New · Sandbox
Control the Market
Build your own economic timeline. Move stocks, sectors, cities, and historical events to see how your portfolio would survive.
Sandbox combines the Stock Game and Real Estate Game into one open-ended simulator. Start from real history, change the rules, and test any market scenario you can imagine.
- Inject 9/11-style shocks, oil crises, or your own custom event
- Crash Tech while Energy rallies — sector-level control
- Housing crash in Miami, boom in San Francisco
Total Net Worth
$1,284,650
Stocks
$842,110
Real Estate
$442,540
Custom event9/11-style shock applied in 2008
Tech
-8.2%
Energy
+6.1%
Miami
-11%
S&P 500
-4.2%
How it works
Three steps to your own economy
Move the timeline. Change the market. See what breaks.
Pick your era
Start from any real historical year between 1990 and today. Choose a preset era or a clean slate.
Change the rules
Move sliders. Crash sectors. Boost cities. Drop historical events into new years. Or write your own headline.
Watch it play out
Your stock and real-estate portfolios respond in real time. Compare against a "no intervention" baseline.
Example Scenarios
Six ways to break the market
What happens if you put a 2008-style credit crunch into the middle of a tech boom? There is no right answer here — only better experiments.
2008 + 9/11-style shock
Stack a geopolitical shock on top of the financial crisis and see whether diversification saves you.
Tech crash, housing boom
Crater tech stocks while suburban housing prices rip. Where does the money flow?
High rates, Miami migration
Spike interest rates while population moves south — does Miami real estate still win?
Oil boom and recession
Push energy prices to the moon while consumer confidence collapses.
COVID happens in 1998
Take a real event out of its era. What breaks when the dot-com boom meets a global lockdown?
AI boom with a housing slowdown
Tech stocks rip while San Francisco housing cools. Model a split economy.
Enter Your Own Event
Write the headline. We’ll simulate the fallout.
Type any hypothetical event — from a hurricane in Miami to iPhones coming to life — and Sandbox generates a plausible one-year impact across sectors, cities, rates, and confidence. Every estimate is editable, lockable, and re-rollable.
“Godzilla attacks Brazil and shuts down major ports for six months.”
Fictional scenario estimate — generated for gameplay and educational experimentation. Not a real forecast.
One portfolio, two markets
Stocks and real estate, in one timeline
Watch your stock holdings and property values respond to the same shocks at the same time. See migration patterns move city prices. See rate hikes hit both bonds and mortgages. See a tech crash pull rent growth with it.
- Combined net-worth chart with event markers
- Per-city housing controls with migration, supply, and rent
- Draggable timeline — stack multiple events in any year
8
Sectors
20+
Cities
20+
Events
1990–now
Years
6
Presets
∞
Custom
Setup, live dashboard, and results — coming as Sandbox rolls out. Landing preview available now.