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N+NATURE PLAYWORKS
Game Theory Report 5 GAMES ONLINE
GAME THEORY ARCADEFIVE ROUTES FOR EVERY PLAYER
PLAY / THINK / REDESIGN

Different minds spark in different ways.
Five ways to play.

Connect landscapes, build trust, decide, investigate, or negotiate. Choose an entrance and experience rules that make cooperation the better choice.

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LEARNING COMPANIONBefore changing people, change the rules of the game.

Nature problems are not stories about bad people. When everyone protects their own livelihood, sales, or repayments, the whole group can somehow still end up worse off. Learn to spot those conditions and redesign them so cooperation can last.

EXPERIENCE IT IN 15 SECONDS

A shared well. Your neighbor may pump more.

What would you do if only this season's yield mattered?

  1. 01

    Non-cooperation can arise from rational choices under the current rules, not from bad intentions.

  2. 02

    Disclosure alone is not enough. Costs, benefits, rights, and time must change together.

  3. 03

    Align the boundaries of nature, decision-making, and repayment sources.

  4. 04

    Test not only nature recovery, but also durable benefits and repayment sources that keep people participating.

  5. 05

    Design rules that make cooperation rewarding instead of relying on requests.

PLAYER PATH 01I like maps and spatial puzzles

2 equilibria + pact + crisis

WILD LINK

Wildlife Corridor Assurance Game

Play length: 2 equilibria + pact + crisis

A forest corridor crosses parcels owned by four people with different priorities. One development can break the link, yet conserving alone may leave one owner paying for everyone. Choose how to use your parcel and whose conservation promise will trigger your own, then build the pact and guarantee. Experience how credible assurance turns private risk avoidance into four-way cooperation that protects wildlife habitat.

GAME THEORY TYPEStag Hunt (Assurance Game)

Cooperation and non-cooperation can both be equilibria; credible assurance changes the safer choice.

A chain of credible promises turns a divided map into a living corridor

NOT PLAYEDHINTS AVAILABLE ANYTIME
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PLAYER PATH 02I like strategy and reading moves

7 seasons + treaty design

FLYWAY

Migratory-Bird Trust Game

Play length: 7 seasons + treaty design

Migratory birds travel across several regions for seven seasons. Each region wants to avoid protection costs: developing alone brings a short-term gain, but if every region does the same, the migration fails. Each season, choose protection or development with regional partners and decide whether to retaliate against an apparent breach caused by monitoring error or keep cooperating conditionally. Experience how reputation, retaliation, and a chance to repair trust can sustain cooperation.

GAME THEORY TYPERepeated Prisoner’s Dilemma

The future, reputation, retaliation, and forgiveness can sustain cooperation.

Reputation, retaliation, and forgiveness gradually reshape a migration route

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PLAYER PATH 03I like decisions and teamwork

1 choice × 7 phases

COOP//NATURE

Food-Waste Cooperation Simulation

Play length: 1 choice × 7 phases

Retailers, producers, and delivery firms face a food-waste crisis while separately protecting stock, costs, and sales. Each can rationally avoid cooperating because helping alone may be costly, but the same choice by all creates more waste. Choose responses to each event and strengthen rules for information sharing, cost sharing, and inventory guarantees. Experience how changing payoffs can turn individually sensible choices into lasting cooperation.

GAME THEORY TYPEPrisoner’s Dilemma

Individually safe choices can hurt everyone; institutions can change the payoffs.

A fast cooperation combo where all three reactions are revealed at once

NOT PLAYEDHINTS AVAILABLE ANYTIME
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PLAYER PATH 04I like stories and mysteries

2 sites × 3 mornings + rule design

LOOP 20

Groundwater Time Loop

Play length: 2 sites × 3 mornings + rule design

In a town where pumping groundwater first raises today’s harvest, the water table keeps falling. Farmers, companies, and a bank disagree about the cause and who should pay. Investigate two sites on each of three mornings, choose the evidence to carry forward, then set use caps, violation detection, and cost sharing. Share the causal story so the three parties can cooperate, and learn how measurement, use rights, and contracts can protect water everyone depends on.

GAME THEORY TYPECommon-Pool Resource Game

The urge to take first causes depletion; caps, rights, and measurement can repair it.

An investigative mystery where one carried memory completes the causal chain

NOT PLAYEDHINTS AVAILABLE ANYTIME
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PLAYER PATH 05I like dialogue and reading people

3 interviews + contract + 3 shocks

NATURE DEAL LAB

Nature-Impact Finance Negotiation

Play length: 3 interviews + contract + 3 shocks

A bank, pension fund, and operating company want nature-positive finance, but each waits because the first to tighten standards could lose clients, returns, or funding. Ask each party one candid question, decide who contributes how much, how losses are shared, and what changes during a crisis. Experience negotiation and contract design that makes participation worthwhile for each party while increasing the value they create together.

GAME THEORY TYPECooperative / Bargaining Game

Align coalition value and allocation so every party prefers to stay.

A negotiation drama that turns candid concerns into terms, counteroffers, and resilience

NOT PLAYEDHINTS AVAILABLE ANYTIME
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MODEL BOUNDARYThis game is a learning model for testing game structures.

The cases are fictional learning scenarios based on typical use cases.

NATURE PLAYWORKS / 2026NO LOGIN · LOCAL SAVE · FREE PLAYCreative Commons (CC BY-NC 4.0): Dedicated to Nature. Earthday Everyday/Tetsu Hattori LinkedIn