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ZapLab Slot Review and Free Demo

ZapLab
ZapLab
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Updated: 22.07.2025
Reviewed by: Nikita Lukanenoks
This ELK Studios monster-themed slot is all about mind-boggling experiments. Discover an RTP of 94%, a max win of 10,000x bet, and exciting bonuses of the game in this ZapLab slot review. Play a free demo right on this page.
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18+ | New players only | Terms Apply | Please play responsibly | gamblingtherapy.org

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In This Review
  1. General Information about ZapLab
  2. Theme
  3. Slot Features & Bonus Games
  4. RTP, Volatility and Max. Win Potential
  5. How to Play ZapLab
  6. Pros & Cons of ZapLab Slot Machine
  7. Conclusion of our Expert
  8. FAQ
  9. Where to play ZapLab for Real Money
  10. Similar Slots
General information about ZapLab slot

General Information about Slot

Rating by Nikita Lukanenoks:
8.5
ELK Studios
Write a review +25 SJ points
  • Release Date:
    24.04.2025
  • Volatility:
    High
  • RTP:
    94.0%
  • Multiplier:
    Yes
  • Max. win:
    10,000x
  • Bonus game:
    No
  • Free spins:
    No
  • Scatter Symbol:
    No
  • Wild symbol:
    Yes
  • Symbol Stacked:
    No
  • Jackpot Game:
    No
  • Slot lines:
    Cluster Pays
  • Slot reels:
    7
  • Layout:
    7-7
  • Stakes range (€/£/$):
    0.20 to 100
  • Slot Theme:
    Monsters
  • Technology:
    JS, HTML5
More infoLess info

Licensed and tested by

  • Gambling Comission
  • MGA
  • ONJN

Slot Theme and Storyline

Dr. Mayhem carried out many shocking experiments in the early 1900s, trying to capture the spirits of the dead using electricity. That’d be what created Zappy, an unpredictable electric creature that can strike suddenly, bringing rewards. The game is designed in a cartoon-like style, with thematic music and sounds and a detailed background.

ZapLab Slots features & Bonus games

Rich with extra features, the ZapLab slot offers one of the most exhaustive bonus lists among games of a similar genre. The persistent Monster Meter is filled with every symbol combination, bringing you closer to multiplied rewards with every winning spin. We will describe this slot and other special features below.

  1. Monster Meter

    The Monster Meter counts all the symbols collected from the reels and fills out little by little with every winning combo you form. A random feature is awarded with every fill, and on the fifth fill, Shockwaves are activated with all the Monster Features at once.

    ZapLab slot Monster Meter Fill out the Monster Meter to the top for an instant boost in rewards

  2. Monster Features

    Activating the Monster Meter can bring a bunch of extra features, including: 

    • Monster Reload: +1 symbol redrop (respin).
    • Wild Flip: replaces all symbols of a random type with Wilds.
    • Monster Chunks: replaces all symbols of a random type with 2x2 symbols.
    • Monstrous: selects a random payout symbol or a Wild and expands it to 3x3, 4x4, or 5x5.
    • Zapocalypse: a random number of Dr. Mayhem symbols fall on the reels and get zapped by Zappy.

    ZapLab slot Monster Features The Monster Meter can activate up to 5 different Monster features per fill

  3. Extra Features

    Apart from the Monster features, the Meter can trigger such extras as: 

    • Omniblast: explodes and replaces all payout symbols in the shape of an “X” with a random symbol.
    • Electroshift: chooses a random symbol type and upgrades all symbols of this type to more valuable ones.
    • Twilight Twirl: turns itself into a random payout symbol and replaces all its instances on the reels.
    • Wilds: оust like Zappy Wilds, these symbols substitute for all payout symbols on the grid

    ZapLab slot Extra Features Increase the value of random symbols in view thanks to the Monster Meter features

  4. Zappy

    Zappy, the main character of the game, acts as a Wild symbol that substitutes for all regular symbols in view. It can attack Dr. Mayhem's symbol, increase its multiplier, and expand to 2x2, 3x3, or 4x4.

    ZapLab slot Zappy Zappy is a multi-functional Wild that can expand, zap, attack other symbols, and bring multipliers

  5. X-iter

    Hit the X-iter button next to the reels to pick one of the slot's Bonus Buy options:

    • Shockwaves Hunt: guarantees more than an x3 chance to trigger Shockwaves at the cost of 3x the bet.
    • Zappy’s Turf: guarantees a Zappy symbol for 5x the bet.
    • Amplifier: triggers the pending feature from the Monster Meter to get only Monster features from it for 25x the bet.
    • Shockwaves: activates Shockwaves instantly for 100x the bet.
    • Maxed Monster: for 500x the bet, it drops a 5x5 Monstrous symbol, and the Monster Meter only awards Monster Chunks and Monstrous features.

    ZapLab slot X-iter

Key Info about RTP, Volatility and Bet Limits

  • RTP is 94%, lower than other slots from the same provider.
  • The volatility of the slot is high.
  • The betting range in the game is €0.2 to €100, which is suitable for both low-budget players and high-rollers.
All the bonus features accumulate to bring up to 10,000x your stake
Constantly filling up the Monster Meter can lead to landing the highest reward. Consider using instant X-iter bonuses for immediate feature triggers.

How to play ZapLab

Using our experience, we wrote a guide to choosing the best casino, comprehending slot rules, and playing ZapLab by ELK Studios online.
  • 1

    Try the demo version

    Begin by launching a free ZapLab demo on this page.

  • 2

    Read the rules and all the important information, like Symbols and RTP

    Go through the game rules carefully and pay special attention to the symbols and their payouts.
  • 3

    Choose a casino site you want to play at

    Dwell on our casino analysis to choose the best gambling site based on Slotsjudge's rating.
  • 4

    Claim the bonus from the casino to obtain more free spins

    Look for a welcome bonus that gives out free spins for the slot to increase your satisfaction with the gameplay.
  • 5

    Set the bets that are comfortable for you

    Select one of the offered bet values in the slot and ensure it suits your budget.
  • 6

    Start playing

    Now you can hit the “Spin” button and enjoy the ZapLab real money gameplay.

Advantages and Disadvantages

Pros
A significant number of bonuses
Two types of Wild symbols
The Monster Reload feature that resets the reels
Cons
No traditional free spins bonus game

Slotsjudge’s Expert Conclusion

We were entertained by the slot's theme and dynamic bonus rounds, especially the Monster Meter that increased the excitement from every spin. Although the RTP of the game could have been higher, it didn't spoil our overall experience: for the fans of fun slots with an accelerated gameplay, this title is worth a round or two.
Nikita Lukanenoks
Nikita Lukanenoks
Editor in Chief
With over six years in iGaming, I’ve seen this industry from many angles, and I’m now stepping into the role of Editor-in-Chief to bring readers a reliable, data-driven look at online gambling. My journey began with a deep fascination for gaming mechanics, evolving into a career where I could combine my interests in gaming, web design, and sports. I’m committed to building a platform that connects with readers and keeps them engaged with the latest trends and best practices.

162 articles

FAQ

Is there a ZapLab demo game available?

Yes, we have prepared a free demo version of the slot for you in this review.

What is the Return to Player (RTP) in ZapLab?

The RTP of the slot sits at 94%.

Does ZapLab have free spins?

There is no separate free spins round, but the game features a Monster Reload with one extra re-spin you can get upon filling out the Monster Meter.

What is the maximum payout of ZapLab?

The slot features a max multiplier of 10,000x your total stake.

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