Explore the Quests
Mayor's Dilemma
Begin in Marginal Falls by choosing policy incentives and watching how citizens respond when the rules change.
Riverside Choice
Allocate scarce riverfront land between parks and apartments while weighing trade-offs at the margin.
Marginal Falls Murder
Hire investigators and narrow the crime window while observing diminishing marginal returns.
Operation: Contingency Plan
Build the strongest investigation plan under a fixed budget by comparing marginal conviction gains.
Operation: Contingency Plan
Choose investigation bundles under changing forensic prices and see how optimal choices shift when prices change.
Elasticity Jar Sort
Sort Marginal Falls goods into elastic and inelastic demand jars by reasoning through substitutes, urgency, and time.
The Block Party
Plan the town block party and watch how total output, marginal product, and costs move as the class scales up.
Founders' Night Exchange
Trade pastry ingredients through class markets and discover how prices coordinate buyers and sellers.
The Berry Vault
Use reservation values and market prices to measure consumer surplus and producer surplus in the town bank.
Price Posting Market
Open a storefront, post prices across rounds, and watch competitive pressure push prices toward the market outcome.
Differentiate for Donations
Create a distinctive charity name and slogan, then see how product differentiation can attract more donations.
The Starlight Shuttle War
Enter the corporate district, choose shuttle fares against a rival, and identify the Nash outcome in a price game.