Most Popular Online Casino Bonuses in March

ReloadBet

Free bonus for Portuguese players and €300 as welcome bonus!

Free Bonus:

€5

No deposit required

Terms & Conditions apply ·  Play responsibly

Access restricted in the United States

We regret to inform you that ReloadBet is not currently accepting registrations from users in the United States.

Click to select your country and customize your experience 

ReloadBet

Free bonus for Portuguese players and €300 as welcome bonus!

  • €5 free! No deposit required
  • 100% bonus up to €300 with your first deposit (New customers)
  • Portuguese players are accepted
  • Exclusive bonuses for Portuguese players
  • Accepts Bitcoin and other cryptocurrencies
  • Play directly in your browser – No software installation needed
  • Games for mobile devices · Play casino games on your smartphone or tablet
  • Live Casino · Play against real croupiers at ReloadBet
  • Online sports betting
  • Over 15,828,934 € in Jackpots by Games Global
  • Tested and certified by Casino Bonus Center · Rating: 3.9/5
  • Popularity: This offer has been claimed by 496 visitors so far this month.
  • 32 Game Providers: Play n GO, 3 Oaks Gaming, iSoftBet, Salsa Technology, Yggdrasil Gaming, Evolution Gaming, Red Tiger, Spribe, BRAGG, Blueprint Gaming, Playtech, Vibra Gaming, and others.

*Please note that ReloadBet is not available in the United States.

Desert Nights Casino

Immerse Yourself in an Oasis of Online Gaming with a Free €15 Bonus!

Welcome offer:

100% Bonus up to

€1,000

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

Explore bonuses at Desert Nights Casino

Desert Nights Casino

Immerse Yourself in an Oasis of Online Gaming with a Free €15 Bonus!

  • 100% bonus up to €1,000 with your first deposit (New customers)
  • Portuguese players are accepted
  • Accepts Bitcoin and other cryptocurrencies
  • Play directly in your browser – No software installation needed
  • Downloadable games are also available
  • Games for mobile devices · Play casino games on your smartphone or tablet
  • Tested and certified by Casino Bonus Center · Rating: 3.1/5
  • Popularity: This offer has been claimed by 296 visitors so far this month.
  • Game Providers: Rival, Arrows Edge, Qora Games, DragonGaming, and Saucify

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

Access restricted in the United States

We regret to inform you that KikoBet is not currently accepting registrations from users in the United States.

Click to select your country and customize your experience 

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 purchase
  • Bonus available on your third deposit
  • Portuguese players are accepted
  • Accepts Bitcoin and other cryptocurrencies
  • Play directly in your browser – No software installation needed
  • Games for mobile devices · Play casino games on your smartphone or tablet
  • Live Casino · Play against real croupiers at KikoBet
  • Online sports betting
  • Tested and certified by Casino Bonus Center · Rating: 4.1/5
  • Popularity: This offer has been claimed by 248 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.

*Please note that KikoBet is not available in the United States.

Uptown Aces

350 free spins · Welcome bonus up to $8,888!

Free Bonus:

$20

No deposit required

Terms & Conditions apply ·  Play responsibly

Explore bonuses at Uptown Aces

Uptown Aces

350 free spins · Welcome bonus up to $8,888!

  • $20 free! No deposit required
  • 250% bonus up to €2,500 + 50 free spins with your first deposit (New customers)
  • Bonus available on your second purchase
  • Bonus available on your third deposit
  • Portuguese players are accepted
  • Accepts Bitcoin and other cryptocurrencies
  • Play directly in your browser – No software installation needed
  • Downloadable games are also available
  • Games for mobile devices · Play casino games on your smartphone or tablet
  • Live Casino · Play against real croupiers at Uptown Aces
  • Tested and certified by Casino Bonus Center · Rating: 3.2/5
  • Popularity: This offer has been claimed by 195 visitors so far this month.
  • Game Providers: SpinLogic and Visionary iGaming

Rollino

Enter the fairground with an exclusive casino bonus up to €6,000!

Sign-up Bonus:

20

free spins

No deposit required

Terms & Conditions apply ·  Play responsibly

Access restricted in the United States

We regret to inform you that Rollino is not currently accepting registrations from users in the United States.

Click to select your country and customize your experience 

Rollino

Enter the fairground with an exclusive casino bonus up to €6,000!

  • 20 free spins · No deposit required
  • Register with bonus code "ROLLINO20" to receive 20 no deposit free spins
  • 200% bonus up to €3,000 + 100 free spins with your first deposit (New customers)
  • Bonus available on your second purchase
  • Bonus available on your third deposit
  • Portuguese players are accepted
  • Play directly in your browser – No software installation needed
  • Games for mobile devices · Play casino games on your smartphone or tablet
  • Live Casino · Play against real croupiers at Rollino
  • Online sports betting
  • Tested and certified by Casino Bonus Center · Rating: 4.1/5
  • Popularity: This offer has been claimed by 183 visitors so far this month.
  • 85 Game Providers: 1X2gaming, Platipus, Red Rake, Spinmatic, VIVO Gaming, High 5, Amatic, Pragmatic Play, Playbro, ThunderSpin, Barbara Bang, Thunderkick, and others.

*Please note that Rollino is not available in the United States.

Jackpot Capital

100 free spins with no deposit required plus a 250% bonus on first deposit!

Sign-up Bonus:

100

free spins

No deposit required

Terms & Conditions apply ·  Play responsibly

Explore bonuses at Jackpot Capital

Jackpot Capital

100 free spins with no deposit required plus a 250% bonus on first deposit!

  • 100 free spins · No deposit required
  • 250% bonus up to $2,500 + 50 free spins with your first deposit (New customers)
  • Bonus available on your second purchase
  • Bonus available on your third deposit
  • Portuguese players are accepted
  • Accepts Bitcoin and other cryptocurrencies
  • Play directly in your browser – No software installation needed
  • Games for mobile devices · Play casino games on your smartphone or tablet
  • Live Casino · Play against real croupiers at Jackpot Capital
  • Tested and certified by Casino Bonus Center · Rating: 3.4/5
  • Popularity: This offer has been claimed by 156 visitors so far this month.
  • Game Providers: SpinLogic and Visionary iGaming

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

Access restricted in the United States

We regret to inform you that Vera&John Casino is not currently accepting registrations from users in the United States.

Click to select your country and customize your experience 

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 purchase
  • Bonus available on your third deposit
  • Portuguese players are accepted
  • Play directly in your browser – No software installation needed
  • Games for mobile devices · Play casino games on your smartphone or tablet
  • Live Casino · Play against real croupiers at Vera&John Casino
  • Tested and certified by Casino Bonus Center · Rating: 4/5
  • Popularity: This offer has been claimed by 148 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.

*Please note that Vera&John Casino is not available in the United States.

Top 10 Online Casinos in Portugal (March 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 March 2025. 888Casino, Rollino, 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.

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

Online Casinos PortugalWelcome Bonus
Bonus of 100% up to €1,000
Bonus of 200% up to €3,000 and 100 free spins
Bonus of 100% up to €500
Bonus of 100% up to €200
Bonus of 100% up to €300
Bonus of 100% up to €1,000
Bonus of 100% up to €100
Bonus of 100% up to €100 and 180 free spins
Bonus of 100% up to €500 and 200 free spins
Bonus of 100% up to €3,000 and 50 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 Portuguese players to ensure you get the biggest sign-up bonuses, top-tier games, and the most rewarding loyalty programs.

Restrictions for the United States

Online gambling laws vary across U.S. states. Some have deemed it illegal, others have yet to address its legality, and a few have regulated and legalized it.

CasinoBonusCenter.com does not endorse or facilitate the use of its links or information in regions where it's considered illegal.

Regardless of these provisions, it remains your responsibility to ascertain the legality of using this website based on your jurisdiction.