You may have noticed a jackpot total displayed above a slot machine, changing gradually as games are played. Unlike a fixed jackpot, which stays at the same value, a progressive jackpot can increase over time.
But where does that growing total come from? How is the jackpot triggered, and what should you know before playing? Here is a straightforward guide to how progressive jackpot games work, without the myths or complicated casino terminology!
What is a progressive jackpot?
A progressive jackpot is a prize that can grow as eligible games are played. A small proportion of qualifying stakes may contribute to the prize pool, allowing the total to increase from a predetermined starting value.
Once the jackpot is triggered, it is awarded according to the rules of the game. The total will then usually reset to its starting amount and begin building again.
Progressive jackpots are commonly associated with slot games, although the way they work can vary. Each game will have its own trigger, eligibility requirements and prize structure, which should be clearly explained in the information provided.

How do progressive jackpots work?
Progressive jackpot slots are connected to a prize pool, either individually or as part of a wider group of machines. As qualifying games are played, the displayed total may continue to increase.
Depending on the machine, the jackpot could be triggered by landing a particular combination of symbols, reaching a bonus feature or through a random event. Some games also have several jackpot levels, each with its own value and conditions.
The key difference between a progressive jackpot and a fixed jackpot is simple: a fixed prize remains at a set amount, while a progressive prize can grow until it is triggered.
Although watching the total rise is part of the format, it does not mean that the jackpot is becoming “due”. Every qualifying game continues to operate according to its stated rules.
How to play progressive jackpot games
If you are wondering how to play progressive jackpot games, begin by checking the instructions for the individual machine. These will explain what qualifies for the jackpot and how the different features work.
Before playing, it is worth checking:
- Which stakes or features are eligible
- How the jackpot can be triggered
- Whether the machine offers one prize level or several
- The jackpot’s starting value and any upper limit
- Whether it is linked to other machines or casino venues
Some games require a particular stake or feature to qualify, while others work differently. The information displayed on the machine is therefore more useful than general advice or common jackpot myths.

What types of progressive jackpots are available?
Not all progressive jackpot games build their prize pools in the same way. The most common formats include:
- Standalone jackpots, which are attached to one machine
- Local jackpots, which connect several machines within the same casino
- Networked jackpots, which link games across multiple participating locations
- Tiered jackpots, which offer several prize levels within the same game
You may also come across “mystery” progressive jackpot slots. With this format, the prize is triggered randomly rather than by landing a specific combination of symbols. The game instructions should make it clear which format is being used.
Progressive and fixed jackpots compared
The main appeal of a progressive format is the changing prize total, whereas fixed jackpots offer a set value that does not increase alongside eligible play.
Progressive games can sometimes have more eligibility conditions, so it may take a little longer to understand exactly how each machine works. Neither format offers a guaranteed outcome, and changing machines or waiting for a jackpot to grow cannot predict when it will be triggered.
If anything is unclear, simply ask a member of the casino team to talk you through the rules before you start.
Where can you play progressive jackpot slots?
Progressive jackpot games are available at licensed casinos and through regulated online operators, although the machines, formats and prize structures will differ between venues.
A selection of slot games is available across Napoleons Casinos in Sheffield, Leeds, Bradford, Hull and Manchester.
During your visit, the team can help you understand how a particular machine works, including its jackpot type, available features and eligibility requirements.

Keeping play enjoyable
Progressive jackpot games are designed as entertainment, so decide how much time and money you are comfortable spending before you begin. Take regular breaks, keep within your chosen limits and remember that every outcome is uncertain.
If gambling stops feeling enjoyable or you find yourself chasing losses, take a break and seek support. Further information is available through Napoleons’ sensible gaming guidance and GamCare.
All Napoleons Casinos are strictly for those aged 18 and over, and operates the Challenge 25 check on all customers.