Multi-Game Session Simulator

Most casino visitors don't stick to one game all night. They might start at the blackjack tables, move to slots, try their luck at roulette, and finish at the craps table. This simulator uses Monte Carlo methods to model how switching between games with different house edges affects your overall session outcomes.

Why Multi-Game Sessions Matter

Each casino game has a different house edge and variance profile. When you combine multiple games in one session, the mathematics become more complex. A player who splits time between low-edge blackjack (0.5%) and high-edge slots (8%) experiences a blended house edge that determines their expected loss. This simulator runs thousands of sessions to show you the range of possible outcomes.

Build Your Casino Session

Games in Your Session

Add games in the order you plan to play them. Allocate time (in minutes) to each game.

Simulation Results

Based on 5,000 simulated sessions:

Expected Outcome
-$42
Average result
Best 10%
+$180
Lucky sessions
Worst 10%
-$290
Unlucky sessions
Bust Rate
8.2%
Lost entire bankroll

Your Session Timeline

Total: 60 min

Bankroll Trajectories (Sample of 50 Sessions)

Breakdown by Game

Game Time Bets Placed Total Wagered House Edge Expected Loss

Outcome Distribution

How often you can expect each outcome:

Win ($50+)
28%
Break Even (±$50)
18%
Small Loss ($50-$200)
36%
Bust (Lost All)
8%
Key Insight: Your blended house edge across all games is 2.1%, meaning you're expected to lose $2.10 for every $100 wagered. Over a 2-hour session, this adds up quickly.

Understanding Multi-Game Sessions

According to the American Gaming Association, the average casino visitor plays 2-4 different games during a typical visit. Understanding how this affects your expected outcomes requires understanding the mathematics of each game's house edge and how they combine.

How the Simulation Works

This tool uses Monte Carlo simulation, a computational technique developed during the Manhattan Project that uses random sampling to model complex systems. For each simulated session, the tool:

  1. Calculates bets per game: Based on decisions per hour for each game type
  2. Simulates each bet: Using random numbers weighted by true probability
  3. Tracks bankroll: Recording how your balance changes through the session
  4. Checks stop conditions: Stopping if you hit stop-loss or bust
  5. Aggregates results: Compiling statistics across thousands of runs

The variance parameter models how "swingy" each game is. Slots have high variance (big wins and losses), while baccarat has low variance (outcomes cluster near expected value). Research from the UNLV International Gaming Institute has extensively studied these mathematical properties across casino games.

The Blended House Edge

When you play multiple games, your effective house edge is a weighted average based on how much you wager on each game. If you bet $1,000 on blackjack (0.5% edge) and $500 on slots (8% edge), your blended edge is:

The Math: Blended Edge = (($1,000 × 0.5%) + ($500 × 8%)) ÷ $1,500 = ($5 + $40) ÷ $1,500 = 3.0% — Even though you spent more time at blackjack, the slots wagering significantly increased your expected loss.

Game Properties Used in This Simulator

Game House Edge Decisions/Hour Variance Level
Blackjack (Basic Strategy) 0.5% 70 Low
Blackjack (Average Player) 2.0% 70 Low
Roulette (European) 2.7% 40 Medium
Roulette (American) 5.26% 40 Medium
Craps (Pass Line) 1.41% 100 Low
Baccarat (Banker) 1.06% 80 Very Low
Slots (Low Volatility) 4% 600 High
Slots (High Volatility) 8% 600 Very High
Video Poker (Perfect Strategy) 0.5% 400 Medium
Keno 25% 20 Extreme

House edge figures are based on data from the Nevada Gaming Control Board and academic research published in gaming mathematics journals. Actual returns vary by specific game rules and player skill level.

Educational Purpose Only: This tool is designed to help understand gambling mathematics, not to provide gambling advice or strategy. All forms of casino gambling have negative expected value for players over time. If you or someone you know has a gambling problem, contact the National Problem Gambling Helpline at 1-800-522-4700.

Strategic Insights

While no strategy can overcome the house edge in the long run, understanding these mathematics helps you make more informed decisions about entertainment spending:

Time vs. Money Trade-offs

Games with lower decisions per hour (like roulette) expose less of your bankroll per hour than games with rapid decisions (like slots). However, this doesn't change the percentage you're expected to lose—it just stretches the entertainment value over more time.

The Variance Factor

High-variance games like slots mean your actual outcomes will deviate wildly from expected value. You might walk away a big winner or lose your entire bankroll quickly. Low-variance games like baccarat produce outcomes that cluster closer to the expected loss.

Related Tools

Explore more about the mathematics of gambling with our other calculators:

Remember: These tools are for education and curiosity only. Understanding the mathematics helps explain why casinos are profitable businesses—it's not a strategy for winning. The house always has the edge, and that edge is mathematically guaranteed to win over time.