Jack Hammer Slot Logo

Jack Hammer Slot — Online Slot Review & Free Demo

Play for real By clicking I confirm that I am 18+

Jack Hammer Slot Review: RTP, Bonuses & Features

Comic book fans, assemble. Jack Hammer is a thrilling detective adventure online slot game that’ll have you join a man who goes by the name of the game in an attempt to stop the evil deeds of Doctor Wüten. Along the way, you’ll collect free spins and enjoy countless respins when you collect similar symbols. Adventure awaits!

Key Takeaways

  • The game has a respin feature that activates when you’re about to win after creating a winning combination. Symbols stay in place and reels spin again.
  • Filling the reels with the same symbol with the respin feature may lead to the game’s biggest payout, worth an amount of 500x your bet
  • The slot’s simple 5x3 setup and “line numbers” alongside the reels gives it a classic videoslot feel that old-timers like us are sure to love.

Jack Hammer Gameplay: What to Expect?

Fast-paced, highly profitable gameplay can be expected when you boot up the classic Jack Hammer slot game. Released in 2011, this is one of the few online slots that can stand the 10-year test of time, mostly thanks to a simple gameplay mechanic and the fact that it comes with a high return rate.

Sticky Wins are a crucial part of this casino slot gameplay. You’ll be able to keep a hold of your symbols when you create a payline, and the reels will spin again. Every time that you collect an additional symbol of the same type, you’ll get an additional spin - and a much bigger payout. 

jack hammer slot
A classic vibe and appealing features come together in the Jack Hammer slot game

Contrary to other online slots, there is no limit as to how many scatters you can collect: they’re able to fill up the reels. In fact, should you manage to collect 9 or more scatters, you’ll be getting 30 free spins.

Jack Hammer is a thrilling game with classic jazz music and a comic book theme. If you’re into superheroes, you’ll love this classic NetEnt slot. 

Jack Hammer Pros

  • One of NetEnt’s most popular slots
  • High RTP
  • Sticky Wins make for a unique gameplay mechanic

Jack Hammer Cons

  • Gameplay doesn’t feel as smooth as in modern slot games

What Makes Jack Hammer Unique?

The Jack Hammer slot game is made unique by its Sticky Win feature. It’s the key to unlocking the slot’s biggest wins, and a fantastic gameplay mechanic that we don’t see often in other slot games (apart from Jack Hammer 2, of course). 

Bonus Features, Bonus Gameplay & Special Features

The Jack Hammer slot gameplay is quite straightforward. Let’s take a look at the three main features that make it differ from a traditional feature-less online slot game to help you get a quick grasp of how the game works: 

  • Wilds: The “Wild” symbol substitutes any other symbol on the reels. If multiple winning combos would be possible, the Wild symbol substitutes the symbol that belongs to the highest-paying combination.
  • Scatters: Scatter symbols unlock free spins. You can collect as many as 15 scatters when playing jack hammer, but due to the Sticky Wins feature, you need to collect at least 5 to unlock a round with free spins.
jack hammer free spins
Free spins come with a multiplier, giving you even more money than in a base-game round

Sticky Wins

Any winning combination, on any payline will unlock a “Sticky Wins” respin. This will cause the symbols from the winning combination to stay in place, and it’ll make the reels spin again. If another equal symbol lands, you’ll get another respin; if one more lands, the same will happen.

jack hammer sticky wins
Create more winning combinations with the game's "Sticky Wins"

This will keep going until no equal symbols land on the reels, or until the reels are filled with the same symbol.

The feature will also activate if you collect three or more free spin scatters. Collecting scatters during a Sticky Wins round will unlock different free spin numbers based on how many scatters you can collect:

  • 5 Scatters: 10 Free Spins
  • 6 Scatters: 15 Free Spins
  • 7 Scatters: 20 Free Spins
  • 8 Scatters: 25 Free Spins
  • 9 to 15 Scatters: 30 Free Spins

RTP, Hitting Frequency & Volatility

Frequent winning rounds, solid payouts, and frequent wins define the Jack Hammer online slot experience. You don’t need to have an insane amount of luck to win here thanks to the game’s above average return rate and low volatility. 

  • RTP: 96.96%
  • Hit Frequency: Undisclosed, but should be around 30% to 35% 
  • Volatility: Low

Free Demo of Jack Hammer 

Try out the Jack Hammer slot game without taking any risks with our free demo version of the classic NetEnt slot: 

Available Bonuses to Play Jack Hammer for Real Money?

Many online casinos that host the Jack Hammer online slot game are also offering no deposit bonuses that you can use to play other games for free. 

Although Jack Hammer free spins aren’t common, you can use the bonus cash generated by spending the following no deposit bonuses to play Jack Hammer for free:

Ads disclosure
1 20 Free Spins No Deposit Claim bonus
2 40 Exclusive Free Spins
40 Exclusive Free Spins
Show bonus code
Claim bonus
3 20 Free Spins No Deposit
20 Free Spins No Deposit
Show bonus code
Claim bonus

Best Jack Hammer Alternatives

Jack Hammer is one of our favorite NetEnt slots, but there are a few alternatives that you’d like to consider trying out as well if you love games made by this software developer. Here are our top two choices:

Jack Hammer 2

If you love the first installment of the game, then you’ll want to give Jack Hammer 2 a go. The second iteration of the series comes with an RTP of 97.07% and even more paylines, boasting an impressive 99 ways to win. Free spins can have your wins doubled at any point in the game, whilst Jack’s goal is a bit different: you’ll have to save Pearl from drowning!


It’s impossible for us not to recommend what we think is NetEnt’s biggest ever hit: Starburst. The iconic online slot has been around for many years, among which he reigned as the most popular online slot game in the world for over 5 years. Simple gameplay mechanics make the game easy to pick up by beginners, but a large betting range makes it ideal for all sorts of gamblers.


7 / 10


Jack Hammer Verdict

Jack Hammer is a fantastic online slot with a high RTP and unique gameplay mechanics. Although the game stands the test of time, it’s clear that the gameplay doesn’t feel as smooth as that of other modern online slots created by top software developers. 

Still, if you’re looking for a classic slot to play, few will be able to match the features offered by Jack Hammer. Claim one of our recommended Jack Hammer bonuses and play the game for free!

Frequently asked questions

You’re more likely to find no deposit bonuses that yield free cash to be spent in the Jack Hammer slot game than Jack Hammer free spins per se.

Jack Hammer comes with an RTP of 96.96%, almost 1% above the average online slot game.

Yes, you can play the Jack Hammer slot for free with the demo version that we show in this article or using one of the no deposit bonuses that we recommend.

Last updated  April 3, 2024
Find out more about The Casino Wizard's slots review guidelines, and why you can trust us.

About the author



Chief Content Writer


Chief Content Writer

Marco is an experienced casino writer with more than half a decade of gambling-related work on his back. He took a keen interest in gambling as a young adult and started writing expert content for the casino and sports betting niche in 2015. Now, he specializes in online slots, table games, and sports betting – producing well-researched content on all fronts of the iGaming world.

More about Marco