18+Play responsibly. Independent site — we earn commission from operators.
Gambling Helpline NZ: 0800 654 655

Games, RTP & Strategy · Reviewed July 2026 · by Liam Fitzgerald

Progressive Jackpots Explained

A progressive jackpot that reads NZ$3.2 million didn't come from nowhere — it's built from a tiny slice of every bet placed across potentially thousands of players, on potentially dozens of casinos, over weeks or months. Here's how the mechanics actually work.

Last updated: 9 July 2026 · 7 min read

Key takeaways

  • Progressive jackpots grow because a small percentage of every bet placed on the game (often 1–2%) is diverted into the jackpot pool instead of the base payout table.
  • Networked jackpots pool contributions from many casinos and players simultaneously, which is how a single game can build a multi-million-dollar prize.
  • Standalone jackpots reset lower and grow slower, but are contained to a single casino's player base.
  • Kiwi's Treasure runs a 167-pokie Mega Moolah-style jackpot network, one of the larger jackpot game selections among the casinos we review.

How a progressive jackpot pool grows

Unlike a fixed-jackpot pokie where the top prize is a set number written into the paytable, a progressive jackpot pokie routes a small percentage of every single bet — commonly somewhere around 1–2% — into a separate, growing prize pool instead of the game's normal payout structure. That's also why progressive jackpot games typically show a lower base RTP than an equivalent non-jackpot pokie: some of the money that would otherwise return to players through regular wins is being redirected to build the jackpot instead. The jackpot keeps climbing until someone hits the trigger condition, at which point it pays out in full and resets to a lower seed value to begin building again.

Networked vs standalone jackpots

A networked (or "wide-area") progressive links the same jackpot pool across multiple casinos and sometimes multiple countries simultaneously, which is how jackpots like the Mega Moolah series have historically paid out multi-million-dollar prizes — thousands of players across many operators are all feeding the same pool at once. A standalone progressive, by contrast, only pools contributions from players at a single casino (or sometimes a single game instance), which means it grows more slowly and typically pays out a smaller total, but the odds per player can be comparatively better since fewer people are competing for the same pool. Kiwi's Treasure's 167-pokie jackpot network is an example of a broad in-house networked structure spanning many game titles under one operator.

Your real odds of winning

Progressive jackpot odds are typically in the tens of millions to one range for the top-tier prize — genuinely comparable to lottery-level odds, even though the game feels more interactive than a lottery draw. This isn't a reason to avoid jackpot games entirely; it's a reason to treat them the way you'd treat a lottery ticket: an entertainment purchase with a small chance of a very large outcome, not a strategy for steady returns. Smaller "minor" and "mini" jackpot tiers within the same networked game usually trigger far more often and pay out more modest amounts, giving you more frequent (if smaller) jackpot-style wins along the way.

Where to find jackpot games

Among the casinos we review, jackpot-style progressive pokies appear at five of the nine operators, with Kiwi's Treasure's 167-game network being the most extensive single selection. Spin Casino, JackpotCity, All Slots, Lucky Nugget and Crocoslots all carry a selection of jackpot titles alongside their standard pokie libraries too. If chasing a specific jackpot game is your priority, check the current jackpot size and game availability directly on the casino's site before you sign up, since jackpot pools and specific titles rotate and reset.

Frequently asked questions

Do progressive jackpots ever stop growing?
No — by design they only reset after paying out. Some operators do set a jackpot 'must-drop-by' ceiling on certain games, guaranteeing a payout before the pool reaches an extreme size, but this varies by game and provider.
Is it true that jackpots are more likely to pay out when they're bigger?
There's no established mechanism by which a larger jackpot pool changes your individual odds on any given spin — each spin's outcome is determined independently by the RNG, regardless of the current jackpot size.
Which casino has the biggest jackpot selection among the ones you review?
Kiwi's Treasure's 167-pokie Mega Moolah-style network is the largest single jackpot selection among the nine casinos we review, though its overall licensing transparency is weaker than several competitors.

Responsible gambling

Jackpot games carry lottery-level odds for the top prize — treat any money spent chasing one as an entertainment cost you're comfortable losing entirely, never as money you're relying on to come back.

Gambling should stay fun. If it stops being fun, stop.

Free, confidential support is available 24/7 through the NZ Gambling Helpline, and every casino we list must support deposit limits and self-exclusion tools before we'll recommend it. If you're worried about your own play or someone else's, reaching out early makes the biggest difference.

Written by Liam Fitzgerald

Games & Software Analyst

Liam worked in QA testing for a slot-studio developer before joining the team, checking RTP disclosures and RNG certification paperwork. He catalogues game libraries and provider partnerships across every reviewed casino.

Read full bio & other reviews →

Related reading