Latest Casino Bonuses for October 2025

Rockstar Casino

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Welcome offer:

100% Bonus up to

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+ 100 Free Spins

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

Rockstar Casino

Play to the Rhythm of Big Wins – Get €5,000 in Bonuses and 400 Free Spins

Oct 7, 2025

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  • Rating: 3.1/5
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bitStarz

Get up to ¥50,000 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

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Oct 1, 2025

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Slotastic

Enjoy 50 Free Spins—No Deposit Required—Plus a 250% Bonus and 50 Extra Spins!

Sign-up Bonus:

50

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No deposit required

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Explore bonuses at Slotastic

Slotastic

Enjoy 50 Free Spins—No Deposit Required—Plus a 250% Bonus and 50 Extra Spins!

Oct 1, 2025

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  • Bonus Code: ENJOY50
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  • Japanese players are accepted
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  • Tested and certified by Casino Bonus Center · Rating: 3.4/5
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Grand Hotel Casino

A Five-Star Online Casino Experience with $560 in Welcome Offers

Welcome offer:

100% Bonus up to

$100

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

Grand Hotel Casino

A Five-Star Online Casino Experience with $560 in Welcome Offers

Sep 28, 2025

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  • Bonus available on your second and third deposit
  • Japanese players are accepted
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Uptown Aces

$10 Free to try the games · Welcome bonus up to $2,500 whit No-max cashout!

Free Bonus:

$10

No deposit required

Terms & Conditions apply ·  Play responsibly

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Uptown Aces

$10 Free to try the games · Welcome bonus up to $2,500 whit No-max cashout!

Sep 26, 2025

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  • Bonus Code: UPTOWN10
  • 250% Bonus up to $2,500 with your first deposit (New customers)
  • Bonus Code: UNPACK
  • Japanese players are accepted
  • Today’s Biggest Jackpot: $1,714,609 · Game: Aztec's Millions
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  • Popularity: This offer has been claimed by 48 visitors so far this month.
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Players Palace

Welcome Bonuses up to $500 and Diamond-Level Rewards

Welcome offer:

100% Bonus up to

$150

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

Players Palace

Welcome Bonuses up to $500 and Diamond-Level Rewards

Sep 26, 2025

  • 100% Bonus up to $150 with your first deposit (New customers)
  • Bonus available on your second and third deposit
  • Japanese players are accepted
  • Accepts Bitcoin and other cryptocurrencies
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Luxury Casino

Enjoy exclusive welcome rewards totaling $1,000 with your first deposits!

Welcome offer:

100% Bonus up to

$150

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

Luxury Casino

Enjoy exclusive welcome rewards totaling $1,000 with your first deposits!

Sep 24, 2025

  • 100% Bonus up to $150 with your first deposit (New customers)
  • Bonus available on your second and third deposit
  • Japanese players are accepted
  • Accepts Bitcoin and other cryptocurrencies
  • Play instantly in your browser – No installation required · Optional game downloads available
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  • Over $3.4 Million in Progressive Jackpots
  • Available in multiple languages, including English
  • Tested and certified by Casino Bonus Center · Rating: 4.2/5
  • 39 Game Providers: Infinity Dragon, Evolution Gaming, Real Dealer Studios, Stormcraft, Area Vegas, OnAir Entertainment, Alchemy Gaming, Gold Coin Studios, Neon Valley, Oros Gaming, Half Pixel, Almond Gaming, and others.

Top 10 Online Casino Bonuses in Japan (October 2025)

Expert-Rated Real Money Casinos with Top Bonuses

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

Browse our expert-ranked list below and claim your exclusive welcome bonuses today!

Online Casinos JapanWelcome Bonus

80チャンスは億万長者になるために!

80 Free Spins

Claim up to ¥50,000 in Bonuses

Bonus of 100% up to ¥10,000 + 180 Free Spins

Casino Fun, Beach Vibes, Gangster Style

Bonus of 225% up to $1,000 + 100 Free Spins

Daily slots tournaments

Bonus of 100% up to $400

$900 Welcome bonus + 110 extra spins!

Bonus of 100% up to $300 + 100 Free Spins

Get a Free Spin on the Wish Wheel

Bonus of 100% up to $1,000

Sportsbook, casino, live casino

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ジャックポットが当たる150回のチャンスをゲット

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The best games, all in a safe place

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Triple-Powered Welcome Bonus

Bonus of 100% up to ¥25,000 + 400 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 Japanese players to ensure you get the biggest sign-up bonuses, top-tier games, and the most rewarding loyalty programs.