Theoretical RTP
99.00%
Volatility
LowMax Win
2,000x
Release Date
2013
NetEnt offers 6 RTP configurations for this slot. Most UK casinos in 2026 deploy at 94.05%. Check the in-game info screen at your casino to confirm which tier you are playing.
Verified deployment data coming soon. Check available titles:
Live RTP by Casino
See how this slot's RTP varies across different casinos
| Casino | RTP Setting | Difference | Status |
|---|---|---|---|
| Zizobet | 99.00% | 0.00% | Standard |
| Cosmobet | 99.00% | 0.00% | Standard |
| Velobet | 99.00% | 0.00% | Standard |
| Rolletto | 99.00% | 0.00% | Standard |
| Aphrodite Casino | 99.00% | 0.00% | Standard |
| Mad Casino | 99.00% | 0.00% | Standard |
| Dracula Casino | 99.00% | 0.00% | Standard |
| Gambiva | 99.00% | 0.00% | Standard |
| Kingdom Casino | 99.00% | 0.00% | Standard |
| Lizaro | 99.00% | 0.00% | Standard |
| Sankra | 99.00% | 0.00% | Standard |
RTP Tracking Coming Soon
RTP Tracking Coming Soon
Live deployed RTP tracking launches in Q2 2026. Subscribe to alerts to be notified when tracking goes live for this slot.
About Mega Joker
Mega Joker from NetEnt launched in 2013 and has become legendary within the RTP-conscious slot community for its 99% theoretical RTP in Supermeter mode. The joker-themed classic slot represents one of the highest RTP configurations available at mainstream UKGC-licensed casinos, but the headline 99% figure requires specific play patterns to access.
The mechanical design uses a classic 3-reel structure with 5 paylines. The base game produces small wins through traditional payline matching. The base game RTP is approximately 76% — one of the lowest figures in mainstream slot design, which creates the RTP gap that Supermeter mode must close.
The Supermeter mode is where the slot becomes mathematically compelling. Winning combinations during base game transfer winnings to the Supermeter display. Players can then choose to collect or push Supermeter — entering a bonus state with higher-value symbols and more frequent wins. Supermeter mode RTP is approximately 99%.
The optimal play pattern requires taking Supermeter wins back into Supermeter mode rather than collecting. Each Supermeter win taken back produces another round at 99% RTP. Players who collect wins revert to base game's 76% RTP. For perfect Supermeter play, effective RTP approaches 99%. For intuitive 'collect wins' play, effective RTP drops to 85-90%.
RTP is 99% theoretical in Supermeter mode / ~76% in base game, running at fixed single configuration. NetEnt does not offer reduced tier variants — the 99% Supermeter figure is the only certified configuration.
Bonus wagering exclusion is essentially universal at UK casinos. Mega Joker is excluded from bonus wagering at virtually every UKGC-licensed operator because the 99% RTP would produce unfavourable operator economics.
For normal (non-bonus) play, Mega Joker offers exceptional RTP for players willing to commit to Supermeter optimal play. The mathematical advantage over standard 96% alternatives is substantial over extended sessions. For players unwilling to consistently pursue Supermeter mode, the effective experienced RTP falls below standard slot averages.
Key Features
99% RTP (Supermeter Mode)
One of the highest RTPs available — requires Supermeter optimal play.
Supermeter Mode
Enhanced play state with higher-value symbols and more frequent wins.
Classic 3-Reel Format
Traditional 3-reel, 5-payline layout.
Fixed Single Configuration
No reduced RTP versions exist — 99% at every casino.
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RTP does not guarantee wins. Return to Player percentages reflect long-term mathematical averages across millions of spins. Individual sessions can and will produce results that differ significantly from theoretical RTP. Slot outcomes are determined by certified random number generators. Play responsibly.