About Boulder Bucks Slot

Boulder Bucks online slot machine channels the stone age in an intriguing game that offers a wide variety of bonus rounds. What's more, you can play Boulder Bucks on mobile, tablet, and desktop devices.

How to Play Boulder Bucks Slot

'I' Button

Clicking the 'I' will display the game's paytable.


Shows the current stake on each payline in play. Press '-' to decrease the stake on each payline. Press'+' to increase the stake on each payline.


Shows the current stake that is currently in play.


Displays the current number of active paylines.

Auto Play

Clicking the autoplay button will automatically spin the reels for the selected amount of game rounds.


Clicking the Spin button will spin the reels for one game round.


Wild symbols substitute for all symbols except Free Spin Bonus and Egg Hunt Pick me

Free Spins

Boulder Bucks symbols award Free Spins in the base game. 1,2 or 3 selections will be given to the player, and these selections can be used to pick 1 of 3 Free Spin games. After the Free Spins are completed, the player can either collect or reject. Rejecting the win gives a chance to win a different prize on another Free Spins game.

Mammoth Spins

The Mammoth Spins Round offers 20 Free Spins with Expanding Wilds. These Wilds appear on reels 2,3 and 4, and will turn the whole reel into a Wild. These Wilds will substitute for all symbols.

Pterodactyl Spins

The Pterodactyl Spins Round offers 10 Free spins with Side Expanding Wilds. These Wilds will turn all symbols to the left into additional Wilds, and appear on reels 2,3 and 4. These Wilds substitute for all symbols.

Sabre-Toothed Tiger Spins

The Sabre-Toother Tiger Spins Round offers 6 Free Spins with Persistent Expanding Wilds. These Wild symbols appear on reels 2,3 and 4 and will turn the whole reel into a Wild. These Wilds will then remain for the rest of the free spins and act as a substitute for all symbols.

Egg Pick Me Bonus

The Egg Pick Me scatter symbols can appear anywhere on reels 2,3 and 4. These eggs can then award either a multiplier or an entry into one of the Free Spins round. The multiplier is a multiple of stake in the standard game, and is a multiplier of stake/line in the Big Bet game.

Bet UK Boulder Bucks Slot Review

Barcrest are the original minds behind the Rainbow Riches slot series, but Boulder Bucks offers a different avenue of online casino gameplay, albeit some that is packed with a vast array of bonus features. These bonuses could help you land wins of up to 500x your stake on every spin of the reels.