
Three ways to play the same book. Climb the platformer and answer to refuel.
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← → to move, Space to jump, ↓ + Space to drop through. Use the on-screen controls to run and jump. Orbs ask a question; a correct answer refuels the climb.
What's inside
23 maps, 111 characters and 379 questions, all generated from the book.
Forest of Value Creation
Explore the fundamentals of offering real value to customers.
5 characters · 17 questions
Marketing Desert
Cross the sands of attracting attention and finding prospects.
5 characters · 17 questions
Sales Castle
Master the art of closing deals within fortified negotiation walls.
5 characters · 17 questions
Iteration Cycle Caverns
Discover how feedback loops refine offerings over time.
5 characters · 17 questions
Distribution Ocean
Navigate direct-to-user versus intermediary distribution channels.
5 characters · 17 questions
Reputation Ruins
Uncover the ancient laws of trust and counterparty risk.
5 characters · 17 questions
Reference Level Icefields
Study how expectations shape behavior change.
5 characters · 17 questions
Conservation Volcano
Understand human laziness as an adaptive survival trait.
5 characters · 17 questions
Stress and Recovery Sanctuary
Balance exertion and rest to sustain long-term performance.
5 characters · 17 questions
System Failure Ruins
Examine normal accidents and why complex systems break.
5 characters · 17 questions
Deconstruction Caverns
Break complex systems into understandable parts.
5 characters · 17 questions
Gall's Law Fortress
Learn why simple systems must precede complex ones.
5 characters · 17 questions
Cognitive Scope Icelands
Explore the limits of human mental bandwidth.
5 characters · 17 questions
Mental Models Archive
Gather core frameworks for understanding business fundamentals.
5 characters · 17 questions
Financial Statements Ocean
Chart the seas of balance sheets and income statements.
5 characters · 17 questions
Financial Ratios Desert
Traverse dry data to reveal business health metrics.
5 characters · 17 questions
Constraint Volcano
Identify and exploit the bottleneck limiting your system.
5 characters · 17 questions
Feedback Loop Caves
Trace how outputs become inputs in living systems.
5 characters · 17 questions
Field Testing Forest
Test offerings in real-world conditions before launch.
5 characters · 17 questions
Most Important Tasks Castle
Prioritize critical work above all else each day.
5 characters · 17 questions
Energy Management Icefields
Preserve and channel personal energy for productivity.
5 characters · 17 questions
Attention Economy Ruins
Fight for scarce human attention in a noisy world.
5 characters · 17 questions
Systems Thinking Volcano
Integrate all fundamentals into a holistic business view.
1 characters · 5 questions
How the book becomes practice
Reading puts ideas in. Retrieval keeps them there. The game is the retrieval.
Walk the world of the book
23 maps, one per part of the book. Signs along the way hold its key ideas, so the walk itself is a refresher.
Battle the characters
111 characters, each a short quiz on one idea. Answer well and the map opens up; a boss guards the end of each one.
Missed ideas come back
Every question you get wrong is re-asked in rematches and boss fights, and the Flashcards mode schedules it with spaced repetition, until you get it right. That is the part that makes it stick.
Keep what you learn
Sign up for free and your demo progress, XP, best tower stage and flashcard schedules move to your account. Come back whenever a chapter starts to fade.