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Quick verdict: Mega Joker is NetEnt’s classic 3-reel fruit slot, famous for one of the highest RTPs online: up to 99% when you play the Supermeter mode at maximum bet. Wins from the basic game can be moved up to the Supermeter, where bigger bets unlock mystery wins, and a progressive jackpot can drop at random in the basic game. There is also a different, 40-line “Mega Joker” from Novomatic, explained below.
Recommended casino for Mega Joker
For real-stakes play, our pick is 1win: it scores 9.9/10 with us and paid our June 2026 crypto withdrawal within 15 minutes. Confirm Mega Joker is on 1win’s game list for your country before depositing.
Play at 1win18+. T&Cs apply. Not available in every country. Game libraries vary, so search the lobby for Mega Joker.
Mega Joker at a glance
| Provider | NetEnt |
|---|---|
| Released | 2008 (per NetEnt; some sites list later dates) |
| Layout | 3 reels, 5 fixed paylines |
| RTP | Up to 99% (Supermeter mode at max bet); lower in the basic game |
| Volatility | High |
| Bet range | About 1 to 10 per spin (varies by casino) |
| Max win | 2,000 coins, plus the progressive jackpot |
| Special features | Supermeter mode, mystery wins, progressive jackpot |
18+. T&Cs apply. Check that online gambling is legal where you live.
How does Mega Joker work?
The basic game is played on the lower set of reels with 1 to 10 coins, and classic fruit-machine symbols and the Joker pay on 5 fixed lines. When you win, you can collect it or move it up to the Supermeter.
The Supermeter mode
On the top reels you play using your Supermeter balance, with bigger bets of 20, 40, 100 or 200 coins. Wins stay on the Supermeter until you collect them back to the basic game. Jokers in Supermeter mode can award mystery wins of 100 to 2,000 coins. The 99% RTP applies here when you bet the maximum, which is why Mega Joker appears in so many “highest RTP” lists.
The progressive jackpot
A share of stakes feeds a progressive jackpot, which can be won at random while you play the basic game. It grows until someone wins it.
RTP and volatility: what they mean for you
The headline 99% is a best case: it needs the Supermeter at maximum bet. At the lowest bet the return drops to about 76.9%, so don’t assume every spin returns 99%. Volatility is high: long dry spells are normal and the big wins come from the Supermeter and the jackpot. See how it compares in our highest RTP slots.
What the gap means in money, over 1,000 spins:
| Bet per spin | Total staked | RTP | Average loss |
|---|---|---|---|
| €10 (maximum) | €10,000 | 99% | About €100 (1% of stakes) |
| €1 (minimum) | €1,000 | About 76.9% | About €231 (23.1% of stakes) |
So the cheap way to play Mega Joker is also the most expensive per euro staked. If €10 spins are beyond your budget, a modern slot with a fixed RTP of around 96% will usually cost you less on average. These are long-run averages; with high volatility, any single session can land far above or below them.
Mega Joker (Novomatic, 40 lines): a different game
Novomatic also has a slot called Mega Joker. It is a completely different game: 5 reels and 40 paylines with a stacked Joker, a 95.05% RTP and a 2,000x max win. If a casino lists “Mega Joker” with 40 lines, this is the one you are getting, not the NetEnt classic.
| Mega Joker (NetEnt) | Mega Joker (Novomatic) | |
|---|---|---|
| Provider | NetEnt | Novomatic |
| Layout | 3 reels, 5 lines | 5 reels, 40 lines |
| RTP | Up to 99% | 95.05% |
| Key feature | Supermeter + progressive jackpot | Stacked Jokers |
| Max win | 2,000 coins + jackpot | 2,000x |
Tips for playing Mega Joker
- Learn the Supermeter in the demo before playing for real money.
- Remember that the 99% RTP needs Supermeter play at max bet; set your stake to a level your budget can handle.
- Collect Supermeter wins regularly so you don’t give them all back.
- Check which “Mega Joker” your casino offers: NetEnt (3 reels) or Novomatic (40 lines).
- Read our slot myths guide.
Slots like Mega Joker
- Fire Joker: Play’n GO’s 3-reel joker slot.
- Classic slots: more retro fruit machines.
- Big Win 777: classic 7s and bars with a Chance Wheel.
- NetEnt slots: the studio’s other hits.
- Joker’s Jewels: Pragmatic Play’s 5-line joker slot with no bonus round and a 1,040x max win.
Where to play Mega Joker
Our top-rated casino, 1win (9.9/10), carries thousands of slots and paid our crypto withdrawal in 15 minutes. Search its lobby for “Mega Joker” and check whether it is the NetEnt or Novomatic version. New players can use promo code Ultragambler; see our 1win promo code page.
How we checked this
- NetEnt Mega Joker, up to 99% at the maximum bet and about 76.9% at the minimum bet, high volatility, 3 reels and 5 lines: SlotCatalog and RotoWire. The two give different release years (2013 and 2008).
- Supermeter mystery wins of 100 to 2,000 coins: SlotCatalog and Gambling.com.
- Novomatic Mega Joker, 95.05% RTP, 40 lines and a 2,000x max win: SlotCatalog and Stakers.
- The average-loss table is our own maths: total staked times (100% minus RTP).
Last checked: 12 October 2026, when we worked out the average-loss table ourselves and checked each figure on this page against at least two independent sources.
Mega Joker FAQs
What is the RTP of Mega Joker?
Up to 99% in Supermeter mode at maximum bet. The basic game returns less.
How does the Supermeter work?
Wins from the basic game can be moved to the Supermeter, where you play bigger bets on the top reels and can trigger mystery wins of 100 to 2,000 coins.
Does Mega Joker have a jackpot?
Yes, a progressive jackpot that can be won at random in the basic game.
Who makes Mega Joker?
The classic 3-reel Mega Joker is by NetEnt. Novomatic has a separate 40-line slot with the same name.
Is Mega Joker high volatility?
Yes, most sources rate it high volatility.
Important: check your local laws before you play
Online gambling laws differ from country to country, and in some places it is restricted or not permitted at all. Check that online gambling is legal where you live and that the casino accepts players from your country. You must be 18 or older (or the legal gambling age in your country, if higher). Only gamble with money you can afford to lose.
