Lean Games & Simulations
Teach lean concepts by letting people feel them. Project a simulation in your next workshop, hand your team a quick game, or print a facilitator card and run the classic tabletop exercises — all free.
Simulations
Watch lean principles prove themselves — built to project in a workshop.
The penny game, in your browser
One-Piece Flow Simulator
Two identical lines race to build 20 parts — one in batches, one in single-piece flow. Watch WIP pile up, lead time explode, and a hidden defect spread through an entire batch. Factory, café, and office scenarios, with live metrics your team can argue about.
More simulations are coming — the dice game from The Goal is next.
Digital Games
Quick challenges that sneak the concept in — play on your phone, no signup.
Path Clearer
Spot the bottleneck before it spots you. Find what's slowing everything down and clear the path to keep things running.
More games are on the way. Check back soon.
Facilitator Cards
One-page printable guides for the classic tabletop exercises.
Everything you need to run each game with a real team: setup, rounds, what to expect, and debrief questions. Drop in your email once and the whole library unlocks.
The Penny Game
15–20 minTeaches: One-piece flow, batch size, WIP, quality feedback
You need: 20 coins · 5–6 people · one table
The Dice Game
20–25 minTeaches: Variability, dependent events, why balanced lines underperform
You need: Dice + ~40 tokens · 4–6 people
The Paper Airplane Game
25–30 minTeaches: Batch vs. flow, standard work, built-in quality
You need: ~40 sheets of paper · 5–7 people
The 5S Numbers Game
10–15 minTeaches: Sort, Set in Order, Shine — why organization is speed
You need: Printed number sheets · any group size
Letter-size, print-ready, and readable in black and white. Prefer everything digital? The One-Piece Flow Simulator runs the penny game for you.
Ready for the real thing? The free lean tools take these concepts to your actual line: takt, standardized work, kanban sizing, and more.