Pearl Harbor

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  • Chance to win over 41,000x
  • Cascading reels
  • Wide range of bonus features
  • Great-looking free casino slots game
  • Overly complex gameplay for free casino slots
  • Extreme volatility may put players off
  • Variable RTP as low as 92.14 per cent

Pearl Harbor is an online slot developed by Nolimit City. Based on the Pearl Harbor attack, it is a cluster game with a 7x7 grid, an RTP of up to 96.21 per cent, and very high volatility. Features include cascading reels, scatters, and multiple bonus games.


The Pearl Harbor online slot is a World War II-themed cluster pays game with cascading reels and a maximum win of more than 41,100x. It is bursting with bonuses and offers extreme variance action for when you are feeling the need for an adrenalin rush. Read this Pearl Harbor slot review to find out more.

Pearl Harbor theme and graphics

This Nolimit City free slot is based on the surprise attack on Pearl Harbor in Honolulu by the Japanese in 1941. 

The main game screen invites you to set your sights - quite literally - on a game grid filled with symbols such as American and Japanese troops and the Japanese flag. Japanese aircraft fly above and below, and you see them approaching the harbour.

This game is very different to the likes of the Rich Wilde and the Tome of Madness slot.

Pearl Harbor RTP and variance

This is an extremely volatile slot, with the maker awarding it 10 out of 10 for variance. The RTP is variable and could be as high as 96.21 per cent or as low as 92.14 per cent.

How to play Pearl Harbor

Get started with these handy hints:

  1. The active play zone is the area within the sights on the screen.
  2. The three-dot symbol is the main menu tab. This is where you will find links to the paytable, settings, and game history.
  3. The dollar sign opens the bet settings menu.
  4. Never bet more than you afford to lose, and use the timeout and self-exclusion functions responsibly.

Bet sizes and prizes

You can bet from 0.20 to 100.00 per spin - or 200.00 with the xBet option. The maximum prize in this choice of free casino slots is 41,127x your bet. Top 40+-of-a-kind wins include:

  • Japanese fighter pilot = 62,500
  • Admiral = 37,500
  • Pilot with moustache = 27,500

Pearl Harbor bonus features

This choice of cluster online slots offers a variety of bonuses. These include:


Only one scatter can land per reel and they can split to trigger a bonus mode. They will then offer a multiplier bonus.

xBet Banzai!

You can pay 50 per cent more to triple your chance of triggering the online slots Dog Fight bonus. You could also choose to pay double and boost your chance of unlocking the Tora! Tora! Tora! bonus by more than 10 times.

xBomb wild multiplier

The xBomb wild will blow away up to ten of the surrounding symbols. If an xBomb wild is next to the border of the active area, it will shift this active area by one row or reel; if it is in a corner, it will boost the active area by one row and one reel. The xBomb can also split and offer you a multiplier boost.

Target symbols

These can land anywhere on the grid and will make the active area expand. Once this happens, the symbol transforms to become a wild icon.


The xSplit symbol is a samurai sword and will split icons in the direction in which the handle of the sword points. xSplit symbols can have either one sword or two. If there are two, the swords can point both vertically and horizontally.

xSplit icons can be split by each other. When this happens, you will get an extra sword pointing in a different direction. If the xSplit icon has four swords, the new split will deliver a 2x multiplier. You will also get a 2x multiplier when an xSplit hits xBombs, target symbols, and scatters.

Colossal symbols

These can land and cause the active reel area to grow to accommodate it. These icons can measure 3x3 or 2x2 and be accompanied by a 3x or 2x multiplier.

These symbols can split into single symbols, which can continue until you have 18 icons. After this, the symbols can get multiplier boosts.

Dog Fight bonus

This is triggered by landing three scatters and starts with a trio of spins playing outside a fighter plane cockpit, complete with an 18-dial instrument panel. These dials will all start to spin and can land multipliers or nothing. Multipliers will reset your spin counter to three.

Dog Fight Attack

If you fill a column of the dials, you will start a Dog Fight attack during which you will be rewarded for hitting an enemy plane.

Kamikaze Attack

Fill all 18 instrument dials and launch a Kamikaze Attack when the Dog Fights have finished. You will get a multiplier wheel featuring hits (multipliers) and misses.

Tora! Tora! Tora! bonus

This feature is unlocked by landing four scatters. It is the same as the Dog Fight bonus but with bomb drop and midway pop features. These add yet more multipliers to the game with potentially lucrative effects.

Pearl Harbor review: our verdict

This is one of the most complex slot games we have encountered and, unfortunately, the game rules are not that clear. 

It is a great-looking game, however, and many players will simply enjoy watching the action unfold and - hopefully - seeing the winning clusters drop in. There is no doubt that this is an interesting choice of online slots with the potential for lots of excitement if luck is on your side.

If you like a bonus feature, you won’t find many slots with more than this game; however, you might think there are one (or four!) too many for what should be a fairly easy game of chance.

Disclaimer: Pearl Harbor trademark / license is owned by NoLimit City. This site is not endorsed by NoLimit City.

Slot Data
Slot Name: Pearl Harbor
Software: NoLimit City
RTP: 94.10%
Volatility: High volatility
Paylines: 7
Reels: 7
Min Bet (all lines covered): £0.20 (GBP)
Max Bet: £100 (GBP)
Top Win: 41127
Features: Bonus Game, Wild Symbol, Scatter Symbol, Multiplier, Free Spins, Clusters, High volatility, 7 Reels, Cascading, Reel Modifiers, Split Symbols
UK Available in GB? Yes. NoLimit City have a UKGC license and are allowed to offer their games at UK licensed casinos.


What is the RTP of the Pearl Harbor slot?

It has a variable RTP. This ranges from 92.14 to 96.21 per cent.

What is the variance of the Pearl Harbor slot?

This is a high-volatility game. It may feel too risky for some players.

Does Pearl Harbor have bonus features?

Pearl Harbor has multiple bonus features. In fact, it has more bonuses than most games we feature.

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    Overall score: 2.8 out of 5 stars
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