What is the Wonderpot?
The WonderPot is a four-tier progressive jackpot shared across a network of casinos (it's run by the WOWPartners group, so you'll find it on several Bonus Crab casinos — for example Robocat and Golisimo). It's a shared prize pool that grows with every player's contribution until someone wins it. And it's big: the headline Wonderpot regularly sits over €1,000,000 (the live ticker in our screenshots showed around €1.18 million). It's a genuine life-changing prize built right into the casino, and a big draw at any casino that carries it.
Unlike a one-off bonus, the Wonderpot is always live and always growing — and every qualifying spin gives you a shot at it.
The four jackpot tiers
The Wonderpot isn't a single prize — it's a four-tier progressive jackpot, so there's something hitting far more often than just the top prize:
- Flash — the smallest and most frequent (often tens of euros).
- Boost — a mid-small tier (often hundreds of euros).
- Ultra — a big tier (often tens of thousands of euros).
- Wonderpot — the headline tier, the seven-figure prize (€1,000,000+).
Every spin gives you a chance to crack any of the four tiers. The jackpots grow from the contributions of all players, so they climb constantly until they drop.
How it works (step by step)
- Find a participating slot — the Wonderpot runs on selected slots,
shown in the dedicated Wonderpot / jackpot category. Popular examples include slots like Sweet Bonanza and Big Bass titles — but that's just an example; it's not the full list.
- Opt in — tap "join now" and choose your contribution to be eligible.
You can opt out again any time in the rules section. Joining doesn't change your normal game or its results.
- Choose your contribution — add 10%, 20% or 30% of your stake as your
jackpot contribution (added on top of your bet). The higher the percentage, the better your chances of triggering a jackpot. Minimum contribution is €0.01; you can change it any time.
- Spin for the jackpot — every spin can crack one of the four tiers.
Winners are chosen fairly and at random by a certified system. The jackpot RTP is at least 80%. Each round has a hidden target amount — the player whose contribution pushes the pool past that target wins the drop, so it can land at any moment.
- Win the wheel — when you win, you spin a special wheel to reveal your
jackpot prize, and it's credited to your account automatically.
Tips for the Wonderpot
- Higher contribution = better odds — 30% gives the best chance, but it adds
more to each spin, so balance it against your budget.
- Play the eligible slots — only participating slots feed the Wonderpot;
check the jackpot category to see which ones qualify right now.
- It's random — no spin is "due"; the certified system picks winners at
random, so there's no pattern to chase.
- You can opt out — if you don't want to contribute, you can leave the
jackpot any time in the rules section.
- Play responsibly — a seven-figure prize is exciting, but the contribution
adds to your spend. Set a budget; the jackpot is a bonus, not a plan.
Why it matters (for the review)
A live, four-tier progressive jackpot sitting over €1,000,000 — with a clear, player-controlled contribution system — is a rare, premium feature for this type of casino. At casinos that carry it (such as Robocat and Golisimo) it sits right alongside the Bonus Crab feature as a shot at a life-changing win.
Good to know (terms apply)
Jackpot amounts change constantly (they grow until won), the participating slots and tier values vary and can change over time, and the jackpot is subject to the casino's terms and conditions. The €1,000,000+ figure is the live ticker at the time of writing, not a guaranteed or fixed amount. 18+. Play responsibly.