Divide every paycheck among needs, wants and savings, watch your city rise floor by floor, and keep an emergency fund deep enough to survive the next shock.
Each round you receive income and must allocate every dollar across categories of needs, wants and savings using sliders. Your choices build a skyline, funded categories grow taller, while savings form the emergency fund. After you allocate, a weather event lands: a boost, an unexpected expense, or worse. Cover a needs shock or go bankrupt. Last all the rounds and grow the most valuable city.
Nest teaches the personal-finance basics of needs, wants and savings, building healthy money habits.
Allocating every dollar of income across needs, wants and savings is zero-based budgeting, and the three-category split is the shape most personal budget advice takes.
Requiring every dollar to be assigned is the original constraint.
That rule is what separates budgeting from tracking. Money not allocated is spent by default, so the discipline is deciding in advance rather than reviewing afterwards — which is why the leftover category is the one that never survives contact with a month.
Nest is an original free browser game about personal-finance economics, the needs / wants / savings split and the value of an emergency fund, wrapped in a city-builder. Made in-house for PlayPendium.