History,
decoded through data.

A new set of 10 quizzes every day — geography, history, language and the living world — and every round ends with the story behind the answer. Below them: Empires, a short auto-battler with history as its backdrop.

Where does science live?

Twenty-five years of research output — and the year China crossed the line.

  1. United States 313,392
  2. Japan 88,807
  3. United Kingdom 72,332
  4. Germany 64,230
  5. France 46,611
  6. Canada 34,830
  7. China
  8. India
World Bank 1996

Every day

11 ways to play today.

A new set every day, server-scored, one attempt — then the leaderboard settles it.

Every daily counts toward your 🔥 streak, ranks you on the day's leaderboard, and shares your result.

Flagship game · beta

Hold the Hot Gates. Face the legions. Break the Mongol Horde.

Empires is a short auto-battler in the line of Hearthstone Battlegrounds and TFT. Buy structure cards, place them, end your turn — your structures raise the troops, and auto-combat settles it. 3 copies of a structure fuse into a stronger one, and a daily challenge pits you against yesterday's best on a server leaderboard. Each match borrows its name from history; the rules are the game's own.

What is CivDecoded?

CivDecoded turns real data into things you can play: 10 daily quizzes, a daily chart race, and Empires, an auto-battler with history as its backdrop. No editorializing — the data does the talking.

Every race is built from primary sources:

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