Slot Machine Bonus Games Guide

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Slot Machine Bonus Games - Best Slot Games with Bonus Rounds

The most exciting part of any online slot game is the bonus round. Every developer includes bonus features in slots, be it free spins, special symbols, or jackpots that deliver instant wins.

In most popular slot games, the bonus round is triggered randomly with the help of scatter symbols , although some classic slots and modern slot machines offer you the chance to trigger access to bonus rounds if you don't want to wait.

Here, we explain everything you need to know about slots with bonus rounds and introduce you to the best bonus slot machine games to play for free at Stake social casino .

What are Bonus Games & Bonus Rounds in Slot Machines?

Bonus games are special rounds in slot games randomly triggered by special symbols falling on the reels.

Once triggered, the bonus round lasts for a pre-determined amount of time (usually for a specific number of spins). In most games, you can land huge potential wins when the bonus round is active, often over 1,000x the amount you played.

But as we explain below, bonus games are incredibly varied and consist of various symbols, features, and gameplay mechanics.

How do Bonus Games & Bonus Rounds Work in Online Slot Games?

Bonus rounds in slot games can trigger randomly at any stage of the game. They’re sought after because they represent your best opportunity to land the biggest wins in the game, offering the most thrilling gameplay.

Most bonus games offer free spins features , multipliers , jackpots, special symbols , and other elements to crank up the excitement.

While bonus games are randomly triggered in the base game, you can also access to these games for a pre-determined amount in selected slot games.

Types of Bonus Games & Bonus Rounds

Let’s take a closer look at some of the different bonus rounds you can trigger in slot games:

Game Explanation
Free spins Free spins features are the most popular type of bonus game. When a specific number of scatters land, you’re awarded a set number of free spins of the reels to try and land wins.
Jackpot bonus Some slots offer in-game jackpots that provide 3-5 fixed wins. During the bonus feature, you can land these jackpot wins when specific symbols land on the reels.
Progressive jackpots While some jackpots are fixed, others offer progressive wins that can deliver massive wins.
Bonus wheel You can also play slots that offer a bonus wheel. You get the chance to spin the wheel, and each segment can deliver different features, including free spins, instant wins, multipliers, or jackpot bonuses.
Pick a reward Pick-a-reward bonus games invite you to select a card or chest that reveals a specific prize, be it an instant win, free spins, or multipliers.
Wild symbols Wild symbols are a bonus feature themselves, as they can land across the game matrix to form winning combinations.
Scatter symbols Scatter symbols typically trigger access to the game’s bonus round when at least three symbols are in view at any given time.

How to Trigger Bonus Rounds

There are two ways to trigger bonus rounds in slots. The first is via the game’s scatter symbols, which can land randomly on the grid. You usually need at least three scatter symbols in view to trigger the bonus round.

The other way is to access the bonus round for a bigger playing amount. Many slots have feature spin options , giving you instant access to the bonus round for a fixed amount, which is often around 100x the amount played.

Common Features in Bonus Rounds

After triggering a bonus round in a slot game, you may come across the following special features:

  • Expanding symbols: These are special symbols that can land on the grid. When they appear, they expand to cover multiple sections and perhaps even an entire reel to help you form winning combinations.

  • Walking wilds: Walking wilds can move around the grid during the bonus game to help you land wins in multiple locations on the game matrix.

  • Wild reels: This is when an entire reel consists of wild symbols for the duration of the bonus round.

  • Colossal symbols: These symbols tend to be 2x2, 3x3, or even 5x5 in size and may cover the entire game matrix.

  • Multipliers: Some bonus games attach multipliers to specific symbols, which increases all wins by a specific amount (2x, 5x, 10x, etc.).

  • Sticky symbols: In bonus games, sticky symbols remain in their place for the entirety of the bonus round and can contribute to multiple wins.

  • Stacked symbols: This is when identical symbols stack on top of one another to improve your chances of landing winning combinations.

How to Choose the Best Slots with Bonus Games

The easiest way to pick the best slots is to read the game description. You can find all the information you need about the game’s bonus features, including how to trigger them and access them. You can then pay attention to the bonus features as you spin the reels.

Best Slots with Bonus Games at Stake.us

You’re truly spoiled for choice when it comes to slot games and themes at Stake social casino. Our extensive slots library has some brilliant bonus rounds and special features.

Hacksaw Gaming’s horror-themed slot Chaos Crew 2 is a feature-rich slot with epic drops and an in-game bonus round featuring multiplier symbols and wins that can reach up to 20,000x the amount played.

We also love the Stake Exclusive , gem-themed slot game Jewel Bonanza from the award-winning studio Pragmatic Play . The game has an enhanced RTP of 98%, a feature spins option, and a loaded free spins round that cranks up the value of winning combinations.

You can also check out the Stake Original game, Tome of Life, for excellent bonus features. The scatter symbol in the game triggers access to the free spins bonus round, where 180 free spins are up for grabs, and multiplier symbols can land.

Tips for Playing Slots with Bonus Games

Here are some handy tips to help you play slots with bonus games at Stake.us:

Social Casino Promotions & VIP Club at Stake.us

To play the best slots with bonus games, take advantage of our current promotions , available for all new and existing players.

You can also learn more about the exclusive rewards available to members of the Stake VIP Club to further boost your winning chances! Check out our VIP Club FAQs for more information and sign up if you haven't already.