Monster Lab slots from Evoplay

RTP: 94%

Enter the Monster Lab and concoct your formula for big wins!

Enter a quirky laboratory and cook up some crazy creations in Monster Lab by Evoplay. This fun and charming casino game introduces you to a mad scientist and his adorable monster experiments. The main attraction is the interactive Bonus Game where you mix potions to create new monsters for instant prizes, complemented by a classic Free Spins round. It’s a lighthearted classic slot adventure for every aspiring scientist.

Provider: Evoplay
Release Date: 2017
RTP: 94.00%
Volatility: Medium
Max Win: 100x
Theme: Monsters, Science, Humour
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Feature Value
Reels 5
Rows 3
Paylines 20
Min Bet €0.20
Max Bet €200
Max Win 100x
Jackpot No
RTP 94.00%
Volatility Medium
Hit Frequency N/A

Monster Lab is set inside a bustling, colorful laboratory filled with bubbling beakers and strange contraptions. The theme is a fun, cartoonish take on the classic mad scientist story. The graphics are bright and playful, with excellent 3D animations for the cute and quirky monster characters. An upbeat, zany soundtrack and fun sound effects from the lab equipment create a lively and entertaining atmosphere.

  • Regular Symbols: The symbols are the scientist’s adorable monster creations. There are single-eyed, double-eyed, and triple-eyed monsters in various colors. The two-headed monster is the most valuable regular symbol.
  • Special Symbols:
    • Wild Symbol: A DNA molecule is the Wild, substituting for all regular symbols.
    • Scatter Symbol: A magical sphere is the Scatter, which is the key to triggering the Free Spins.
    • Bonus Symbol: A card with the scientist’s formula is the Bonus symbol that activates the bonus game.

Starting your experiment is easy. First, set your bet and the number of active paylines. Then, hit the ‘Spin’ button to see what monsters you create. To learn the formula for success without any risk, you can try the free slot machine demo on our site. This mobile slot is fully optimized for a monstrously fun time on any iOS or Android device.

Free Spins

The Free Spins feature is activated by landing 3 or more Scatter symbols anywhere on the reels. This awards an impressive 15 free spins, giving you plenty of chances to land the lab’s biggest creations.

Bonus Game

Land 3 or more Bonus symbols on an active payline to trigger the interactive Bonus Game. You are presented with a series of 12 chemical flasks. You must choose flasks to mix a potion. Each flask adds a different monster body part to your creation. After you have picked all your parts, your new monster is revealed along with a bonus prize based on the combination you created.

Gamble Feature

After any win, you can choose to enter the Gamble feature. You must guess which of the two monsters is hiding the prize to double your winnings. You can do this up to 5 times.


RTP: The game has a low RTP of 94.00%. This is significantly below the industry average and represents a high house edge. Players should be very cautious when playing this game with real money.

Volatility: With medium volatility, Monster Lab offers a balanced experience. The features trigger with reasonable frequency, providing a good mix of smaller wins and the potential for larger payouts in the bonus rounds.


Monster Lab is a charming and fun slot with a great theme and an enjoyable interactive bonus game. The cute monster designs and lively atmosphere are a definite highlight. However, the very low RTP and low max win make it a tough sell for real-money play. It’s a perfect game to enjoy in demo mode for its entertaining features, but players should be wary of the poor payout statistics.

Pros Cons
Fun and charming theme with great 3D graphics. Very low RTP of 94.00%.
Engaging and interactive bonus game. Very low max win of 100x.
Generous 15 free spins. Gameplay and features feel a bit dated.

Suitable for: Fans of the fun monster theme (best played in demo mode).


What is the RTP of Monster Lab?

The RTP of Monster Lab is very low, at 94.00%.

Can I play Monster Lab for free?

Yes, a free demo is available on our site, which we highly recommend due to the game’s low RTP.

Does Monster Lab have a free spins feature?

Yes, it has a Free Spins feature that awards 15 free spins, as well as a separate interactive Bonus Game.

What is the maximum win in Monster Lab?

The maximum potential win is 100 times your stake.

Is Monster Lab mobile-friendly?

Yes, Monster Lab is fully optimized for a fun and quirky experience on all mobile devices.


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