A lottery tycoon simulator. You are the house — design lottery rules, tune payout rates, allocate public benefit funds. Watch NPCs transform from curious passersby into people who can't stop. Behind every number, a virtual life rises or falls. You are not the gambler. You are the house.
You are not the gambler. You are the house.
Probability Workshop is a lottery tycoon simulator. You stand on the winning side of the rules — designing odds, setting payouts, watching money flow into your pockets.
Core Gameplay
Design Lotteries — Pick-3, Daily Draw, Progressive Jackpot. Define prize tiers and payout structures.
Control Payout Rates — 50% or 30%? High rates keep them coming back. Low rates maximize your cut.
Allocate Funds — Prize pool, commissions, public benefit, profit. A four-way balancing act.
Build Your Retail Network — Recruit franchisees, expand your reach, penetrate the entire city.
Every NPC Has a Life of Their Own
85% of people buy a few tickets and leave. They come in silence, they leave in silence.
15% can't stop. And that 15% generates almost all of your profit.
Passersby become regulars. Regulars can't stop. Those who can't stop lose everything.
Winning isn't always the end — 70% of jackpot winners go broke within 5 years, worse off than before.
Follow any NPC's journey: from curiosity to addiction, from addiction to ruin.
You're Not Dealing With Numbers. You're Dealing With People.
On the left, your wealth grows.
On the right, their lives collapse.
The game doesn't pop up warnings about the dangers of gambling. It simply says:
"You netted ¥16,800 from him."
Business Pressure
60 periods per cycle — pay your license fee or shut down
Regulators are watching — hide the true odds, get shut down
Prize pool overdraw? Pay out of pocket
Your greed has consequences — when your customer base collapses, there's nothing left to extract
An Experiment in Probability, Greed, and Human Nature
You don't cheat. You don't need to.
You just design the rules. Then stand on the winning side.
Official site
On Steam
Details