Latest Casino Bonuses for August 2025 · Page 2 of 3

Slot Planet

22 Free Spins (No deposit required) plus up to $222 Bonus!

Sign-up Bonus:

22

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No deposit required

Terms & Conditions apply ·  Play responsibly

Slot Planet

22 Free Spins (No deposit required) plus up to $222 Bonus!

August 10

  • 22 Free Spins · No deposit required
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  • Tested and certified by Casino Bonus Center · Rating: 3.5/5
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SpinsUp Casino

Join the Circus-Inspired Casino to Unlock 300 Free Spins + $5,000 in Bonuses!

Welcome offer:

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$1,000 NZD

+ 100 Free Spins

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

SpinsUp Casino

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August 8

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  • Rating: 3.8/5
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EnergyCasino

Enjoy 30 Free Spins plus a $400 Welcome Package

Sign-up Bonus:

30

Free Spins

No deposit required

Significant terms: 18+. 30 Free spins (Spins value: $0.10) on Gates of EnergyCasino slot machine available once, to new customers who register at EnergyCasino using the promotional link. Maximum winnings $100. Spins expire after 7 days. · Terms & Conditions apply  ·  Play responsibly

EnergyCasino

Enjoy 30 Free Spins plus a $400 Welcome Package

August 7

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  • Tested and certified by Casino Bonus Center · Rating: 4.4/5
  • Popularity: This offer has been claimed by 211 visitors so far this month.
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Golden Tiger

Take $1,500 in Bonuses and Win Big with the Golden Tiger’s Luck

Welcome offer:

100% Bonus up to

$100

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

Golden Tiger

Take $1,500 in Bonuses and Win Big with the Golden Tiger’s Luck

August 5

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  • Bonus available on your second and third deposit
  • New Zealand players are accepted
  • Accepts Bitcoin and other cryptocurrencies
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  • Tested and certified by Casino Bonus Center · Rating: 4/5
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iWildCasino

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Welcome offer:

225% Bonus up to

$1,800 NZD

+ 200 Free Spins

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Terms & Conditions apply ·  Play responsibly

iWildCasino

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August 1

  • 225% Bonus up to $1,800 NZD + 200 Free Spins with your first deposit (New customers)
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  • iWildCasino offers exclusive bonuses for CasinoBonusCenter visitors
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  • Tested and certified by Casino Bonus Center · Rating: 4.1/5
  • Popularity: This offer has been claimed by 50 visitors so far this month.
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bitStarz

Claim up to $2,000 in Bonuses + $70,000 in Prizes for Every Player!

Sign-up Bonus:

30

Free Spins

No deposit required

Terms & Conditions apply ·  Play responsibly

Explore bonuses at bitStarz

bitStarz

Claim up to $2,000 in Bonuses + $70,000 in Prizes for Every Player!

July 29

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  • 100% Bonus up to $400 + 180 Free Spins with your first deposit (New customers)
  • Bonus available on your second and third deposit
  • bitStarz offers exclusive bonuses for CasinoBonusCenter visitors
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  • Over $13,666,109 in Jackpots by Games Global
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  • Tested and certified by Casino Bonus Center · Rating: 4.6/5
  • Popularity: This offer has been claimed by 64 visitors so far this month.
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Plangames

Cartoon-Themed Fun with $7,400 NZD in Bonuses + 800 Free Spins

Welcome offer:

100% Bonus up to

$1,500 NZD

+ 200 Free Spins

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

Plangames

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July 28

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  • Bonus Code: DEBUT
  • Bonus available on your second and third deposit
  • New Zealand players are accepted
  • Accepts Bitcoin and other cryptocurrencies
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  • Available in multiple languages, including English
  • Tested and certified by Casino Bonus Center · Rating: 3.9/5
  • 45 Game Providers: Swintt, TrueLab Games, Onlyplay, ICONIC21, Jelly Entertainment, Absolute Live Gaming, Turbo Games, 5Men Games, Gaming Corps, Clawbuster, Platipus, RubyPlay, and others.

Top 10 Online Casino Bonuses in New Zealand (August 2025)

Expert-Rated Real Money Casinos with Top Bonuses

Looking for the best online casinos in New Zealand? Our expert team has tested and reviewed hundreds of real money gambling sites to bring you the top 10 choices for August 2025. Zodiac Casino, EnergyCasino, and BruceBet lead our rankings, standing out for their extensive selection of high-paying slots, immersive live dealer tables, exclusive bonuses, and lightning-fast payouts.

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Online Casinos New ZealandWelcome Bonus

80 chances to be a millionaire for $1

80 Free Spins

30 free spins plus $400!

Bonus of 100% up to $200

Unleash your inner hero!

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NZ$2,500 Welcome Bonus + 250 Free Spins!

Bonus of 100% up to $500 NZD + 100 Free Spins

New Zealand Casino – 50 Spins for just $1

50 Free Spins

Unleash the Joker's fun!

Bonus of 225% up to $1,800 NZD + 200 Free Spins

40 chances to become a millionaire for $1

40 Free Spins

Get a Free Spin on the Wish Wheel

Bonus of 100% up to $1,000

Up to $2,000 + 150 Free Spins

Bonus of 100% up to $1,000 + 50 Free Spins

$200 bonus + 10 free spins on Vegas

Bonus of 100% up to $200 + 10 Free Spins

* Terms & Conditions Apply ·  Play responsibly

With nearly two decades of experience in the industry, CasinoBonusCenter.com has been analyzing and comparing online casinos since 2006. Our dedicated team of professionals has handpicked the most trusted casinos for New Zealand players to ensure you get the biggest sign-up bonuses, top-tier games, and the most rewarding loyalty programs.