Most Popular Online Casinos in August

Rolling Slots

We are here to rock! Get the welcome bonus of 100 free spins plus up to €500!

Welcome offer:

100% Bonus up to

€100

+ 50 Free Spins

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

Rolling Slots

We are here to rock! Get the welcome bonus of 100 free spins plus up to €500!

  • 100% Bonus up to €100 + 50 Free Spins with your first deposit (New customers)
  • Bonus available on your second and third deposit
  • Portuguese players are accepted
  • Accepts Bitcoin and other cryptocurrencies
  • Play instantly in your browser – No installation required
  • Mobile-friendly games · Enjoy playing on smartphones and tablets
  • Live Casino · Play against real croupiers at Rolling Slots
  • Available in multiple languages, including English
  • Rating: 3.8/5
  • Popularity: This offer has been claimed by 416 visitors so far this month.
  • 72 Game Providers: Red Tiger, Platipus, Leap Gaming, Reevo, iSoftBet, Thunderkick, Skywind, Oryx Gaming, Turbo Games, 3 Oaks Gaming, Zillion, Gamebeat, and others.

Vera&John Casino

Plenty of excitement | €5,000 guaranteed winnings every day!

Welcome offer:

200% Bonus up to

€100

+ 100 Free Spins

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

Vera&John Casino

Plenty of excitement | €5,000 guaranteed winnings every day!

  • 200% Bonus up to €100 + 100 Free Spins with your first deposit (New customers)
  • Bonus available on your second and third deposit
  • Portuguese players are accepted
  • Play instantly in your browser – No installation required
  • Mobile-friendly games · Enjoy playing on smartphones and tablets
  • Live Casino · Play against real croupiers at Vera&John Casino
  • Vera&John Casino is available in 2 languages: English and Hungarian
  • Tested and certified by Casino Bonus Center · Rating: 3.3/5
  • Popularity: This offer has been claimed by 274 visitors so far this month.
  • 16 Game Providers: NetEnt, Bally Interactive, BetSoft, Games Global, NextGen Gaming, QuickSpin, Yggdrasil Gaming, IGT Interactive, Pragmatic Play, Thunderkick, Leander Games, Evolution Gaming, and others.

KikoBet

20 Free Spins for new players from Portugal plus a €450 Welcome Package!

Sign-up Bonus:

20

Free Spins

No deposit required

Terms & Conditions apply ·  Play responsibly

KikoBet

20 Free Spins for new players from Portugal plus a €450 Welcome Package!

  • 20 Free Spins · No deposit required
  • 100% Bonus up to €200 with your first deposit (New customers)
  • Bonus available on your second and third deposit
  • KikoBet offers exclusive bonuses for CasinoBonusCenter visitors
  • Portuguese players are accepted
  • Accepts Bitcoin and other cryptocurrencies
  • Play instantly in your browser – No installation required
  • Mobile-friendly games · Enjoy playing on smartphones and tablets
  • Live Casino · Play against real croupiers at KikoBet
  • Online sports betting
  • Available in multiple languages, including English
  • Tested and certified by Casino Bonus Center · Rating: 4.1/5
  • Popularity: This offer has been claimed by 160 visitors so far this month.
  • 26 Game Providers: Pragmatic Play, Spribe, Vibra Gaming, Salsa Technology, Evolution Gaming, iSoftBet, Yggdrasil Gaming, Casino Technology, Playtech, Gamzix, Play n GO, Foxium, and others.

Miami Club Casino

Claim 20 free spins, plus a €4,000 bonus on your first deposit!

Sign-up Bonus:

20

Free Spins

No deposit required

Terms & Conditions apply ·  Play responsibly

Explore bonuses at Miami Club Casino

Miami Club Casino

Claim 20 free spins, plus a €4,000 bonus on your first deposit!

  • 20 Free Spins · No deposit required
  • 400% Bonus up to €4,000 with your first deposit (New customers)
  • Bonus available on your second and third deposit
  • Miami Club Casino offers exclusive bonuses for CasinoBonusCenter visitors
  • Portuguese players are accepted
  • Accepts Bitcoin and other cryptocurrencies
  • Play instantly in your browser – No installation required · Optional game downloads available
  • Mobile-friendly games · Enjoy playing on smartphones and tablets
  • Miami Club Casino is available in English
  • Tested and certified by Casino Bonus Center · Rating: 3.1/5
  • Popularity: This offer has been claimed by 119 visitors so far this month.
  • Game Providers: WGS Technology and DragonGaming

Slots Capital

Get €100 Free with Your First €25 Deposit!

Sign-up Bonus:

15

Free Spins

No deposit required

Terms & Conditions apply ·  Play responsibly

Explore bonuses at Slots Capital

Slots Capital

Get €100 Free with Your First €25 Deposit!

  • 15 Free Spins · No deposit required
  • Bonus Code: CAPITAL15SPINS
  • 400% Bonus up to €100 with your first deposit (New customers)
  • Bonus Code: FIRST100FREE
  • Bonus available on your second and third deposit
  • Portuguese players are accepted
  • Accepts Bitcoin and other cryptocurrencies
  • Play instantly in your browser – No installation required · Optional game downloads available
  • Mobile-friendly games · Enjoy playing on smartphones and tablets
  • Slots Capital is available in English
  • Tested and certified by Casino Bonus Center · Rating: 2.9/5
  • Popularity: This offer has been claimed by 101 visitors so far this month.
  • Game Providers: DragonGaming, Saucify, Arrows Edge, Qora Games, and Rival

Casinoin

Get an exclusive 120% bonus plus 60 wager-free spins!

Welcome offer:

100% Bonus up to

€1,000

+ 100 cash spins

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

Casinoin

Get an exclusive 120% bonus plus 60 wager-free spins!

  • 100% Bonus up to €1,000 + 100 cash spins with your first deposit (New customers)
  • Portuguese players are accepted
  • Accepts Bitcoin and other cryptocurrencies
  • Play instantly in your browser – No installation required
  • Mobile-friendly games · Enjoy playing on smartphones and tablets
  • Live Casino · Play against real croupiers at Casinoin
  • Available in multiple languages, including English
  • Rating: 3.5/5
  • Popularity: This offer has been claimed by 88 visitors so far this month.
  • 58 Game Providers: Play n GO, PariPlay, eBET, Apollo Games, Red Rake, Foxium, Pragmatic Play, Push Gaming, Igrosoft, WorldMatch, DLV, Spigo, and others.

SportsBetting.ag

Online sports betting & Live betting odds · Up to €1,000 free on your first deposit

Welcome offer:

100% Bonus up to

€1,000

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

Explore bonuses at SportsBetting.ag

SportsBetting.ag

Online sports betting & Live betting odds · Up to €1,000 free on your first deposit

  • 100% Bonus up to €1,000 with your first deposit (New customers)
  • Bonus available on your second and third deposit
  • Portuguese players are accepted
  • Accepts Bitcoin and other cryptocurrencies
  • Play instantly in your browser – No installation required
  • Mobile-friendly games · Enjoy playing on smartphones and tablets
  • Live Casino · Play against real croupiers at SportsBetting.ag
  • Online sports betting
  • Play poker online at SportsBetting.ag – Online poker room
  • SportsBetting.ag is available in English
  • Tested and certified by Casino Bonus Center · Rating: 2.9/5
  • Popularity: This offer has been claimed by 88 visitors so far this month.
  • Game Providers: DGS, Visionary iGaming, Fresh Deck, and BetSoft

Top 10 Online Casino Bonuses in Portugal (August 2025)

Expert-Rated Real Money Casinos with Top Bonuses

Looking for the best online casinos in Portugal? Our expert team has tested and reviewed hundreds of real money gambling sites to bring you the top 10 choices for August 2025. 888Casino, GambleZen Casino, and Mundoapostas lead our rankings, standing out for their extensive selection of high-paying slots, immersive live dealer tables, exclusive bonuses, and lightning-fast payouts.

Most Popular Online Casinos in Portugal

Curious which brands stand out among Portuguese players right now? Here are the top 3 most popular online casinos in the last 30 days—each trusted for their excellent bonuses, diverse games, and reliable payouts:

  1. GambleZen Casino – Ranked as the #1 most popular online casino among Portuguese players this month. Check why GambleZen Casino is so popular in Portugal
  2. Mundoapostas – Holds the #2 spot in popularity with Portuguese players for August 2025. See Current Bonuses at Mundoapostas
  3. KikoBet – Currently ranked #3 among Portugal’s most played online casinos. View Available Promotions at KikoBet

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

Online Casinos PortugalWelcome Bonus

Ganhe até 1.000€ no bónus de boas-vindas

Bonus of 100% up to €1,000

€3,625 in Bonuses + 350 Free Spins

Bonus of 200% up to €500 + 100 Free Spins

Exclusive free bonuses for Portuguese players!

Bonus of 100% up to €500

20 Free Spins for New Players!

Bonus of 100% up to €200

€5 totally free plus €1,000 bonus

Bonus of 100% up to €300

Up to €3,000 in bonuses!

Bonus of 100% up to €1,000

20 Free Spins for Portuguese Players!

Bonus of 100% up to €100

Get ready for a wild ride!

Bonus of 100% up to $5,000

Boosted odds, enhanced winnings!

Bonus of 100% up to €500 + 200 Free Spins

Exclusive 200% Bonus

Bonus of 200% up to €200

* 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 Portuguese players to ensure you get the biggest sign-up bonuses, top-tier games, and the most rewarding loyalty programs.