The Best Slots with Bonus Games

This guide to bonus games covers everything you need to know about slot machine bonuses, the best slots with bonus games to play online, and where to play for free and real money!

Top-Rated Casinos Offering Bonus Game Slots

1
Top Casino!
Rating:
4.4
$1600
633+
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2
Rating:
4.2
$1000
620+
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3
Rating:
4.3
$750
610+
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4
$350
415+
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5
Rating:
4.5
$1200
410+
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Best Online Slots with Bonus Games

Online slots with bonus games add fun features and mini-games to keep the gameplay exciting, and also provide you with plenty of chances of winning big.

If you’re looking for online slots with the best bonus games, you can’t go wrong with these top titles:

  1. Pink Panther | Playtech | Pink Panther TV series theme | Progressive jackpot
  2. The Dark Knight Rises | Microgaming | Dark Knight theme | Progressive jackpot
  3. Ghostbusters | IGT | Nostalgic Ghostbusters theme | $250,000 maximum win
  4. Family Guy | IGT | Family Guy cartoon theme | 500x bet maximum win
  5. Gonzo's Quest | NetEnt | Aztec, 3D theme | $62,500 maximum win


Play Free Online Slots with Bonus Games

You’re probably itching to try out some of the best free slots with bonus games now, so we’re pleased to present you with thousands of free online slots with bonuses to play in our free games arcade.

The arcade has a search and filter tool to make finding the most popular free slots with bonus games easier, with no download and no registration required to play – the games will load directly in your web browser.

Play free slots here.

What are Bonus Games?

Bonus rounds or features are mini-games within online slots, commonly triggered by hitting a selection of symbols (typically three scatter symbols, or a pair or more of other symbols), and bonuses can also be triggered at random.

The different types of bonus games and features in slot machines are:

  • Free spins - you'll receive a number of free spins at your current stake where you keep any winnings and can’t lose any money during the bonus.
  • Re-spins - you'll be rewarded an extra spin at your current stake for free, often with symbols held in place.
  • Pick-me – also, called a picking bonus, this enables you to play an interactive mini-game and win instant prizes by picking from random themed selections.
  • Instant win - receive an instant cash prize.
  • Added/extra wilds - new or extra wild symbols may be added to the reels to help you form more winning combinations.
  • Pathway game - progress through a series of mini-games and win bigger prizes as you go along. It can often be part of a progressive jackpot game.

What makes a good bonus game?

Because bonus game slots are some of the most popular in the gaming world, the best online casinos will offer a diverse selection of slot machines with bonus games – often hundreds!

So, how do you sort the good from the bad? The three most important factors to look out for are:

  • Hit frequency - an online slot game could have the best bonus game in the world, but if you can only play it once every 50,000 spins it isn't very accessible! The best online slots have bonus games that are triggered frequently.
  • Payout potential - a bonus slot game may come up often, but it might only double your prize. The best online slot bonus games and features will multiply your bet by a considerable amount.
  • Fun factor - besides the money, one big reason that online slot machines have bonus games is to make the game more fun. If a bonus game or feature isn’t exciting or fun to play, it might as well not have one. A boring game is a bad game, after all!

Are Bonus Game Slots Better than Regular Slots?

Some online slots don't have any bonus games at all. This is often the case for classic slots, which emulate one-armed bandits and keep things simple and stripped-down. For other slot games that don’t have bonus games and features, it can be because they offer a high chance of winning without a bonus.

At OnlineSlots.com, we think bonus games add to the excitement of playing slots, and often bonus rounds offer the chance of hitting the jackpot. With all that considered, it’s no surprise that many of the world's most popular online slots feature one or more bonus games or bonus features.

How do you pick the Best Slots with Bonus Games?

The simple answer is to read our online slot reviews compiled by our team of slots pros! It can be tough to choose the best game for you, partly due to the abundance, and partly due to personal preference. Our reviews will give you the honest and critical information you need to choose the game that’s suits your requirements.

Our slot review process includes analyzing the features, symbols, paylines, jackpot, mobile compatibility, software, and bonus rounds. We also hunt down the best bonuses in downloadable and no download games.

You can even try out free slots with bonus games to get a feel for the game before playing with real money. We have a huge collection of free slots and free casino games with bonuses for you to try with no registration and no deposits necessary.

Don't waste time searching through hundreds of slots to find the best ones – just use our list of the best online casinos, and our expert casino and slot reviews, to get right into the action and spin your way to an instant win. And don’t worry, new games come out constantly, but we always keep our recommendations up to date.

How we Rate and Review Casinos

Our casino reviews team only recommend casinos after vetting them in the following areas and ensuring they meet our strict criteria:

  • Security and licensing - We check that the casinos are properly licensed and regulated, have the eCogra stamp of approval, and use SSL encryption.
  • Games - We play the games ourselves to check their quality, speed, and features. We also like to see a wide range of slots, and plenty of other casino games on offer in case players would like a break from the reels.
  • Payment methods - We ensure that the casino accepts a variety of payment methods and that the deposit and withdrawal process is quick and easy.
  • Customer support - We get in touch with customer support to assess the speed and efficiency of the response.
  • Bonuses - We look for sizeable welcome bonuses without huge wagering requirements and scout out worthwhile VIP and loyalty schemes.

Bonus Games FAQ