The slots world is filled with many types of games that differ in terms of their features, bonuses, and jackpots.

Plants Vs Zombies Slot Machine. One of the most enjoyable online slots to have been released this year, the Plants Vs Zombies slot machine is a feature rich, humorous slot with random bonuses and a mega progressive jackpot winnable from any of the bonus feature games. With stakes from as low as 20p, any spin can offer the chance of the progressive jackpot which often pays between £20,000 and £50,000 on this 20 payline slot machine.

Bonus accumulator slot machines are a unique type of game that pays bonuses at specific times. These slots are exciting from the perspective that you can actually see when you’re getting close to a special prize.

The only problem is that there aren’t many bonus accumulators around anymore. Casinos have removed the vast majority of these games for reasons that I’ll discuss later.

But Plants vs. Zombies 3D Age of Egypt is one of the few bonus accumulator slot machines that can still be found. This Egyptian-themed slot is based on the popular Plants vs. Zombies mobile gaming series and has an interesting bonus structure.

Keep reading as I discuss how this game works along with how you can gain a long-term advantage with it. I’ll also cover the basics of bonus accumulator slots and why they’ve largely disappeared.

What Is a Bonus Accumulator Slot Machine?

A normal slot machine offers bonuses at random points. The game’s random number generator (RNG) determines when you receive a special prize.

Accumulator slots differ because they offer bonuses at specific points in the game. You unlock these bonuses by collecting special symbols and filling a meter.

S&H Stamps is one of the most-classic bonus accumulator slots. This game, which is based on trading stamps that were available decades ago, sees you accumulate green stamps to increase a meter.

You’ll receive a bonus payout once you’ve earned enough stamps to completely fill the meter.

S&H Stamps was highly popular during its heyday. Unfortunately, land-based casinos got rid this slot machine and similar games.

But you can still find other bonus accumulators in Las Vegas casinos. Just look for machines featuring a meter that triggers prizes when it’s filled.

What’s the Advantage to Playing Bonus Accumulator Slots?

One of the best things about bonus accumulator slots is that you can actually gain a theoretical advantage with them.

You have a roadmap on when bonuses are paid in accumulator slot machines. Contrast this to normal slots, where the bonuses are delivered randomly.

You need to sit down to a machine when the bonus meter is nearly full. Playing at this point gives you an advantage, because other players have already contributed the necessary credits to boost the meter.

You simply have to finish the job by getting the last few remaining symbols and fill the meter.

Of course, this by no means guarantees that you’ll win the bonus right away. You could instead be waiting a while if the special icon doesn’t show up.

But the idea is that you’ll eventually win profits by repeatedly taking advantage of these situations.

Why Did Bonus Accumulator Slot Machines Disappear?

Advantage players look for inefficiencies in casino games and exploit them.

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Some of these players take advantage of house-banked games like blackjack, where the casino is supposed to hold an edge. But a skilled card counter can swing the edge in their favor.

Casinos hate these type of gamblers because they directly affect the house’s bottom line. They don’t, however, care when you take advantage of a bonus accumulator slot.

The reason why is because the house is still making money on these games regardless of who gets the bonus. You’re instead exploiting the previous money that was bet on a slot machine to increase the meter.

At one time, casinos had a lot of different bonus accumulator slots like S&H Stamps. Many advantage players formed teams to capitalize on these opportunities and make a decent living.

The only problem is that some of these teams started being too aggressive with their tactics. They would hang around games that were about to deliver a bonus and make the players feel uncomfortable.

This type of advantage slots player is referred to as a “vulture,” because they hover over games and swoop in as soon as they can.

Again, casinos don’t mind who wins the prize since they’re still making a profit. But they also don’t want vultures making good customers feel uncomfortable.

Things got to the point where regular players and vultures began having both verbal and physical fights over the latter’s aggressive techniques.

Casinos responded by banning certain vultures who caused trouble. But this didn’t get rid of the problem entirely.

Rather than continuing to wait for instances to arise so that they could ban more troublemakers, most casinos simply got rid of bonus accumulator slots.

Plants vs. Zombies 3D Age of Egypt Is One of the Few Remaining Bonus Accumulators

It’s now extremely difficult to find bonus accumulator slot machines in Vegas or anywhere else. But there are still rare cases such as Plants vs. Zombies 3D Age of Egypt.

Created by International Game Technology (IGT), this slot has been available in Vegas casinos for the past couple of years.

Plants vs. Zombies features a bonus meter that you fill by accumulating brains symbols. Just like any other bonus accumulator, this slot delivers a reward when enough brains are collected.

You need 500 points total to fill the meter. Therefore, your edge increases as the meter moves closer to 500.

The amount you must bet to play this game depends upon the Vegas casino. However, the general range across the city is $0.40 to $4 per spin.

The upper amount is a lot to spend on a single round, but placing larger wagers increases the chances that you’ll get brain symbols. So the most-effective strategy is placing the largest bets available.

Also note that every brain symbol adds 56 points to the meter. You need 10 brains to trigger the bonus, with any extra points contributing to the new meter.

Where Can You Find the Plants vs. Zombies Slot Machine?

Plants vs. Zombies 3D Age of Egypt is one of the more-popular slot machines in Vegas. Therefore, this is the easiest bonus accumulator game to find.

Plants vs. Zombies is offered in a bank of machines at the McCarran International Airport or casinos throughout the city. Other games that are often nearPlants vs. Zombies Age of Egypt include Sphinx 3D and Dreams of Asia.

The artwork on the machine’s case is bright and colorful, making it easy to see from a distance. Therefore, you shouldn’t have much trouble finding this game, provided the casino in question has it.

Is It Worth Playing Plants vs. Zombies 3D Age of Egypt?

Playing Plants vs. Zombies Age of Egypt offers a few notable benefits:

• This is a fun game – Especially if you love the Plants vs. Zombies mobile series.
• Plants vs. Zombies 3D Age of Egypt offers good graphics and plenty of other cool features.
• You can actually win long-term profits with this slot.

The latter is the entire purpose behind this post. Playing Plants vs. Zombies 3D Age of Egypt gives you a real chance at making money, which isn’t common in gambling.

This is especially the case when considering that most advantage play techniques like card counting, hole carding, and shuffle tracking will get you booted from the casino.

In other cases, you have to compete against other players to gain an edge. Poker and daily fantasy sports (DFS) are two of the toughest forms of gambling due to how you’re competing against highly skilled opponents.

Bonus accumulator slots are nothing like this, though, because they don’t require intensive strategy nor put you in danger of being thrown out.

Instead, the only strategy involved is looking for a bonus accumulator machine where the meter is near the top. As long as you’re not irritating other players and drawing the ire of the casino staff, you’ll be able to take advantage of these opportunities again and again.

The trouble comes in, though, when considering that there are still vultures around. These advantage players work in teams and travel the Strip looking for nearly full bonus meters.

These players aren’t friendly when you’re infringing upon their territory. They especially become agitated if you cut in front of them to take advantage of a quality opportunity.

Unless you’re dead set on making a living through slot machines, I wouldn’t recommend trying to beat vultures at their own game.

You can always form your own slots team and have safety in numbers. But this can still result in disputes and get your team banned from one or more casinos.

If you aren’t interested in all the drama, you can take an alternative approach. Rather than waiting until the meters are almost full, you can play Plants vs. Zombies 3D Age of Egypt when there’s anywhere between 200-300 points on the meter.

This won’t give you positive expected value (+EV). But it’s still better than playing when the meter is at 100 points or less.

If you’re a casual player who’s looking to try a fun game like Plants vs. Zombies, then this is the perfect scenario. You can enjoy slots and increase your chances of winning by playing when the meter is halfway full.

You might also get lucky and win profits anyways thanks to a hot session combined with the Plants vs. Zombies Age of Egypt bonus payouts.

What Other Types of Slots Can Give You an Advantage?

You may or may not still be interested in using Plants vs. Zombies 3D Age of Egypt to gain a long-term edge. Choosing the bonus accumulator route is difficult when considering that there aren’t many opportunities available, and you’ll be in competition with other advantage players.

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If you’d like to make slots profits through other methods, then standard progressive slot machines and mystery progressive games are both legitimate choices. Here’s a closer look at how each of these strategies works.

Regular Progressive Slot Machines

As you may know, progressive slot machines feature a jackpot that grows with every wager. This means that a jackpot can start off relatively small and increase far beyond its original value.

Excitement builds as a progressive payout climbs to bigger heights. After all, a huge jackpot means that you have a chance to win life-changing money.

But there’s another reason why you should get excited about these opportunities: you can gain +EV when the prize reaches a certain amount.

The problem with regular progressive slots is that you don’t have enough information to know exactly when this point is. Gamemakers don’t offer crucial information, and it’s impossible to know exactly when a normal progressive jackpot will be won.

What you can do, though, is make an educated guess based on the starting and current value. Here’s an example:

• A progressive jackpot starts at $10,000.
• It’s now offering $180,000.
• You believe this 18x increase has created +EV.

Again, you won’t know exactly when a progressive slot is offering a favorable situation. But you can at least guess by looking at the difference between the original and current values.

Playing when the jackpot has grown large enough will theoretically offer +EV. A top prize that grows considerably also adds a significant amount to the return to player (RTP).

• A progressive payout starts at $5,000.
• Base RTP is 95%
• The jackpot is now worth $200,000.
• The RTP has increased to 102.5% due to the bigger top prize.

The only problem with playing for regular progressive jackpots is that you’re highly unlikely to win. This is even the case with the “smaller” prizes that are worth between $5,000 and $10,000.

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Sure, you technically have a chance to win the jackpot with any spin. But the odds usually range in the millions or even hundreds of millions.

Given that you probably won’t win the jackpot, you’ll be dealing with the game’s base RTP – rather than the +EV payback – the vast majority of the time.

This makes it a wise to choose big progressive jackpots that also feature attractive base RTP.

NetEnt’s Mega Fortune slot features a multimillion-dollar jackpot and 96% base RTP. Microgaming’s Mega Moolah, on the other hand, only offers 88% RTP.

I still recommend waiting until a progressive jackpot has grown considerably before playing so that you can gain an edge. But you should always look towards slots with high base RTP as a fallback plan.

Mystery Progressive Slot Machines

A mystery progressive slot machine is unique in that its jackpot is paid at a specific amount. For example, a mystery progressive game might have to pay its top prize at $250.

This creates a unique situation where you can actually calculate the +EV point. You can then start playing one of these games once it’s offering an advantage.

Here’s a formula that you can use to figure out when mystery slots are giving you an edge:

• Formula: p = j x (h + c)
• p = Positive expected value
• m = Jackpot amount (when paid)
• c = Contribution to jackpot (% of each wager that funds jackpot)
• h = House edge (uses average value of progressive jackpot)

Knowing the formula is a good start. But you also need to know the variables that you’ll use in the calculations.

You won’t have all the information you need for specific games. However, you can make estimations for the jackpot contribution and house edge if needed.

The contribution for most progressive slots range is between 1% and 2%. Therefore, you can use anything between this range for the formula.

The house edge is easy to find for most online slots. But land-based slots makers don’t release this info for their games.

You instead have to look at state gaming reports and see how much each coin denomination pays on average. For instance, you might find that dollar slots in Nevada offer 95% RTP (5% house edge).

Here’s an example on putting all of this information together:

• Jackpot amount = $300
• Contribution to jackpot = 2%
• House edge = 5%
• Formula = $300 x (0.05 + 0.02) / (0.05 + 0.02×2) = 233.33
• You’ll experience +EV when the jackpot is at $233.33 and beyond.

The nice thing about playing mystery progressive slot machines is that there’s not as much competition for an advantage. Unlike with bonus accumulators, you can’t just walk around the casino and look for a full meter to spot a mystery slots edge.

A good strategy for these games is to scout their locations in various casinos ahead of time. You should also learn when they pay jackpots and calculate formulas ahead of time so that you can instantly see a +EV point.

You might even consider forming a team if you live in Las Vegas, so that you can spread out and find a larger quantity of +EV opportunities.

Conclusion

Not too many bonus accumulator slot machines are available today. But you can still find these games in Las Vegas in rare cases.

Plants vs. Zombies 3D Age of Egypt is a perfect example of a bonus accumulator slot. This game sees you unlock a bonus after earning enough brains to reach 500 points.

You can gain a long-term edge by hanging around Plants vs. Zombies 3D machines and taking advantage whenever the meter nears 500 points.

The only problem here is that plenty of Vegas locals have the same idea. And these vultures can get possessive over bonus accumulator slots.

You can avoid this drama by playing Plants vs. Zombies 3D Age of Egypt when the bonus meter is closer to 200-300 points. This still gives you a solid chance to win money without butting heads with vultures.

If you’re serious about advantage play, you can also look towards progressive slots.

Regular progressive slot machines can offer an advantage when the jackpot grows to a certain point. You won’t find any fancy formulas to calculate this point, but you can make educated guesses.

Mystery progressive machines do feature a formula that can be used to determine the +EV point. Knowing where mystery slots are and how to use this formula is a winning combination for profits.

Even if you’re not planning on using slots to supplement your income, it’s still fun to look for edges and take advantage.

Playing Plants vs. Zombies

There is a reasonably big win from regular play available. This is 20,000 coins for 5 of the wild zombie symbols on a win-line. Wilds do come stacked in many instances, which means it is possible to hit multiple 5 of a kinds from a single spin. In addition to awarding the biggest prize, this wild also substitutes for the regular plant and zombie symbols (though not the bonus symbol or specials).

After this big wild win, the others are comparatively much smaller. 5 of the Plants v Zombies logos is worth 500 coins, the man eating plant pays 300 coins for 5 and the sunflower and other flower pays a max of 250 coins. Playing card symbols, ace down to 10 are also in play.

There are 2 separate on-reel features, which will occur at random. Crazy Dave will appear on the reels, wearing a saucepan on his head. He will say something unintelligible out loud – though you will see the message in a speech bubble. This can be one of two things:

‘The Zombies are coming!’. Zombies appear in different ways, sometimes on ropes from above the reels, other times on a pogo stick bouncing across them. They turn random symbols into wilds – giving you extra wins.

‘The Wild Gargantuar is coming!’. Here the big zombie will walk across the reels, hitting the bottom of some of them with a telephone pole. This turns entire reels wild before you spin.

Bonus Games

Plants Vs Zombies Slot Machine

There are 4 separate bonus features, each of which is triggered by hitting bonus symbols on reels 1 and 3 and then a special symbol for that bonus on reel 5.

Here are the different bonuses:

Gargantuar Free Spins: Here you get 6 free spins. What happens is the wild Gargantuar walks across the reels as you play, first turning reel 5 wild, then 4 and 5 together. As he walks you get 2 wild reels moving from the right to the left – until you are left with just 1 wild reel (reel 1) on the final spin. This can add a lot of wins. The spins where reels 1 and 2 or 2 and 3 are wild are certain to hit on all 20 win-lines.

Cherry Bomb Free Spins: Here you have a race against time before the zombies eat your brains. They start from the bottom of the screen and are beaten back by a chili pepper symbol which appears on the reels. You’ll get cherries on the reels too, these explode and turn into different symbols.

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There is a pick-em game involving a garden in the light and dark. Here you choose objects to win cash prizes. If you find Crazy Dave then you move to a new garden level, if you find a zombie then your bonus game ends. The other game is the Zen garden, which involves picking watering cans and growing plants. If you water the right plant then you can unlock the progressive jackpot through this particular bonus.

How Plants vs. Zombies Works

This is a 20 win-line game, those lines are fixed, so you only need to decide how much to spin for and you are good to go. This starts at just 25c, with a huge $500 per spin top limit. Wins are scored from left to right, with 3 symbols needed for each prize. There are stacked symbols and wilds in play, which means that multi-line wins are common.

The graphics of this game are excellent. Reels are smaller than on many games, to accommodate the garden setting. This allows room for the animated characters (zombies and Dave) to walk in front of the reels and either add wilds or deliver you a message. Crazy Dave does not always start a bonus feature. Sometimes he will appear and just talk crazy before walking off again.