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Demo coming soon

Monster Lab

Enter the experiment. Try not to become part of it.

A 5×4, 1,024-ways slot where Mutation Wilds fuse into bigger multipliers and the Lab Assistant bags glowing Specimen Jars for cash.

Demo coming soon
The Monster Lab scientist holding a glowing green flask
Grid
5×4
Ways
1,024
RTP
96%

01 / The experiment

Unstable wilds. Bottled cash. A lab on the edge.

  1. 01

    1,024 ways

    Wins form across five reels and four visible rows, with 1,024 possible ways through the laboratory.

  2. 02

    Mutation Wilds

    Wilds land with a mutation level of ×2, ×3 or ×5. Wilds that touch fuse and level up, and multipliers on the same way multiply together.

  3. 03

    Specimen Collect

    Specimen Jars carry cash values. When the Lab Assistant lands on reel 5 he bags every jar on screen, boosted by the highest Mutation Wild in view.

  4. 04

    Free Spins

    Land Scatters to break into the Free Spins experiment, where the lab really loses containment.

Freddie, a three-eyed black cat from Monster Lab

02 / The specimens

A laboratory with a life of its own.

A rogue scientist, his loyal Lab Assistant, improbable creatures and fluorescent compounds turn the reels into a bright, unruly monster workshop.

03 / Game specification

Monster Lab at a glance.

Provisional specification. Final figures confirmed after certification.

Reel layout
5 reels × 4 visible rows
Pay system
1,024 ways
RTP
96% (provisional)
Maximum win
50,000× (provisional)
Features
Mutation Wilds, Specimen Collect, Free Spins
Volatility
Medium-high
Theme
Mad science and monsters
Platform
HTML5
Technology
Stonecraft by Keystone Studios
Demo
Coming soon

04 / Questions

Inside the lab.

What is Monster Lab?

Monster Lab is a 5×4, 1,024-ways slot from Keystone Studios with fusing Mutation Wilds, Specimen Collect and a Free Spins bonus.

How does Monster Lab play?

Wins pay across 1,024 ways. Mutation Wilds carry multipliers and fuse when they touch. The Lab Assistant collects Specimen Jar cash values, and Scatters trigger Free Spins.

What are the RTP and maximum win?

Monster Lab targets a 96% RTP and a 50,000× maximum win. Final figures will be confirmed once the certified maths is locked.

Can I play the demo now?

The Monster Lab demo is coming soon. This page will link to it as soon as the playable build is ready.

05 / Work with us

Bring Monster Lab to your players.

Speak to Keystone Studios about distribution, integrations and upcoming releases.

Demo coming soonTalk to the studio