Mega Joker slot review

What kind of slot is Mega Joker?

Mega Joker is NetEnt’s take on the old-style fruit machine: three reels, three rows and five paylines. What sets it apart is a second set of reels used in Supermeter mode, and a progressive jackpot that can be won at random.

It’s often listed among the highest-RTP slots, but that figure rests on a specific way of playing. Understanding the two modes is the key to understanding the game.

How the features work: base game, Supermeter and jackpot

The base game

You spin the lower 3 × 3 reels across five paylines. There’s no wild to help complete lines. When the Joker lands, it awards a mystery prize rather than substituting for other symbols.

Moving a win into Supermeter mode

After a base game win, you have a choice: collect the win to your balance, or send it up to Supermeter mode. Supermeter plays on the second set of reels, which use a higher paytable than the base game. The help screen explains how Supermeter stakes and collection work in your version.

The progressive jackpot

A progressive jackpot grows as people play and can be won at random. In Mega Joker it can only drop on base game spins, not in Supermeter mode. There are no free spins in the game at all.

We don’t give odds for the jackpot or for Supermeter wins. Third-party figures aren’t confirmed by NetEnt, and every spin is decided by a random number generator.

Mega Joker RTP: what ‘up to 99%’ really means

The 99% figure is a ceiling, not an average for everyone. It applies at the top stake when you use Supermeter. Play at other stakes, or collect every base game win instead of moving it up, and the return is lower. The exact figures for each way of playing are in the game’s help screen, and you should read them before you start.

There’s a UK wrinkle too. Online slot stakes are capped at £5 a spin for players aged 25 and over, and £2 for those aged 18–24. Check in the help screen what the top stake is in the UK version your app runs, because the stake that gives the best return may differ from versions offered elsewhere.

The lower rows are illustrations, not Mega Joker figures; they show how much the RTP you actually get changes your costs. Our guide to finding a game’s RTP in an app explains where the numbers sit.

High volatility on a £20 budget

High volatility means most of the game’s return is concentrated in less frequent, larger results. Even at a 1% edge, a £20 budget can disappear quickly between wins.

The expected loss column assumes the top-RTP way of playing, which may not apply at 10p or 50p. The bigger practical point is the middle column: at higher stakes on a volatile game, £20 might last only a handful of spins. If you play, choose the stake that matches how long you want to play, not the one that sounds most efficient.

Playing Mega Joker on your phone

Mega Joker opens inside your casino app on iPhone and Android with no separate download. The three-reel layout is simple, but with a second set of reels for Supermeter there’s more on screen than a basic fruit game. Try both orientations if your version allows and see our tips on landscape vs portrait mode.

1. Open your casino app and log in; age and identity checks must be done before you can play.
2. Search the lobby for “Mega Joker”. Progressive games are sometimes grouped in a jackpots section.
3. Open the help screen and read the RTP for each stake and mode, plus how Supermeter works in this version.
4. Pick your stake within the UK cap and tap to spin. After a win, decide whether to collect or move to Supermeter.
5. Watch the net spend and session time on screen, and collect your balance when you reach your limit.

Jackpot slots use little data, but a dropped connection mid-spin can be unsettling. The result is held on the server; our page on what happens if your app crashes mid-game covers this.

How UK rules treat Mega Joker’s progressive jackpot

Progressive jackpots in Great Britain are governed by the Gambling Commission’s technical standards. RTS 9 on progressive jackpot systems (opens in a new tab) sets out how operators must describe and run them, and RTS 3 (opens in a new tab) requires game rules and information about the likelihood of winning to be available to players.

In practice that means the game’s help pages should tell you how the jackpot is won and that it’s only available on base game spins. If you can’t find that information, ask the casino’s support team before you play.

• Stake limits: £5 per spin at 25 and over, £2 at 18–24 (details).
• No autoplay and no turbo: each spin must be started by you and take at least 2.5 seconds.
• Feature buys: since a Gambling Commission warning in January 2020, feature buy-ins are not offered to British players; Mega Joker has no free spins round to buy in any case.
• Spend display: your net spend and time played are shown in real time.

Who makes Mega Joker? NetEnt

NetEnt was founded in 1996 and is based in Stockholm. It has been part of Evolution since December 2020, alongside Red Tiger, Big Time Gaming and Nolimit City. The studio is best known for Starburst, Gonzo’s Quest and Mega Fortune, another progressive jackpot game.

Mega Joker review verdict

Mega Joker suits players who like classic fruit machines and want to understand exactly how a game’s return is built. It’s a poor choice if you want a bonus round or a long, gentle session on a small budget.

Similar slots to Mega Joker

Our jackpot slots guide and the slot reviews hub have more options.

Where to play Mega Joker with a welcome offer

Our partners don’t publish complete game lists, so search for Mega Joker in each app’s lobby before you sign up. Welcome spins are for selected slots, and a jackpot game may not be one of them, so read the terms. 18+ and terms apply.

• PlayOJO: new UK customers outside Northern Ireland get 80 free spins on Big Bass Bonanza, at 10p each, after a first deposit of £10 or more. No wagering applies, so winnings are paid as cash; available only through the designated offer link.
• Coral: after depositing, bet £10 or more on slots to get 100 free spins on selected games, each worth 10p. You have 48 hours to accept and 7 days to use them, with no wagering on winnings. Some payment types are excluded, including PayPal, Skrill, Neteller and prepaid cards.
• Ladbrokes: deposit and spend £10 or more on slots for 50 free spins a day over 10 days (up to 500 in total), at 10p on selected games. Claim by 23:59 each day; spins expire after 7 days and carry no wagering.

Coral and Ladbrokes are both operated by LC International Limited, so one person may not be able to open new accounts with both. For apps with a strong jackpot range, see our best jackpot slot apps.

18+. Every casino game has a built-in house edge, so over time you should expect to lose what you stake. Set a budget before you play and stop when it’s gone: safer gambling tools and support. Free, confidential help: National Gambling Helpline 0808 8020 133.