Top 10 online slot games with bonus rounds – When bonuses matter!

Experienced gamers earnestly look forward to bonus games while playing online video slots. These games create an opportunity for the player to increase his winnings through free spins, free coins and multipliers contained in the bonus games.

Free online slot games with bonus rounds and without download or registration offer players the opportunity to get a feel of the game and decide if it’s worth playing.

Most online games give the players an opportunity to win the jackpot in its bonus rounds. Players nowadays crave interactive bonus games that reveal hidden features and follow the game’s theme. Some bonus games offer low pay-out and advantages which discourage players from the whole game. Bonus games with high pay-out tend to attract more players ready to grab a chance to increase their winnings. Here are a few online slots with bonus games for free;

Tiki Island Slot by Gamesys

Tiki Island slot Puffer Fish BonusPowered by Gameseys, this 20 pay-line and 5 reels game offer exciting bonus rounds. The Puffer Fish Bonus Feature is triggered by 3 puffer fish symbols appearing on any of the reels between one to three.

It's a Pick-'til-Pop bonus game where you have 33.33% chance of getting it right and move to the next  round. I'm not quite sure what's the maximum number of winning rounds  but you can walk away with some hefty winnings.

There's a second bonus game called The Tikis Nuts Bonus Game which is triggered by a minimum of 3 coconut symbols on the third, fourth and fifth reels. In this bonus game there's a coconut shop with 10 coconuts for you to Pop. Each of them hides a coin prize, some small, others are huge. All you have to do is hit as many coin-filled coconuts before hitting the one that ends the game.

Sounds like fun? It is! This is one of Gamesys top creations. You can learn all about it in this Tiki Island mobile slot game here. There you can find the exclusive list of online casinos that offer this game and get an extra bonus to play.

Rainbow Riches Pot of Gold by Barcrest

Rainbow Riches slot Pots of Gold Bonus GameThis popular game by Barcrests is famous for its Pots of Gold bonus round which gives the player an opportunity to increase his winnings massively. It appears the least in the game and is activated by pots of Gold Symbols between the second and fourth reels.

The Wishing Well Bonus is activated by 3 or more wish-well symbols while the Road to Riches bonus is activated by the Lucky Leprechaun scatter symbol on the third, fourth or fifth reel.

It's one of the most popular video slot machines in the UK and thanks to this, there are ongoing free bonus offers like free spins, no deposit and promo code bonuses. You can read all about it in our Rainbow Riches slots review.

Zuma Slot by PopCap

The Zuma slot game belongs to the PopCap family of games which are most commonly found on Gamesys gaming sites. It's a hidden treasure for those players that don't know the game and a precious jewel for those that do.

The bonus round in Zuma slots here is triggered by spinning three frogs anywhere unto the screen at any time. Players will have to choose between five masks with their choices determining the number of free spins to be received. This bonus game is very interactive, increasing the player’s winning chances.

As you know, free spins bonus games offer the potential for some of the biggest wins in online slots. No matter at what stake level (coin size) your playing, 30 free spins with five times multiplier on those free winning spins is definitely worth the while.  Did you know that Wilds can payout up to 10x multiplier? You can read more about it in our Zuma slots game review.

Hulk Slot

Screenshot image of the Hulk bonus gameDeveloped by Playtech, this video slot game is based on the the popular Hulk movie character from Marvel. Among all online slots from Playtech, this is one of the most popular and the bonus feature is partly guilty of that.

The Bonus rounds in Hulk slot machine are activated by three Hulk logos on reel which gives a player the chance to get free spins and multipliers either in the Hulk Smash where a player gets to smash police equipment to gain points or a shot at the Mega jackpot in the Jackpot round.

We're not really fond of Playtech slots to be honest but this game rightfully worked its way into our list of top slots with bonus games, so if you want to take it for a spin check out our list of top Playtech online casinos.

Sex and the City Slot

Sex and the City slot machine bonus gameThis 4 in 1 slot has boasted an increasing number of male players’with its variety of bonus games available to the player. Based on the TV show, players can engage characters, with different characters having their own interactive bonus games.

Possibly the biggest hit in Vegas right now and certainly just about the biggest hit for IGT in 2010, Sex and The City slots is sure to be one of the most popular games all the way through 2011 and into 2012.

Being a 4 in 1 slots, to get a really good playing session many players are finding they need a couple of hundred bucks to ensure they get a good long game and a chance to win something. Seems that has not put players off, because even now the game has been out a while it is very difficult to get a seat at the slot.

Houdini Slot by Gamesys

Based on the exploits of the famous magician Houdini, its Houdini Escape Bonus feature triggered by the appearance of the Houdini Escape Bonus Symbol on the second to fourth reel gives players the opportunity to win big cash prizes.

During the bonus game, you'll see our friend Tiki nailed to a turning table with balloons attached all around it (as seen in the image). You'll need to skilfully Pop the Balloons to win coins but pop the wrong balloon and the game is done.

This is also one of Gamesys top video slots. If you want to know more about it visit this Houdini Slot review here. You can see the full list of casino that offer the game plus get an exclusive deal to play online.

Winstones Slot by Gamesys

Based on the Flintstones characters, a 1960 cartoon, its bonus round offers players free spins and multipliers which increases the players’ chances of cashing in.

Another sound hit from Gamesys software, the Winstones slot game is more of High Variance slot game with good payouts that features a Wheel of Fortune game for players to earn up to 20 free spins that payout up to five times the total bonus earned.

If you'd like to know more about this fun game from Gamesys, visit this Winstones slot review here.

Double Bubble Slots by Gamesys

Screenshot image of the Pop Bonus game in Double Bubble slotCreated by Gameseys, this 20 line slot with a 25 times multiplier on the pay-out is famous for its Bubble Pop Bonus. The bonus is activated by spinning a bonus icon in on the first, third and fifth reels. A player is presented with 3 question mark bubbles to pop to claim a bonus prize.

If you're thinking this is a Pick-'til-Pop kind of bonus, think again. Here you need to get it right the first time and collect as much as possible. Winnings from this bonus can be quite generous nevertheless.

There's another bonus game in the Double Bubble slot game, the In-Line Bonus. And while it's not a free spins bonus game nor a Pic

Fortune Temple slot by Gamesys

This 25 line, 5 reel slot machine has two exciting bonus games for players. The Fortune or Misfortune bonus game is activated by the Green eye Mystery scatter symbol on the first, second and third reel.

In the Fortune or Misfortune bonus feature players have access to the temple's doors. Each of those doors holds a different faith for the player; may that be a HUGE cash bonus, finishing the game or even unlocking the door that opens all doors.

The Gift of God bonus game is activated by the Red eye of Premonition scatter symbol on the third, fourth and fifth reel. Rather than the typical choice of bonus games, this awards an instant cash win, and that could be a multiplier of up to x100 your original stake. To know more about this game please visit this Fortune Temple mobile slot review here.

Avalon II slot by Microgaming

avalon-2-bonus-gameThis medieval-themed game is littered with symbols from the medieval era such as King Arthur, Merlin and the Black Knight alongside other characters in their search for the long lost grail.

A minimum of three Grail symbols will make a player eligible to activate the Grail bonus where they can win up to 120,000 coins.

The Lake of Legend bonus offer players a chance to roll the dice in order to try and reforge the sword of Arthur, the Excalibur. The Misty Vale bonus feature allows players to claim 15 free spins.

 

Whether you are checking online for the latest slots with bonus rounds or trying to rack up free slots without download or registration. You can get a complete gaming experience with free online video slot games with your knowledge of slots with bonus rounds.

Now, you know what to look for, where to place your bet and which free online video slot games with bonus rounds that can increase your earnings.

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