Three, and they pay differently. Mystery runs four levels and pays the trigger in full, Community runs four levels and splits with recently active players, and Bonanza Collector is one level divided among a set number of winners.
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Three jackpots, and they do not pay the same way
Jackpot is one word covering several quite different machines, and the difference is not cosmetic. It decides whether one person is paid or several, whether you need to have triggered anything to receive money, and how the prize is divided when it lands. Slots99 runs three, and each behaves differently on a hit.
All three build across eligible slots as people play them, and any qualifying spin can trigger one. You must be 18 or over.
Mystery Jackpot: four levels, winner takes everything
The Mystery Jackpot runs four levels, and each drops at a random point inside its own range. Whoever triggers a level receives the whole prize for it.
What makes it a mystery is that the drop point is set inside a range rather than at a fixed figure, so nobody can look at a counter and know it is due. A level that has climbed high is not therefore closer to landing in any way you can use, and a level that just paid is not cold. That is the honest version, and it is worth saying because the opposite belief is extremely common.
Community Jackpot: four levels, shared out
The Community Jackpot also runs four levels, but the payout works quite differently. When a level drops, the prize is split between the player who triggered it and a pool of other players who were active recently enough to qualify.
The consequence is that you can be paid from this one without triggering anything, simply by having been playing eligible games at the right time. It is the only jackpot here where somebody else winning is also good news for you.
Bonanza Collector: one level, several winners
Bonanza Collector is a collector jackpot with a single level. It accumulates over time and then divides among a set number of winners rather than paying one person.
One level is not a limitation, it is what a collector jackpot is: the pool builds in one place and the split happens at the end. It produces fewer, larger events than a multi-level jackpot does.
What qualifies a spin
Jackpots build across eligible slots, and eligibility is per game rather than per category. The game itself shows whether it contributes, and the live value for each pool sits on that jackpot's own page, because those figures move constantly and any number printed here would be wrong within the hour.
Playing with bonus funds is the case to check before you rely on it. Bonus-funded play may be excluded from contributing to a pool or from triggering one, so the bonus conditions are worth reading before you use bonus money on a jackpot game.
What no jackpot does
None of them are due, and none of them are owed. A progressive pool is not a savings account that must eventually pay out to you specifically, and the size of a counter tells you what has accumulated rather than what is about to happen. Every qualifying spin has the same chance as the one before it, which is what random means and is the whole basis on which these are run.
There is also no strategy available. You cannot influence a drop by timing, by stake pattern or by which eligible game you choose, beyond the plain fact that you must be playing an eligible game to be in it at all.
Where to find them
The Exclusive Jackpots page carries all three with their current values. Eligible games are spread across the catalogue and you can browse it through All Slots or by theme in the collections.
Playing responsibly
A rising counter is designed to be compelling, which is the reason to be deliberate about it. Deposit, loss and wagering limits are in your account settings, take effect immediately when lowered, and sit alongside reality checks, cooling-off and self-exclusion. Read responsible gaming. A jackpot is entertainment with a very long tail, never a plan.
On the Community Jackpot, yes. Its prize is shared between the trigger and a pool of recently active qualifying players.
No. Mystery levels drop at a random point inside a range, so a high counter is not closer to landing in any way you can act on, and a level that just paid is not cold.
Eligibility is set per game, not per category. The game shows whether it contributes, and live pool values are on each jackpot’s own page.
Not always. Bonus-funded play may be excluded from contributing or triggering, so check the bonus conditions first.
No, beyond playing an eligible game. Timing, stake pattern and game choice do not influence a drop.
On the Exclusive Jackpots page. The values move constantly, which is why they are not printed here.