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The Bingo Billions slot game is an online video machine brought to you by the NextGen Gaming company. Every gambler’s dreams is about standing up and shouting: “Bingo!” after winning huge amounts of cash and being the lucky one, and the golden bar and the ball symbols can make that happen!
Bingo Billions Basics
The Bingo Billions slot machine game has a standard 3×5 structure with 25 optional paylines spreading across the columns. Optional means that the number of active paylines can be changed from 1 up to 25. All 25 patterns can be seen in the Paytable section.
By multiplying the bet per line amount and the number of active paylines, you get the total stake. Set those parameters at any number you want and roll. The gameplay is pretty simple as you can see, and the only bonus feature is played automatically.
Bet Span
Play Bingo Billions free slot by betting 0.01 coins per line all the way up to 10.00. The minimum possible wager is 0.01 with only one line being active. The maximum is 250.00, and it includes all 25 lines with 10.00 credits on each one.
This bet span is pretty huge so it is easy for any gambler to find the right size. If you decrease the number of active lines, the pattern of the one that you turned off will be shown.
Symbols to Search For
The free online Bingo Billions slot machine has three types of symbols:
- Regulars – Represented as money piles, bingo sheet, gold bars, and balls.
- Wild – Has a TV presenter as an icon.
- Scatter – triggers the Extra Spins.
The Wild substitutes for all signs except for the scatter and is also the most valuable symbol. Two or more scatters at any position on the reels include a prize. Those wins are multiplied by the total amount staked.
Extra Spins Feature
10, 15 or 20 Gratis Rolls are won when 3, 4 or 5 scattered icons appear respectively. All gratis swirls are played automatically with the same total stake same as triggered them.
It is important to note that all winnings are tripled during the feature. The Free Games feature can be re-triggered by landing 3 or more Logos at any position on the columns.
Free vs. Real-Money Version
No matter you play the demo or the real-money version, the fun is guaranteed. Those who are new to slots and gambling are recommended the unpaid mode, in which 1000.00 credits are awarded every time the pokie is reloaded. All you need is a device to play with and a stable internet connection. No need to register and download!
If you, however, decide to gamble for real money, it can be done only by registering at an online casino which offers the gamble. The last step is to deposit and enjoy the extra welcome bonuses that some casinos provide.
On This Page
Introduction
Slot Bingo appears to be a pick-15 keno game. The game is made by SmartSoft Gaming, a provider of games for Internet casinos. As I show below, the game does not follow the natural odds of a fair keno.
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After confronting SmartSoft with my analysis, they quickly removed the game.
Rules
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- The player may play 1 to 8 cards at a time.
- Each card is marked with 15 random numbers, without replacement, from 1 to 80. The player may not choose his own numbers. The cards change after every game.
- After a bet is made, the game will draw 20 random balls, numbered 1 to 80, without replacement.
- If a ball drawn by the game matches a number on any card played, then it is marked on the card and it known as a 'catch.'
- Each card wins according to the number of catches and the pay table below.
Slot Bingo Pay Table
| Catch | Pays |
|---|---|
| 15 | 10000 |
| 14 | 1000 |
| 13 | 800 |
| 12 | 500 |
| 11 | 400 |
| 10 | 200 |
| 9 | 100 |
| 8 | 50 |
| 7 | 40 |
| 6 | 20 |
| 5 | 10 |
| 4 | 5 |
| 3 | 4 |
| 2 | 2 |
| 1 | 0 |
| 0 | 0 |
Analysis
The following table shows the expected return, assuming the balls are drawn fairly. Pays are on a 'for one' basis.
Slot Bingo Return Table
| Catch | Pays | Combinations | Probability | Return |
|---|---|---|---|---|
| 15 | 10000 | 15,504 | 0.000000 | 0.000000 |
| 14 | 1000 | 2,325,600 | 0.000000 | 0.000000 |
| 13 | 800 | 137,210,400 | 0.000000 | 0.000017 |
| 12 | 500 | 4,310,693,400 | 0.000001 | 0.000325 |
| 11 | 400 | 81,903,174,600 | 0.000012 | 0.004937 |
| 10 | 200 | 1,009,047,111,072 | 0.000152 | 0.030412 |
| 9 | 100 | 8,408,725,925,600 | 0.001267 | 0.126716 |
| 8 | 50 | 48,650,485,712,400 | 0.007331 | 0.366572 |
| 7 | 40 | 198,344,287,904,400 | 0.029890 | 1.195589 |
| 6 | 20 | 572,994,609,501,600 | 0.086348 | 1.726962 |
| 5 | 10 | 1,168,909,003,383,260 | 0.176150 | 1.761501 |
| 4 | 5 | 1,660,382,107,078,500 | 0.250213 | 1.251066 |
| 3 | 4 | 1,595,269,083,271,500 | 0.240401 | 0.961604 |
| 2 | 2 | 981,704,051,244,000 | 0.147939 | 0.295878 |
| 1 | 0 | 346,917,972,996,000 | 0.052279 | 0.000000 |
| 0 | 0 | 53,194,089,192,720 | 0.008016 | 0.000000 |
| Total | 6,635,869,816,740,560 | 1.000000 | 7.721578 |
The lower right cell shows an expected return of 772%!
Experiment
A return of 772% seemed too good to be true, so I played the free game at the SmartSoft web site. I found the average number of catches to be ridiculously low. So I recorded 20 consecutive games for more careful analysis. The following video shows those 20 games.
The next table shows the number of catches on each card in each game.
Total Catches by Game and Card
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| Game | Card 1 | Card 2 | Card 3 | Card 4 | Card 5 | Card 6 | Card 7 | Card 8 | Total |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 3 | 2 | 1 | 1 | 1 | 2 | 2 | 13 |
| 2 | 1 | 2 | 0 | 2 | 1 | 3 | 2 | 1 | 12 |
| 3 | 1 | 0 | 2 | 0 | 1 | 0 | 3 | 1 | 8 |
| 4 | 2 | 2 | 1 | 0 | 1 | 1 | 2 | 1 | 10 |
| 5 | 2 | 0 | 1 | 2 | 2 | 0 | 1 | 0 | 8 |
| 6 | 1 | 0 | 0 | 1 | 2 | 1 | 3 | 1 | 9 |
| 7 | 1 | 0 | 1 | 2 | 2 | 1 | 0 | 2 | 9 |
| 8 | 3 | 2 | 0 | 2 | 1 | 1 | 0 | 2 | 11 |
| 9 | 1 | 0 | 0 | 1 | 0 | 0 | 3 | 3 | 8 |
| 10 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 4 |
| 11 | 2 | 1 | 1 | 2 | 4 | 1 | 1 | 0 | 12 |
| 12 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 6 |
| 13 | 1 | 0 | 2 | 3 | 1 | 3 | 1 | 0 | 11 |
| 14 | 0 | 0 | 1 | 0 | 1 | 0 | 3 | 4 | 9 |
| 15 | 1 | 0 | 4 | 3 | 2 | 2 | 1 | 3 | 16 |
| 16 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 0 | 11 |
| 17 | 2 | 2 | 1 | 3 | 2 | 1 | 0 | 1 | 12 |
| 18 | 0 | 2 | 0 | 1 | 0 | 0 | 1 | 2 | 6 |
| 19 | 0 | 2 | 0 | 0 | 1 | 1 | 0 | 2 | 6 |
| 20 | 0 | 2 | 1 | 0 | 1 | 1 | 1 | 0 | 6 |
| Total | 23 | 20 | 19 | 24 | 28 | 20 | 27 | 26 | 187 |
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The lower right cell shows a total of 187 catches.
In 20 fair games of 8 cards each with 15 numbers per card, the expected number of catches would be 20 × 8 × 15 × (20/80) = 600.
My results were 600-187 = 413 catches short of expectations.
The standard deviation of the total catches in 20 games is sqrt(20*8*15*(1/4)*(3/4)) = 10.606602.
This makes my results 413/10.606602 = 38.938013 standard deviations short of expectations.
In a fair game, the probability of 187 catches of less would be 1 in some number with about 330 digits. To put that in perspective, that would be like the chances of buying 39 random Powerball lottery tickets (each has a chance of winning of 1 in 292,201,338) and winning on all 39 of them.
You may be wondering if the game discloses that the ball draw is not fair. It does not that I can find. If you click the question mark in the game nothing happens.
It is easy to conclude either the cards or the ball draw is not random. I don't know exactly how they are doing it, but the numbers that appear least on the player cards are the most likely to be drawn.
Update
After giving SmartSoft Gaming an opportunity to respond to this page, they replied that Slot Bingo was a work in progress and not available for actual casino use. Furthermore, they indicated it was not a good idea to have incomplete games on their web site, which I see they removed.
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I would like to commend SmartSoft for doing the right thing and removing the game.