Double Diamond, Triple Diamond, Red White and Blue, Triple Lucky Sevens, Five Times Pay, Ten Times Pay, Double Black Tie, Hot Peppers, Double Dollars, 4th of July, Haywire, Triple Cash, Double Hearts, Haywire Deluxe, Red White and blue Deluxe, Wild Cherry, Sizzling 7s, and Top Dollar. IGT S2000 machines are available in 3 tops. Chop Top (short top).
The free online Hot Seven slot machine is video game developed by Amatic Industries. It has 5 reels with 3 rows and 5 paying lines that cannot be adjusted. Hot Seven slot machine game has an old-school design, and everything about it is completely retro, like the fact that it has no bonus games, and even its sound effects remind of old gambling machines.
Hot Seven Slot's Burning Tokens
The Hot Seven slot game has a total of 9 symbols, out of which only one is a bonus symbol while all others are those of a regular kind. To see the amount each card gives, there is a question mark sign which when clicked opens the pay table. The symbols can be categorized into following categories:
- Low Win Icons – 4 regular-type icons, all depicted with fruit (cherry, lemon, orange and plum). One can win 200, 500, or 2000 credits depending on whether he collects 3, 4, or 5 of the same card. The cherry even awards 50 credits when one gets only 2 of them.
- High Win Icons – another 2 regulars, depicted with grapes and a watermelon. They award 500, 2000 or 5000 credits depending on whether 3, 4 or 5 of the same one is collected.
- Jackpot – marked with the number 7, and if one gets 5 of them, he is awarded the maximum win of 50000 coins! If 3 or 4 jackpots appear on the reels, the player is paid either 1000 or 10000 coins.
- The Scatter – depicted with a star, the Scatter represents the only bonus symbol. It is the only symbol which pays in any position, every other pays from left to right.
Gamble Option
When playing Hot Seven free slot, the player can choose to risk his winnings of the previous round in order to double or even quadruple that win. That is done by picking the Gamble mark, just by choosing the same-named button whenever something is won. When the gambler decides to use the Gamble option, he is about to choose a card's color or suite.
If he guesses the card's color, his winnings are increased, while if he picks the right suit of the card, the player's winnings of the previous round are quadrupled. If the gambler's guess is incorrect, everything he has gambled is lost. Also, if the player prefers to risk a lesser amount, he can click the half button in order to cut the gambling bet in half. This can be done until only 1 credit is reached.
Playing & Wagering
Hot Seven has the two, probably already known, ways of playing. Those are the manual, by pressing the Start button each time the gambler wants to spin the reels, and the automatic, by clicking the Auto Start button which spins the reels for unlimited number of times. The Auto Play lasts until the gambler has lost all of his credit or until it is stopped.
This gambling machine is rather flexible on the one hand, since it gives its player an option to set the bet per line from 2 up to 1000 coins, which makes the maximum total bet 5000 credits. On the other hand, it has only 5 paying lines which are also fixed. The information considering the standings (Balance, Total Bet) can be checked in the bottom of the screen, which is also where the Bet is adjusted by clicking the button carrying the same name.
Who Can Play Hot Seven Free Slot?
Not much is needed to use this retro online slot machine. No download is required; the gambler just needs a stable internet connection and either a mobile phone of a newer date or a PC to take pleasure in playing this old school gambling machine game.
- Appendices
- Slots Analysis
- Miscellaneous
Introduction
In the past I feared to show a concrete example on this page, not wanting to violate copyright laws. However, in the Netherlands, information on the reel stripping and probabilities of each win are sometimes posted on small cards on the machine. A fan of the site sent me the information provided on an IGT 'Red White & Blue' machine.
First, let me present the pay table. For those who are not familiar with the game, a 3-bar is in blue, a 2-bar is in white, and a 1-bar is in red.
Pay Table for Red White & Blue
Win | 1 Coin | 2 Coins | 3 Coins |
---|---|---|---|
Red 7, white 7, blue 7 | 2400 | 4800 | 10000 |
Red 7, red 7, red 7 | 1199 | 2400 | 5000 |
White 7, white 7, white 7 | 200 | 400 | 600 |
Blue 7, blue 7, blue 7 | 150 | 300 | 450 |
Any 3 sevens | 80 | 160 | 240 |
1 bar, 2 bar, 3 bar | 50 | 100 | 150 |
3 bar, 3 bar, 3 bar | 40 | 80 | 120 |
2 bar, 2 bar, 2 bar | 25 | 50 | 75 |
Any red, any white, any blue | 20 | 40 | 60 |
1 bar, 1 bar, 1 bar | 10 | 20 | 30 |
Any 3 bars | 5 | 10 | 15 |
Any 3 reds | 2 | 4 | 6 |
Any 3 white | 2 | 4 | 6 |
Any 3 blues | 2 | 4 | 6 |
Blank, blank, blank | 1 | 2 | 3 |
After the player makes a bet and presses the spin button, the machine selects three random numbers, one for each reel. These are chosen from a random number generator that is constantly drawing random numbers at a rate of thousands per second. The numbers chosen at the moment the play is initiated are the ones used to determine the final outcome. In other words the outcome is predestined the moment you press the spin button.
In the case of Red White & Blue, each random number has 64 equally likely outcomes. Each random number is mapped to a stop position on what is called a 'Lookup Table.' The following is my estimate of what the Red White & Blue lookup table looks like, based on the total number of stops per symbol per reel, provided to me.
Lookup Table for Red White & Blue
Red White And Blue Sevens Slot Machine
Stop Number | Reel 1 | Reel 2 | Reel 3 |
---|---|---|---|
1 | 2 bar | 2 bar | 2 bar |
2 | 2 bar | 2 bar | 2 bar |
3 | 2 bar | blank | 2 bar |
4 | blank | blank | blank |
5 | blank | 3 bar | blank |
6 | 3 bar | 3 bar | 3 bar |
7 | 3 bar | blank | blank |
8 | blank | blank | blank |
9 | blank | blank | blank |
10 | blank | white 7 | white 7 |
11 | white 7 | blank | white 7 |
12 | white 7 | blank | white 7 |
13 | white 7 | blank | white 7 |
14 | white 7 | 1 bar | white 7 |
15 | white 7 | 1 bar | white 7 |
16 | white 7 | 1 bar | white 7 |
17 | blank | 1 bar | blank |
18 | blank | blank | blank |
19 | blank | blank | blank |
20 | 1 bar | blank | 1 bar |
21 | 1 bar | blue 7 | 1 bar |
22 | 1 bar | blue 7 | 1 bar |
23 | blank | blue 7 | 1 bar |
24 | blank | blue 7 | 1 bar |
25 | blank | blue 7 | blank |
26 | blue 7 | blue 7 | blank |
27 | blue 7 | blue 7 | blank |
28 | blue 7 | blank | blue 7 |
29 | blue 7 | blank | blank |
30 | blue 7 | blank | blank |
31 | blue 7 | 2 bar | blank |
32 | blank | 2 bar | 2 bar |
33 | blank | blank | 2 bar |
34 | blank | blank | 2 bar |
35 | 2 bar | 3 bar | blank |
36 | 2 bar | 3 bar | blank |
37 | blank | blank | 3 bar |
38 | blank | blank | blank |
39 | 3 bar | blank | blank |
40 | blank | blank | blank |
41 | blank | blank | blank |
42 | blank | red 7 | blank |
43 | blank | red 7 | red 7 |
44 | blank | red 7 | blank |
45 | red 7 | blank | blank |
46 | blank | blank | blank |
47 | blank | blank | blank |
48 | blank | blank | blank |
49 | blank | blank | 3 bar |
50 | blank | 3 bar | 3 bar |
51 | 3 bar | 3 bar | 3 bar |
52 | 3 bar | 3 bar | blank |
53 | 3 bar | blank | blank |
54 | blank | blank | 2 bar |
55 | blank | 2 bar | 2 bar |
56 | 2 bar | 2 bar | 2 bar |
57 | 2 bar | blank | blank |
58 | blank | blank | blank |
59 | blank | 1 bar | 1 bar |
60 | 1 bar | 1 bar | 1 bar |
61 | 1 bar | 1 bar | 1 bar |
62 | 1 bar | 1 bar | 1 bar |
63 | blank | blank | blank |
64 | blank | blank | blank |
Immediately after the random numbers are chosen they will get mapped to a stop on the machine via the Lookup Table, the outcome will be scored, and the player paid if he won anything. For example, if the random numbers chosen were 26, 8, and 43 the player would get Blue 7, Blank, Red 7.
Note how there are clusters of the same symbol in a row. For example, stops 60 to 62 on reel 1 all are mapped to a 1 bar symbol. These will all be directed to the same 1 bar symbol on the actual reel. There are exactly 22 groups of like symbols on each reel, which is the standard number of stops on an electro-mechanical three-reel slot machine, known as a 'Stepper Slot.'
Free Slots 777 Red White And Blue
Also note that only stop 45 on reel 1 is mapped to the red 7 symbol. However the blanks above and below it have five positions each. This causes the often seen near miss effect, where the reel stops directly above or below the highest paying symbol. Many people have written to me, claiming that this near miss effect is against the law. My slot machine Appendix 1 proves otherwise.
To calculate the return of the machine, add up the number of positions for each symbol on each reel, to get the total symbol weightings. The following table shows these totals. This table is what was indicated on the Red White & Blue machine in the Netherlands. The Lookup Table above, was reverse engineered to produce these total weights.
Total Weights for Red White & Blue | |||
---|---|---|---|
Stop Number | Reel 1 | Reel 2 | Reel 3 |
Red 7 | 1 | 3 | 1 |
White 7 | 6 | 1 | 7 |
Blue 7 | 6 | 7 | 1 |
3 bar | 6 | 7 | 5 |
2 bar | 7 | 6 | 9 |
1 bar | 6 | 8 | 9 |
blank | 32 | 32 | 32 |
Total | 64 | 64 | 64 |
With the weighting of each symbol and reel known, it is just take simple math to calculate the return. The following table shows the win, number of combinations, probability, and contribution to the return for all possible events. For example, the table above shows the number of white 7's are 6, 1, and 7, for reels 1, 2, and 3 respectively. The total number of winning combinations for three white sevens is thus 6 × 1 × 7 = 42.
Return Table for Red White & Blue
Win | Pays | Combinations | Probability | Return |
---|---|---|---|---|
Red 7, white 7, blue 7 | 2400 | 1 | 0.000004 | 0.009155 |
Red 7, red 7, red 7 | 1199 | 3 | 0.000011 | 0.013721 |
White 7, white 7, white 7 | 200 | 42 | 0.000160 | 0.032043 |
Blue 7, blue 7, blue 7 | 150 | 42 | 0.000160 | 0.024033 |
Any 3 sevens | 80 | 1199 | 0.004574 | 0.365906 |
1 bar, 2 bar, 3 bar | 50 | 180 | 0.000687 | 0.034332 |
3 bar, 3 bar, 3 bar | 40 | 210 | 0.000801 | 0.032043 |
2 bar, 2 bar, 2 bar | 25 | 378 | 0.001442 | 0.036049 |
Any red, any white, any blue | 20 | 113 | 0.000431 | 0.008621 |
1 bar, 1 bar, 1 bar | 10 | 432 | 0.001648 | 0.016479 |
Any 3 bars | 5 | 7977 | 0.030430 | 0.152149 |
Any 3 reds | 2 | 335 | 0.001278 | 0.002556 |
Any 3 white | 2 | 1036 | 0.003952 | 0.007904 |
Any 3 blues | 2 | 756 | 0.002884 | 0.005768 |
Blank, blank, blank | 1 | 32768 | 0.125000 | 0.125000 |
All other | 0 | 216672 | 0.826538 | 0.000000 |
Total | 262144 | 1.000000 | 0.865761 |
The lower right cell shows a return of 86.58%. That means that for every dollar bet at the one coin level, the player will get back 86.58 cents, on average. Doing the same table for two coins results in a return of 86.58% as well, and three coins has a higher return of 87.47%, due to the disproportionately high win on the top two pays. The standard deviation is 9.03 for 1 or 2 coins, and 10.80 for 3 coins.
Other Information on Slots
- Appendix 1 shows the details and analysis of almost 4000 actual spins on a Reno slot machine.
- Appendix 2 shows an example of the virtual reels behind a hypothetical slot machine and how the average return is calculated.
- Appendix 3A Las Vegas slot machine rankings.
- Appendix 3B Jean/Primm slot machine rankings.
- Appendix 3C Tunica slot machine rankings.
- Appendix 3D Henderson/Lake Mead slot machine rankings.
- Appendix 3E Quarter and dollar returns for Las Vegas slots
- Appendix 3F Miscellaneous slot machine rankings.
- Appendix 4 shows how the return is calculated for my Wizard's Fruit Slot Machine
- Appendix 5 analysis of the 21 Bell Slot Machine.
- Lock and Roll analysis of the skill-based slot machine found in North Carolina.
- Baltimore Sun article in which I am quoted.
External Links
- For a simplified explanation of slots, please see my companion site Wizard of Vegas.
- German translation of this page is available at richtigspielen.com.
- Another decent overview of how slots work and some practical advice for playing them is How Slot Machines Work at VegasClick.com.
- PAR Sheets, probabilities, and slot machine play:Implications for problem and non-problem gambling by Kevin A. Harrigan and Mike Dixon, University of Waterloo, Waterloo, Ontario, Canada. This is an outstanding academic paper that details how some popular slot machines were designed.
- Blazing Sevens simulator.
Written by: Michael Shackleford