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How Progressive Jackpots Work in Online Casinos

How Progressive Jackpots Work in Online Casinos

Progressive jackpots are every player's ticket to turning their small bets into a life-changing win. Slots with jackpots offer the chance to win massive payouts that grow larger every time someone plays. However, how do these jackpots actually work? What makes progressive jackpots grow, and how are they triggered? In this article, you will learn more about attributes that make progressive jackpots one of the most thrilling features of online gambling.

⚠️ Disclaimer: Gambling involves financial risk and is intended for entertainment purposes only. Also, this content is for informational purposes and does not constitute financial or betting advice.

What is a Progressive Jackpot?

A progressive jackpot is a type of casino prize that grows over time, increasing with every bet placed by players, particularly after losing the previous jackpot. Progressive jackpots may also appear as features in real money slots, and they can get into millions before eventually being won. Each time a player makes a wager on a progressive slot game, a small percentage of that bet is added to the jackpot pool. This continues until one lucky player hits the winning combination or triggers the payout feature. 

How Progressive Jackpots Grow

"Slots are the bread and butter of revenue for a casino." These are words from Juan SAA in an interview with the publication department of the University of Nevada, Las Vegas. Truthfully, slots have emerged as a popular choice among players over the years, especially with thrilling inventions like progressive jackpots. More interestingly, progressive jackpots' ability to grow adds to the game's thrills. 

Progressive jackpot increases every time a player makes a bet on a linked game. A small portion of each player's wager, which is usually between 1% and 5%, is then added directly to the jackpot pool. This means the more people who play, the faster the jackpot grows. It also means that a progressive jackpot involves a collection or pool of betting activities.

In some progressive jackpots, the game is usually available across multiple top slot sites UK. That means that players from different platforms contribute to the same prize pool, which gives jackpots the chance to grow incredibly fast. Software providers also manage these jackpot pools and ensure contributions and payouts are handled securely and transparently.

A simple mathematics behind jackpot growth

The concept of a progressive jackpot may seem like a lot, but some calculations actually drive it. Here's a simple breakdown of the simple mathematics behind jackpot growth.

  1. Contribution rate: Each time a player places a bet, a fixed percentage goes into the prize pool. For example, if a game has a 4% contribution rate and you bet £1, then £0.04 goes to the jackpot pool.
  2. Seed amount: When a jackpot is won, it resets back to base amounts, called the “seed”. Let's say the seed is £100,000; that's the minimum amount the next winner will receive before new players' contributions begin to boost the game again.
  3. House edge built-in: Slots casinos usually have a house edge, so they still earn from each bet while also keeping the players thrilled.

Examples of popular progressive jackpot games

Progressive jackpots are featured in some top UK slot games, which have also contributed to their popularity and wide availability across reputable slot casinos.

The table below shows some of the popular progressive jackpot games to look out for, including their developers and features.

Game title

Developer

Notablefeatures

Mega Moolah

Microgaming

Jungle theme, bonus wheel, 4 jackpot tiers

Mega Fortune

NetEnt

Luxury theme, free spins, jackpot bonus game

Divine Fortune

NetEnt

Ancient Greece theme, falling wilds, re-spins

Hall of Gods

NetEnt

Norse mythology, expanding wilds, bonus game

Arabian Nights

NetEnt

Simple gameplay, classic designs, free spins feature

Case study: Growth pattern of Mega Moolah

A good number of Americans spend on lotteries or jackpot games, as the New York Times reported that three jackpots alone surpassed $1 billion in 2024. This growth is likewise evident in Mega Moolah, a progressive jackpot slot developed by Microgaming that is popular for generating large jackpot wins.

Mega Moolah was launched in 2006 and has recorded breaking wins over the years. One of the most famous wins was in 2015 when Jon Heywood won €17.8 million, which at the time made Mega Moolah the largest online jackpot ever recorded by the Guinness World Records. Since then, the jackpot has continued to grow rapidly, often reaching and surpassing the €10 million mark before being won. Notably, Mega Moolah's jackpot has triggered a win roughly every 2-3 months, with huge payout rates.

How Progressive Jackpots are Triggered

Progressive jackpots aren't just based on luck. They also depend on how the game is designed to release the jackpot. Thus, different games use different methods to trigger these big wins, and the most common ways are highlighted below.

  • Random triggers: Many progressive jackpot games use a completely random trigger system. This means that any spin can win, regardless of the symbols or combinations.
  • Symbols combinations: Some jackpots require players to land a specific set of rare symbols (often wilds or bonus icons) on an active payline to trigger the jackpot.
  • Bonus rounds: A number of games feature bonus rounds or mini-games can serve as the gateway to jackpot wins. Once triggered, the bonus might involve spinning a wheel.
  • Minimum bet requirements: Some progressive jackpots can only be triggered if you are betting above a certain minimum requirement or playing at maximum bet amounts.

Odds and RTP of Progressive Jackpot Games

a brightly lit casino room with slot machines

Progressive jackpots are thrilling because of the massive prizes they offer. However, it's essential to understand the odds of winning and how RTP (return-to-player) works in these types of slots.

The odds of winning a progressive jackpot are tough, which is between 50 and 100 million to one. However, it's still much better than trying to win a lottery. Always remember that "The only way to beat the odds is to be smart and disciplined".

In a progressive jackpot, the portion of the RTP is tied to the jackpot win. This means that the base game may have a slightly lower RTP compared to regular slots. For example, a progressive slot might have an RTP of 94%. Of that, 91% might go to regular and safe UK casino gameplay and 3% to the jackpot pool. Unless you win the jackpot, you're effectively playing a 91% RTP game. Progressive jackpots also have high volatility, which means wins may be less frequent but are potentially much larger. 

Conclusion

Progressive jackpots are not fast-paying slots, but they offer the potential for life-changing wins from just a single spin. 

However, it's also essential to understand how progressive jackpots work. The odds of winning are very low, and the RTP is often lower than standard slots, but if played smartly and responsibly, progressive jackpot games can spice up your online gaming experience.

Learn more about choosing a safe, regulated experience at Prime Casino.

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