Dr. Clanker cover art: a grinning robot skeleton with a glass-domed brain, a red cyborg eye and a blood-spattered lab coat, flexing clawed metal hands in a green-lit laboratory.
Out now Rated three stars, the top grade, by Stake

Dr. Clanker

A robot doctor with a glass-domed brain runs experiments in a secret lab. Wins tumble, his battery charges with every hit, and when the bonus lands the whole lab takes the lift down to the basement.

Grid
5×4
Pays
1,024 ways
Max win
40,000x
RTP
96.10%
Play on StakeAdd it to your lobby

18+. Opens Stake.com in a new tab.

Features

The Battery
Every winning tumble pays at the multiplier showing, then charges the battery and doubles it: x2, x4, x8 and up. Five charges and it overloads.
Procedures
An overloading battery, or a tumble that dies, can bring the doctor to the board. He carves a reel into wilds, injects wilds, shocks the middle of the board clear or transplants a block into one premium symbol, and the board is read again.
Tumbles
Every symbol in a win shatters, the rest drop, and new ones fall in until a read pays nothing.

Free spins

Land 3, 4 or 5 specimen jar scatters.

  1. 3

    Free Spins

    Down to the basement, with the battery at x1.

  2. 4

    Super Free Spins

    10 spins, with the battery starting at x4.

  3. 5

    The Pit

    5 spins, with the battery starting at x32.

Below ground the battery never drains, and the doctor operates more often.

Modes

Prices are multiples of the bet. Which modes you see depends on the casino and where you play.

Power Surge2x
Specimen jars land more often, and the doctor operates more often.
Live Wire25x
One spin where the doctor answers every dead tumble until his calls run out.
Free Spins100x
Go straight to Free Spins.
Super Free Spins300x
Go straight to Super Free Spins.
Mystery Bonus500x
Super Free Spins 88%, The Pit 12%. Every Mystery Bonus opens a run, and The Pit never pays under 500x.