Blindfolio

You get a random 15–20 years of market history. Which era? You'll only find out at the end. The goal: earn more than the S&P 500.

Mode

Duration

Starting era

A random interval from 1962–2026. Which era — you'll find out at the end.

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Learn

Read the market stories behind the game

Guides, historical eras and company case studies are grouped in one hub, with links between related articles and a path back into the game.

Open all articles

Hidden companies

Every stock receives a temporary codename, so brand fame cannot do the work for you.

Hidden eras

You only learn the exact years after the round, when the market regime is already over.

S&P 500 comparison

Your result is shown next to the index, so it is clear whether your choices really added value.

Ways to play Blindfolio

Stock market game

Blindfolio is a stock market game built on real historical data. Invest without company names or era labels and try to beat the S&P 500.

Investing game

A free investing game where companies are hidden, eras stay secret, and every round asks whether your decisions beat the S&P 500.

Historical simulator

Simulate investing through hidden historical periods: inflation, bubbles, crashes, recoveries, tech booms, and bankruptcies.

Blind investing

A blind investing game where Apple, Enron, Nvidia or Lehman may be hidden behind temporary codenames until the round ends.

Beat the index

Try to beat the S&P 500 across a hidden historical period. Blindfolio compares your return to the index at the end of every round.

Portfolio simulator

Build a portfolio from stocks, ETFs, bonds, cash, commodities and crypto while the historical era stays hidden.

Financial literacy

A financial literacy game about diversification, timing, bubbles, crashes, index funds, and why markets look easier after the result is known.

Historical eras you can learn from

Market era

Dot-Com Bubble Investing Game — Could You Survive 1995–2002?

Market era

2008 Financial Crisis Investing Game — Invest Through the Crash

Market era

COVID Crash Investing Simulator — Can You Beat the Market?

Market era

AI Boom Investing Game — Spot Winners Without Names

Market era

1970s Inflation Investing Game — Stocks, Bonds, Gold and Oil

Market era

Lost Decade Investing Game — Can You Beat the 2000s Market?

Company stories hidden inside the game

AAPL

Apple Inc.

MSFT

Microsoft Corporation

AMZN

Amazon.com Inc.

GOOGL

Alphabet Inc. (Google) Class A