Quick Facts



  • Reels5
  • Pay-lines10
  • Max. Payout1000x
  • Free SpinsYes

Boulder Bucks

boulder-bucks-slot-logoBoulder Bucks is a Caveman themed slots game developed by Barcrest that has many things in common with the popular Hanna-Barbera series, The Flintstones.

It takes place in the stone age, with a background of colorful palm trees and plenty of boulders, we get reels filled with caveman, cavewoman, dinosaur eggs and even a dino pet.

The animations often include appearances of the caveman, modifying the behavior of some symbols. The graphic environment and 3D cartoon models merge well with the colourful environment created by the soundtrack.


Barcrest is an UK gaming developer founded in 1968, where it started with analogous machines for casinos and companies in the betting sector.

It became a renowned developer in its field and the last decade it expanded its market into digital games. After it was acquired by Scientific Games, it became the leading provider of games and content for the licensed betting in the UK and a competing force in the developing  of online and mobile games.

It is known because of two distinct features in its games, the use of Big Bet button for chain spins with increased rewards, and the use of different pay tables depending on the betted amount.

How to play it

Boulder Bucks is a slots game played with 5 reels, 3 rows and 10 paylines. It has 4 low paying slots symbols represented by cards value (10 to A) built in stone, and 3 high paying slots symbols with the image of characters (Caveman, Cavewoman, Dino Pet).

The game also has a Wild Symbol with the “Wild” letters put in stone and two Scatter Symbols, a Dinosaur Egg and the Boulder Bucks Logo. The panel has the Spin button, the Big Bet button and an Autoplay button on the right side and some arrows in the left side to adjust the betting stakes per line.

Special Features

This game has several special features to be checked:

The Egg Pick Me bonus feature is triggered when you get three Dinosaur Egg Symbols. It allows you to pick one of the eggs and get either a bonus multiplier or a entry into the Free Spins bonus.

The Free Spin Bonus is triggered when you get three Boulder Bucks Logo in reels 1, 3 and 5, and the Boulder Bucks Logo on the reel 5 will have a number which indicates the number of selections you have in this Bonus. The Free Spin Bonus starts by selecting between 3 different modes: Mammoth, Pterodactyl and Saber-Tooth Tiger.

– The Mammoth will deliver 20 Free Spins and also you will get Expanding Wilds in all the full reel where they appear.

– The Pterodactyl will deliver 10 Free Spins and also you will get Expanding Wilds that will cover all positions to the left of where they appear.

– The Saber-Tooth Tiger will deliver 6 Free Spins and also you will get  Expanding Wilds in all the full reel where they appear. Besides, they become Sticky Wilds for the remaining Free Spins.

After the Free Spin is concluded, you will be asked if you want to collect all wins or if you prefer to forfeit them and select a different mode, in the case you have some selections remaining.

The Big Bet feature that comes with all Barcrest games is included, where you can bet €20 or €30 for 5 chained spins with a €2 bet and increased rewards. The increased rewards come on the form of increased help to get the Free Spins through a Pick Me bonus.

The €20 bet will activate a Pick Me bonus on the reel 5, if you get two Boulder Bucks Logo in reels 1 and 3, where you could trigger the Free Spins bonus if you guess correctly the third Boulder Bucks Logo. In the €30 bet, the Pick Me bonus will activate if you get two Boulder Bucks Logo in any of the reels 1, 3 or 5.

Maximum Payout

The maximum payout is 500x by matching 5 Caveman Symbols in the bets under €2. When the Bonus Features are taking into consideration, there is not a Maximum Payout reported. Like all Barcrest games, the RTP depends on the size of the bet and if you choose your optimum strategy in the Free Spin mode selections. It can go from 77% up to 98%.


The colorful caveman theme, the amusing animations and matching soundtrack, coupled with the bonus features and plenty of betting range selections, all these aspects certainly make this game an interesting and fun experience.

Boulder Bucks will let you choose your fate on the Free Spin Selection, that depending on your gameplay style, can get to better payouts. I really like it a lot.

Articles You Might Find Useful

pirate-gold-slot-screenshot 313

Play Pirate Gold Slot For Free

Play Pirate Gold Slot For Free Pirate Gold features a very popular type of theme,

Read More

Play Shogun of Time Slot For Free

Play Shogun of Time Slot For Free Theme wise, the story in Shogun of Time

Read More

Novomatic’s latest title falls like an Autumn leaf

Given that the leading lady in Novomatic’s latest video slot is themed after the season

Read More