King Casino Background

The Big One Slot

The Big One Slot Logo King Casino

The Big One by Bally Wulff is a 6 reel, 4 row, and up to 4,096 ways to win slot.

*Any values mentioned are subject to change.


The Big One Slot Game Overview

You can play The Big One online for stakes ranging from 10p up to £3 per spin on every mobile device.

The money-themed slot game is set in a world where animals fend like humans. So, symbols on the reels include a fox with a parted hairdo, a hedgehog, a credit card, and an old phone.

The main bonus feature on offer in The Big One is the Free Games round.

You can play the game on all desktop and mobile devices, including smartphones. Simply join or log in to your King Casino account to play online casino games like The Big One today.

How to Play The Big One

Click the + icon in the top right to access the paytable and game info.

Use the + and – Total Bet keys to set your desired bet amount per spin. Alternatively, you can click Max Bet to set the highest possible bet.

The Spin arrow is towards the far right. The Big One reels spin once you click it.

Winning combinations can occur if 3 to 6 matching low paying symbols, or 2 to 6 matching higher paying symbols land on adjacent reels from left to right.

Wilds can replace regular symbols and complete potentially winning combinations.

Free Games Feature

You can land The Big One free games feature if 2 or more scatters land in the same spin. For example, 2, 3, 4, or 5 scatters can trigger 8, 15, 20, or up to 50 free games. In addition, scatters can also award possible payouts. 

Suitcases full of cash can randomly appear during the spins. They can award a random win multiplier of 2x or 3x, but winning up to 81x multipliers is possible.

Return To Player

Return to Player (RTP): 96.1%.

RTP is used to explain the potential money that an online slot or casino game can pay back to players. It appears as a percentage and is generally calculated from gameplay over a long duration of time.

For example, if a slot has a RTP of 97% this means that it could pay back £97 for every £100 wagered.

However, there is no guarantee that players will receive this amount, as slot payouts are entirely random.


*All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time. Game features mentioned may not be available in some jurisdictions.