Historoll YouTube

History, simulated a thousand times.

One question from history. One simulation from real sources. Run 1,000 times, then animated.

Watch on YouTube Play the simulators

Latest episode

Run it yourself

All simulators →

Episode 01

Hold Highmoor

Lay siege to a castle. How long does it hold?

Play

Episode 02

The News Race

Race a message across the Roman Empire.

Coming soon

Episode 03

Feed Rome

Keep a city of a million fed.

Coming soon

How it works

  1. A real question

    Each episode starts with one “how did this actually work?” question from history.

  2. Simulated 1,000 times

    We build a simulation from historical sources and run it 1,000 times.

  3. Your turn

    Every episode has a free simulator. Change the numbers and run it yourself.