Big Bang Bonus: Hold & Win

Big Bang Bonus: Hold & Win drops you deep into a glowing canyon mine, where shimmering gems and wooden carts are overflowing with gold. Developed by Octoplay, the slot’s visuals are bright and playful, with neatly chiselled reel symbols and crisp animations that deliver numerous entertaining moments.

The soundtrack is cheerful and upbeat, pairing perfectly with the game’s colourful tone and animated dynamite sticks piled in crates nearby. This is complemented by a series of perfectly-timed sound effects designed to recreate classic video slot movement and chimes.

You can play Big Bang Bonus: Hold & Win from anywhere using a smartphone or tablet. No app is necessary, since the game is compatible with mainstream web browsers. Moreover, it has a return to player (RTP) rate of 92.70% with low to medium volatility.

Digging Into the Fun

Octoplay’s Big Bang Bonus: Hold & Win slot grid is spread across five reels and four rows. To start playing, launch the game, set your stake, and click the spin button.

When the reels have stopped spinning, winning combinations are automatically identified and paid. The grid contains 20 paylines, which all start from the leftmost reel and pay adjacent.

10 symbols deliver the slot’s standard payouts. Nine of these are standard symbols, of which the gold cart is the most valuable. Winning combinations with this symbol pay between 5x and 50x the base stake.

As with the majority of slots at our online casino, Big Bang Bonus: Hold & Win includes wild symbols that substitute for all standard symbols. Wilds can also form independent winning combinations that pay out 50x. These are formed when five wilds land across the same payline.

Big Bang Bonus: Hold & Win Features

In addition to explosive gameplay, Big Bang Bonus features gem jackpots, re-spins, and plenty of mining action. Paired with eligible casino promotions, it provides an entertaining way to explore what’s hiding in the mine.

Hold & Win Feature

This feature triggers when six or more Gold Pan, Mystery, or Jackpot symbols land at once. Like similar bonuses in other popular online slots, it begins with three respins, but any new symbol that lands resets the spin count to three.

During the Hold & Win Feature, symbols stay locked in place. If no new symbols land for three consecutive respins, the bonus ends, and all values on the screen are collected and awarded.

Gold Pan Cash Symbols

Gold Pan symbols land with values shown as base stake multipliers of between 1x and 5x. These symbols only pay out during the Hold & Win bonus.

Mystery Symbols

Mystery symbols can appear during the Hold & Win feature and reveal hidden multipliers of between 10x and 15x at the end of the bonus. A maximum of three Mystery symbols can appear per spin.

Jackpot Prizes

Big Bang Bonus: Hold & Win is one of our jackpot slots, offering four fixed prizes equivalent to a base stake multiplier. Mini prizes have a value of 20x, whereas Minor and Major pay 50x and 100x, respectively. The Grand Jackpot, meanwhile, is the most valuable, with a prize equivalent to 1,000x the base stake.

Only one symbol per jackpot can appear on a single spin.

Gold Chunk Animations

During the base game, Gold Pan, Mystery, and Jackpot symbols launch gold chunks, with the possibility of triggering the Hold & Win Feature. If the feature is activated, up to eight Gold Pan symbols are added to the grid.

Dynamite Level System

The Big Bang Bonus: Hold & Win slot has five bonus levels represented by dynamite sticks. Through a progressive feature, each time the Hold & Win bonus ends, your level increases.

This level affects all future Hold & Win rounds at your current stake. The higher your level, the bigger the multipliers applied to all symbol values.