Cash Defense Slot Review

Based on our expert’s review. Reviewed by
Print Studios Slots
Review by
Daisy Harrison
Updated: 09/10/2023
Review by
Daisy Harrison
Updated: 09/10/2023

Protect your fortress from legions of alien bugs in the Cash Defense slot by Print Studios. With 5 reels and 26 paylines, this unique slot comes with great bonus features. SuperSpinner multipliers help boost winnings in the base game, whilst the Tower Defense feature offers a mini game which results in free spins. Boasting a 96.29% RTP rate and 20,000 x stake max wins, explore this original title in our full Cash Defense review.

Max Win
20,000 x bet
T&Cs Apply

18+, T&Cs apply. New reg only. Opt in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 25 wager-free spins x10p to added to Big Bass Splash with each qualifying deposit, 3 day expiry. #ad

Print Studios
Type of Slot
Video Slot
Stakes Range
10p to £20
Bonus Features
Yes (3)
Free Spins/Multiplier
Max Win
20,000 x
High (4/5)

Cash Defense Demo

18plus uk-gambling-commission online-slot-co-uk-logo agechecked-verification-provider
T&Cs Apply 18+, T&Cs apply. New reg only. Opt in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 25 wager-free spins x10p to added to Big Bass Splash with each qualifying deposit, 3 day expiry. #ad
18plus uk-gambling-commission online-slot-co-uk-logo agechecked-verification-provider
T&Cs Apply 18+, T&Cs apply. New reg only. Opt in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 25 wager-free spins x10p to added to Big Bass Splash with each qualifying deposit, 3 day expiry. #ad

Recommended Casino

Best casinos to play Cash Defense slot with real money

100% Bonus up to £100 + 100 Free Spins
T&Cs Apply

18+ new players only. Minimum deposit: £20. Maximum £100 bonus. Max bet with an active bonus: £2. Wagering requirement 100% match bonus: 30 times sum of deposit + bonus. Max redeemable from welcome bonus: £500. 100 Free Spins are given out 20 per day on Book of Dead for 5 days in a row, log in each day is required. Max Free Spins winnings: £100. Winnings from Free Spins are credited as bonus money with a wagering requirement of 45 times. Free Spins expire after 3 days. Some games may not be played with a bonus. Games may contribute differently when wagering a bonus. Play Responsibly! #ad

100% Bonus up to £100 + 20 Bonus Spins
T&Cs Apply

18+. New customers. Opt-in required. 20 Bonus Spins on “Sahara Riches Cash Collect” at 10p per spin and 100% Deposit Bonus up to £100 on first deposit (payment method and play restrictions apply). Min. deposit £10. 30x wagering for Bonus Spins and Deposit Bonus (game weighting applies). Max. £5/spin or £0.50/line. 30 days expiry. Please gamble responsibly • #ad

Deposit £10, get £40 Casino Bonus
T&Cs Apply

18+. New Customers Only. Minimum deposit £10. 50x wagering requirement apply. Bonus will expire 30 days after opt-in. Further T&Cs apply. #ad

100% Bonus up to £400 + 150 Free Spins
T&Cs Apply

New Players only. Min deposit: £/$/€10, Wager req: 20x deposit bonus, 25x free spins. 7 days to activate the spins, bonus spins expire 24 hours after activation. Bonus will be paid out in 10% increments to your cash account. Account balance is withdrawable at any time. Upon withdrawal, any remaining bonus is forfeited. Max bet is: £/$/€10. Play responsibly. #ad

Castle Defense RTP, Details & Wager Limits

Reels/Paylines: 5 reels + 26 paylines

Stakes Range: 10p to £20

Max Win: 20,000 x stake per spin

RTP: 96.29%

The Castle Defense slot has 5 reels and 26 fixed paylines. A rather regular layout, wins are created in a traditional way too. Simply land 3 or more matching symbols from left to right, beginning from reel 1, across any payline.

You can enjoy the game for as little as 10p, up to £20, per spin. To change your bet, use the arrow symbols to the sides of the bet amount above the main spin button. In some jurisdictions, though not the UK, you’ll also find an Autospin button. You can use this to play between 10 and 1,000 spins without clicking. Note that there’s no option to set win or loss limits, so use the function with caution!

Cash Defense has an RTP rate of 96.29%, which above the average for most new online slots. The RTP rate also increases if you use the Feature Bet option. We’ll talk more about this later.

Finally, Cash Defense offers max wins of 20,000 x your stake and has a high volatility of 4/5. Bigger wins come via the SuperSpinners feature which adds multipliers to the reels.

Theme – defend your medieval castle from, erm, bugs?

Theme: Medieval

High Value Symbol: Mentarch

Compatibility: Mobile, Tablet, Desktop


At first glance, the Castle Defense slot might look like your average medieval game. The background boasts bright blue skies, green pastures and stoney turrets. However, all is not as it seems. In fact, your idyllic stronghold has been attacked by aliens. Alien bugs that is. This creative storyline, as well as a rousing soundtrack, sets the mood of perfectly, as this is far from a normal slot.

Upon the reels are alien bugs of different formats – each with their own names. At the lower end of the table are crawling creatures, the middle is made up of Alan and Steve (what went on there?!), and the higher value symbols are more creepy. The Mentarch is the slot’s highest paying symbol, rewarding you with 50 x your bet for a 5-of-a-kind combination.

There’s no wild symbols In this slot, but there is a bonus scatter. 3+ bonus scatters triggers the bonus round.

Symbol Payouts/Info
cash-defense-slot-dropax-symbolDropax 3, 4, 5 = 0.3, 0.6, or 1.5 x bet
cash-defense-slot-hornax-symbolHornax 3, 4, 5 = 0.3, 0.6, or 2 x bet
cash-defense-slot-bublax-symbolBublax 3, 4, 5 = 0.4, 1, or 2.5 x bet
castle-defense-slot-rhinax-symbolRhinax 3, 4, 5 = 0.4, 1.2, or 3 x bet
cash-defense-slot-steve-symbolSteve 3, 4, 5 = 1, 2, or 6 x bet
Alan 3, 4, 5 = 1, 3, or 7 x bet
cash-defense-slot-mantisa-symbolMantisa 3, 4, 5 = 1.2, 4, or 10 x bet
cash-defense-slot-scythra-symbolScythra 3, 4, 5 = 1.2, 5, or 12.5 x bet
cash-defense-slot-psykrona-symbolPsykrona 3, 4, 5 = 2.5, 7, or 25 x bet
cash-defense-slot-mentarch-symbolMentarch 3, 4, 5 = 4, 10, or 50 x bet
cash-defense-slot-scatter-symbolBonus Scatter 1-3+ triggers Tower Defense features

Cash Defense mobile


Released on the 25th of May 2023, the Cash Defense slot has been produced using the latest HTML5 technology. As such, it’s available to play on mobile, PC, laptop and/or tablet devices. Whilst the game is more complex than many online slots, it still looks great on smaller screens.

Cash Defense Bonus Features

Cash Defense boasts 3 main bonus feature. This includes SuperSpinners mulitpliers, a Tower Defence bonus round, and a bonus bet feature. Each feature has a lot of detail, so let’s dive in.

SuperSpinners Feature

Found in other Print Studios slots too, the SuperSpinners feature adds multipliers to your wins. In the base game and free spins, you’ll find 14 SuperSpinner positions between the reels. Triggered randomly, winning combinations that cross these positions will be multiplied by the value shown on the SuperSpinner.

If a winning combination crosses more than one SuperSpinner positions, it will be multiplied one by one. This can lead to huge wins!

If you enjoy the SuperSpinner feature, check out Royal Potato and Crystal Golem too.

Tower Defense Feature


If you land scatter symbols in the base game, you trigger the Tower Defense feature. There are two Tower Defense levels, the Mini TD feature and the Grand TD feature. Both grant access to a mini game where you must defend your towers, and both lead to a free spins round, though they work slightly different. Let’s take a look.

Mini TD Feature

In the base game, a Mini TD symbol can land on reel 5, triggering the feature. The feature then plays out in 2 parts.

  • Part 1 – 2 random towers appear, firing arrows at 10 different enemies. Each arrow harms the enemy.
  • Part 2 – You receive 1 free spin, with a jumbo symbol covering reels 1 and 3. If you managed to eliminate an enemy in Part 1, the enemy will appear on the jumbo symbol, giving you more chances of creating winning combinations.

Grand TD Feature


You must land 3+ bonus symbols in the base game to trigger the Grand TD feature. This plays out in 2 parts, similar to the Mini TD feature but with some notable differences.

  • Pre Part 1 – Before Part 1 begins, you must choose a configuration of 4 towers. Each type of tower has different qualities; arrow towers lead to more wins, whilst cannon towers lead to bigger wins.
  • Part 1 – Your towers fire weapons at 10 enemies. If you manage to eliminate 5 or more enemies, a second wave of 50 enemies ensures.
  • Part 2 – You receive 3 free spins, with a jumbo symbol covering reels 2, 3 and 4. In addition to the eliminated enemies appearing on the jumbo symbol, SuperSpinner multipliers are also present and increase by 1 per enemy defeated.

Feature Bet Feature

In certain jurisdictions the Castle Defense slot also has a Feature Bet option. This allows you to increase your stake to trigger certain features.

Feature Cost Description RTP
Scatter Boost 1.5 x bet Increases number of scatters on the reels 96.64%
Mini TD Feature 28.9 x bet Guaranteed trigger of Mini TD feature 96.83%
Grand TD Feature 94 x bet Guaranteed trigger of Grand TD feature 97.33%

Cash Defense Review Summary – Grand towers and SuperSpinners are key

Theme & Symbols

Sounds & Music

Bonus Features

RTP (96.29%)

Max Win (20,000 x)


Graphically, the Cash Defense slot is excellent. It reminds us a little of Holy Hand Grenade, also by Print Studios, but it’s definitely unique too. Whilst the aliens freaked this writer out (try having Entomophobia), we loved the attention to detail.

When it comes to gameplay, we were equally impressed. The Tower Defense rounds are where the game comes into its own. The first part (defending your towers) is completely original and quite nerve-wracking. Who knows how many enemies you’ll eliminate? After that, the jumbo symbol helps to bring in winning combinations. Triggering the Grand TD feature with increased SuperSpinners is your best chance at winning the maximum payout of 20,000 x bet. That said, eliminating more than 3 enemies is extremely rare.

As with most gamified slots, Castle Defense won’t appeal to everyone. Print Studios fans will surely be delighted by this new release, as will those who love the appeal of mini-games, though it’s definitely not for traditionalists. Give our demo a spin to see for yourself. Personally, we had loads of fun.

Print Studios always impress. We recommend trying Reapers. This sci-fi game scored 5/5 with the team, boasting 30,000 x max wins and 9 bonus features.

  • 20,000 x bet max wins
  • SuperSpinner multipliers
  • Original bonus features
  • High volatility
  • Could offer more free spins

Cash Defense FAQs

What is the Cash Defense RTP?

The Cash Defense RTP rate is 96.29% which is above the online slots average of 96%. It’s also a high variance game, with a volatility rating of 4/5

What is the Cash Defense max win?

Cash Defense offers max wins of 20,000 x your total bet per spin. Big wins will come from the SuperSpinner multipliers and the Grand Tower Defense round.

Are there any Cash Defense free spins?

Yes, the 2 Tower Defense features both offer you free spins, though they are limited. The Mini TD feature rewards you with just 1 free spin, whilst the Grand TD feature gives you 3 spins. That said, all free spins come with jumbo symbols, increasing your chances of winning.

Is there a Cash Defense demo?

Yes, you can play the Cash Defense slot demo right here at for free. Due to the unique features, we recommend giving it a try before playing for real money. Enjoy our demo on mobile, laptop, PC and/or tablet devices.

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