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Mine Field

A leader plots a hidden path across a field of markers, then the group crosses it one at a time — remembering every step that worked, and every one that didn't. The real memory test isn't the leader's pattern; it's everyone else's mistakes.

15 min3–8 peopleAverageFloor markers neededIn-person onlyClassroom ✓
By Jon Zajac · Founder & Chief Icebreaker · Last updated February 19, 2024

What is Mine Field?

Mine Field puts a hidden path across a field of markers: one leader plans the route, then the rest of the group crosses it one at a time, stepping only to a marker touching the one they're on. Step on the right one and you keep going. Step on the wrong one — or skip a marker — and you go to the back of the line.

It works because nobody solves the pattern alone. Every failed step teaches the whole line something, so by the time it's your turn, you've already mapped most of the field just from watching everyone ahead of you. The leader remembers one path; everyone else remembers everyone else's mistakes.

It needs an actual room with floor space and players who can walk it, so skip it for remote teams or a space too tight for a full pattern — a screen-based memory game covers similar ground without the floor space.

The rules

  1. The leader lays out a hidden pattern of markers across the field, with one set apart as the starting line.
  2. Players line up behind the start and cross one at a time.
  3. From a marker, you may step forward, sideways, or diagonally to a marker directly beside you.
  4. Step on the pattern's correct marker and you keep going.
  5. Step on the wrong one — or skip a marker — and you go to the back of the line.
  6. First player to reach the far end wins.

Before you start

  • Group size: 3–8 players. Small enough that everyone gets more than one turn, and that watching the whole line stays interesting.
  • Clear, open space. Indoors or outdoors both work, as long as there's enough floor for players to move between markers without bumping each other.
  • One leader, decided in advance. Someone plans the safe path before players arrive and keeps it in mind — or written down — to judge every step.
  • Materials: floor markers or paper circles. Anything flat and steppable works. Space them far enough apart that players can reach between them without stretching.

How to run it

  1. Prepare the markers beforehand

    Gather enough floor markers or paper circles to lay out a full pattern across the space, plus one extra to mark the start.

  2. Choose the leader 1 min

    Pick one player to plan the route. They won't cross the field themselves — their job is remembering which markers are safe.

  3. Lay the pattern 2–3 min

    Set the starting marker slightly apart from the rest, then place the remaining markers in a pattern leading away from it, spaced so players can step forward, sideways, or diagonally between them.

  4. Explain the rules 1–2 min

    Everyone lines up behind the start and crosses one at a time, stepping only to a marker touching the one they're on. A wrong step — or a skipped marker — sends them to the back of the line.

  5. Send players across 5–8 min

    Players attempt the crossing one by one, each narrowing down the safe path by watching everyone who went before them.

  6. Declare a winner 1 min

    The first player to reach the far end of the field wins.

← everyone's really just watching everyone else.

Facilitator tips

Mix up marker colors and shapesDistinguishable markers help players with color vision differences read the pattern, and give a visual anchor to players who process instructions better by sight than by ear.
Say the rules out loud, every timePair the visual layout with clear verbal instructions, so a player who missed the demonstration — or can't see well from the back of the line — isn't left guessing.
Adjust the spacing for mobilityWiden the gaps or simplify the route for players using mobility aids. The memory challenge holds up even when the physical one gets easier.
Turn it into a team versionSplit into small teams that cross together and decide each step by consensus — same memory test, less pressure riding on any one player.

Why it works

Memory improves by watching, not just doingBecause players cross one at a time while everyone else watches, each new attempt inherits the group's collective memory of every step before it — the field gets safer as the line gets shorter.
Physical, but the challenge is mentalCrossing correctly takes some coordination, but winning takes memory — the game rewards paying attention as much as moving quickly.
Nothing to bring but markers and a planOne person willing to plan a path and a set of floor markers or paper circles is the whole materials list — you can run it with whatever's already in the room.
HELLO, MY NAME ISJon

"This one earns its spot because it's tricking people into paying close attention. Everyone in line is quietly building the same map in their head, so by the time it's your turn, you've already done half the work just by watching. It runs indoors or outdoors, with kids or with a whole office, and nobody needs anything more than a few markers and a plan."

Jon Zajac · Founder & Chief Icebreaker

Reflection questions

For classrooms and trainings that want the debrief — these turn the crossing into an actual conversation.

  1. What did you find most challenging about this game?Gets at whether the challenge was remembering the pattern or reading it fast enough to keep the line moving.
  2. How did working together as a team impact your success in this game?Each player crossed alone, but the pattern only got easier because the whole line was paying attention — this asks people to notice that.
  3. What strategies did you use to remember the sequence of markers?Surfaces whoever's using visualization, counting, or plain repetition — good material to compare notes on.
  4. How did you feel when you successfully crossed the field?A quick temperature check on the room, right after the win is still fresh.
  5. What did you learn about yourself or others while playing this game?Opens space for whatever came up — patience, focus, or how teammates reacted under a little pressure.
  6. If you were the leader, how would you set up the pattern differently?Turns the game around — now they're thinking about what actually makes a pattern hard to read.

If this fits, so will these

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Trust Course

Partners take turns guiding each other, blindfolded, through an obstacle course with nothing but verbal commands.

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Trust Walk

A guide leads their blindfolded partner past obstacles using only their voice — no hands allowed.

Jon Zajac

Founder & Chief Icebreaker

I started IcebreakerSpot because I believe strong connections are the foundation of successful teams. This site exists to make it easy to find and share the icebreakers and team-building activities that build trust, spark collaboration, and help groups do great things together.

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