowledged.

Renowned invention: Pendulum Clock

Gottfried Leibniz (1646〜1716)


A German mathematician and politician. It was said that he demonstrated talent in mathematics from a young age and was unparalleled in mental arithmetic. He advanced Pascal's calculator design, conceptualising one capable of multiplication and division. Additionally, he developed infinitesimal calculus during the same period as Newton did. There was severe discord between him and Newton et al. over priority rights for calculus. The notations for calculus used today are those Leibniz himself once used. In 1700 the Berlin Academy of Sciences was founded at the behest of Fredrick I of Prussia. Leibniz became its first president.

Renowned invention: Stepped reckoner
...and more characters!

This game is developed originally for the software contest held in 2000 as "PRINCIPIA".
Since then, all aspects of the game are improved including the system, graphics and sound. Also the current version has "Final theme", "Order of merit" and more. It is completely different to the original version.

The game follows actual history very closely, so you can also learn the history of science while you play the game.

All six songs were recorded in the studio by a real string quartet. These live performances suit the 17th century aesthetic very well.

If you are interested in Science, this will be a fun game for you!

PRINCIPIA: Master of Science — game info

Platforms
Windows, macOS
Player modes
Single-player
PC Game Pass
Not included
More games like this:Mac games

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Oct 15, 2025
PRINCIPIA: Master of Science, developed by tomeapp and published by PLAYISM, is a deeply unconventional simulation game that attempts to capture the birth of modern scientific inquiry through strategy, philosophy, and historical nuance. Set during the intellectual upheaval of the seventeenth century, it places the player among the pioneering figures of early science, from the likes of Isaac Newton to Gottfried Leibniz, and tasks them with building reputations, conducting experiments, and publishing revolutionary discoveries. The game is not about conquest or destruction but about thought and perseverance—the gradual, uncertain process through which knowledge emerges. It provides an opportunity to explore a world where reason is the weapon, where ideas compete for recognition, and where the player’s greatest adversary is the shifting balance between curiosity and credibility. The core gameplay unfolds in a turn-based structure that revolves around six major fields of research: Astronomy, Physics, Optics, Thermodynamics, Biology, and Mathematics. Each field represents a branch of discovery that can yield insight, prestige, or practical applications depending on how the player approa…
1 found this helpful
Recommended Sep 21, 2025
Very Interesting game
Recommended Jul 1, 2025
Authentic, really captures the atmosphere both of cooperation and competition in the sciences, working on a specialist area, while trying to level up other skills. Balancing rivalry with bulding relationships, and take advantage of opportunities in faculties throughout Europe
Recommended May 27, 2025
If you’re a fan of deep strategy, scientific discovery, and historical simulation, PRINCIPIA: Master of Science is a must-play. Set in the Age of Enlightenment, this unique PC game lets players step into the shoes of legendary scientists like Newton, Galileo, and Kepler, navigating the turbulent intersection of academia, politics, and progress. With its richly detailed mechanics, thoughtful decision-making, and compelling blend of real history and scientific theory, PRINCIPIA challenges players to expand the frontiers of knowledge while managing rivalries, reputation, and the occasional clash with dogma. It's an intellectual strategy experience unlike any other.
Not recommended Mar 29, 2025
They never finished the game. They just wanted your money.
Recommended Nov 3, 2024
Nice short game. Sadly not being worked on anymore

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