Bonanza Demo Mode

Big Time Gaming (Evolution) brought us a slot with a mine, rail carts and the Megaways mechanic. Bonanza was released in 2016 and still holds its status thanks to reactions and a bonus with a growing multiplier. The demo version is available right on this page, and other slots and games by the provider can be viewed for free in the Legalbet games section.

96%
Return to player
RTP means Return to Player and describes the theoretical payout ratio of casino games. The higher the RTP, the higher percentage of your bets you can expect to get back in the form of winnings. The RTP in real-money casinos can differ.
12000x
Max win
High volatility
Volatility
Volatility, in online gambling, is a term used to assess the risk of losing a bet. In other words, it suggests how rare or often players can expect to win or how big or small they can expect the prizes to be.
Slots
Game type
0,2
Min bet
The lowest amount a player can wager on a specific game. It is also a bonus requirement where you can bet above a certain amount to claim your bonus.
20
Max bet
The rule which indicates the highest amount you can bet on a casino game. It is also a bonus requirement where you can only bet up to a certain amount to claim your bonus.

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Information

Bonus game
Available on mobile
Jackpot
Quickspin
Auotoplay
Demo mode
Game developer Big Time Gaming (BTG)
Release date 07.07.2021
Last page update November 2025

More games by Big Time Gaming (BTG) 18

Bonanza: Design and Theme

🖼️ Graphics

The base scene shows stone walls covered with moss and daisies, rail tracks above with mine carts carrying diamonds, rubies, or dynamite wild itself. The screen feels alive with small details: a cabin by the mine entrance, a waterfall on the right, and the Megaways number changing on the header. In the bonus, the visuals “go underground”: a warm, reddish light, a metallic shine, and gold bars in the carts — it feels like reaching the vein. The pearlescent purple gem remains the star of the screen.

🎶 Sound

The music is upbeat guitar country: energetic, rolling forward, with a touch of old-school charm — exactly what fits the setting. Reaction clicks, rail clanks, and dynamite pops mix into the soundtrack and create that authentic “mining” rhythm. In the bonus, everything sounds denser, as if the room became tighter and the stakes higher.

Bonanza Mechanics

🥁 Grid Size

6x2–7

📊 Ways to win

117,649

➕ Bonus Game

🤑 Jackpot

💸 Extra Bet / Ante Bet

🪂 Fixed Multipliers

♻️ Respins

❎ Gamble

Winning Combinations

Top Symbols:

Symbol
2
3
4
5
6

Purple Diamond

x2

x5

x10

x25

x50

Red Gem

x1

x2

x2.5

x7.5

Blue Gem

x0.25

x1

x1.5

x2

Green Gem

x0.25

x0.5

x0.75

x2

Base Symbols:

Symbol
3
4
5
6

A / K

x0.2

x0.4

x0.6

x1.75

Q

x0.2

x0.25

x0.6

x1

J

x0.15

x0.25

x0.5

x1

10

x0.15

x0.25

x0.5

x0.9

9

x0.1

x0.2

x0.4

x0.8

Special Symbols

  • Wild (dynamite in a cart): substitutes for all symbols except the scatter; appears only in the top cart reel. Does not pay on its own.

  • Scatter (letters G-O-L-D on gold plates): land anywhere in the base game and are used solely to trigger free spins.

  • Free Spins Scatter (gold bars in a cart): appears only during the bonus in the top row and awards extra spins.

Bonus Game

  • Free Spins: 4 “GOLD” scatters trigger 12 free spins; each additional scatter at trigger adds +5 spins. Inside the bonus, an unlimited win multiplier applies: it starts at x1 and increases by +1 after every winning reaction.

  • Retriggers: cart scatters with gold bars during the bonus add extra spins: 3 carts = +5 FS, 4 carts = +10 FS.

  • Stake and calculation: the bonus plays at the same stake that triggered it (or the chosen stake when buying free spins). All wins are calculated using Megaways rules.

RTP, Volatility, Max Win

The RTP of Bonanza is 96%. Volatility is very high: the base game can drag through long pauses, but the bonus with its increasing multiplier can “crack open” the balance. The stated maximum win is up to x26,000 of the stake.

Our Verdict

Bonanza is a rare case where age suits the slot. We like its simple rules and big multipliers. The bonus can build up almost endlessly. The downside is long, quiet stretches and rare triggers, which demand bankroll discipline. If you enjoy “snowballing” multipliers and playing in anticipation of a good reaction chain, this slot is exactly your spot. If you want frequent mini-games, it will feel duller.

A thematic alternative is Gold Diggers: also a mine, more old-school tricks and straightforward bonuses — great for players who prefer a softer pace. Or Wild Lava — a bright arcade-style presentation with “lava” respins for those who want constant action without Megaways. Another solid pick is the Fire in the Hole series from Nolimit City, which keeps the mining theme but adds heavier volatility and more explosive features.

Post by:

Andy H
Andy H
Site Manager
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