1. Interactive $1 Slot Machine
Every spin costs exactly $1.00. Track expenditures and house margin in real time.
7
7
7
0
Spins Played
$0.00
Dollars Spent
$0.00
Total Won
$0.00
Net Profit/Loss
House Edge Margin
0.0%
Player Net Return
0.0%
Cost Per $1 Wagered
-$0.00
2. Complete Craps Game Simulator (Pass Line)
Simulate a full Pass Line hand: win immediately on 7/11, lose on 2/3/12, or establish a Point (4, 5, 6, 8, 9, 10) and attempt to re-roll it before a Seven-Out.
OFF
Established Point
0
Hands Won
0
Hands Lost
0.0%
Pass Line Win Rate
--- Session Log Started ---
Theoretical Pass Line Win Probability: 49.29% (House Edge: 1.41%)
3. 6-Deck Shoe Blackjack (Vegas Strip Rules)
Dealer stands on all 17s, blackjack pays 3:2, double any first two cards (including after split), split up to 3 times on any two equal-value cards, split Aces get one card each, and insurance pays 2:1 on a dealer Ace. Dealer peeks for blackjack before you act.
DEALER —
$1000.00
Bankroll
0
Hands Played
312
Cards Left in Shoe
0
Hands Won
--- Shoe Not Yet Shuffled — Place a Bet and Deal ---
Approximate House Edge Under Optimal Basic Strategy: 0.4%–0.5%
4. House Edge Batch Simulator
Simulate thousands of $1 spins in seconds to observe how variance dissolves into expected house return.
Select parameters and run a simulation.
5. The 7 Jim Principles
- Expected Value Rules: Over time, actual returns converge on theoretical expectations.
- Short-Term Variance: Winning streaks are statistical noise, not momentum.
- The Asymmetry of Risk: The house never needs luck when it owns the edge.
- Volume Compounding: High volume reduces outcome volatility for the operator.
- Paytable Design: Large top jackpots disguise small average payouts.
- Hidden Friction: Small repeated fees or edges compound aggressively.
- Decision Science: Always calculate EV before taking repeating risks in business or finance.