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Top Bonuses and Promos for Gambling Online in March 2021

| March 4, 2021 6:15 am PDT

The leading online casinos and sportsbooks are in a constant battle for customers. This works in the favor of us gamblers, and one of the biggest benefits is the large number of new promotions launched every single month.

This March is no exception and you can find plenty of online gambling bonuses, promotions, and real money contests. They can boost your bankroll almost instantly if you play your cards right.

In this post, I share my selection of the best online gambling bonuses and promotions available in March 2021.

Latest Gambling Bonus Codes for March 2021

Let’s begin with the top bonus codes available in March 2021. I’ve selected online gambling offers for both sports betting and casinos, so you should be able to easily find something suitable for your needs.

Gambling Site Products Main Bonus US Players More
Vegas Casino Online Casino 150% up to $4,000 Yes VCO Bonus Codes
BetOnline Casino, Sportsbook, Poker 100% up to $3,000 Yes BetOnline Bonus Codes
Wild Casino Casino 250% up to $1,000 Yes Wild Casino bonus codes
BetNow Casino, Sportsbook 100% up to $500 Yes BetNow Bonus Codes
Red Dog Casino Casino 245% Yes Red Dog Casino Bonus Codes

I’ve highlighted the main deposit bonus for new players above, but the featured gambling sites have plenty of other real money promotions this month, so make sure to check the full list from the button in the last column.

The overall value you can collect if you exploit just one or two of the gambling offers above is insane and you can keep earning after that.

Online Casinos Game of the Month Promos for March 2021

One of the more regular promotions available across multiple casinos online is called Game of the Month. Plenty of gambling sites run it each month and that allows you to play a particular game for real money and earn extra benefits.

In most cases, the games promoted are slots, but they are other ones in certain months. Let’s see what’s available in March 2021.

Red Dog Casino Game of the Month – Mardi Gras Magic

Let’s begin with Red Dog Casino and the slot Mardi Gras Magic. You can get a 140% bonus and 65 free spins if you deposit in March.

As the name suggests, the slot is themed after the famous Mardi Gras festival. Here are some of the features of the game.

  • Provider: BetConstruct
  • Reels: 5
  • Paylines: 25
  • Jackpot: 50,000 coins
  • Free Spins Feature: Yes

Mardi Gras Magic is a decent video slot with a nice 50k coins jackpot. The game is extra appealing with the extra perks that come with the Red Dog Casino promo for March.

Las Atlantis Casino Game of the Month – Football Fortunes

Next in line is the offer of Las Atlantis Casino for Football Fortunes. The soccer-themed slot can bring you up to a 170% deposit bonus and 30 free spins in March.

Here are the key details about the game.

  • Provider: Real Time Gaming
  • Reels: 5
  • Paylines: 50
  • Progressive Jackpot: Yes
  • RTP: 97%

I must admit that I’m surprised to see both a progressive jackpot and a very high max RTP of 97%. This slot is certainly worth a shot even without a bonus, so taking advantage of Las Atlantis Casino’s Game of the Month feels like a must in March.

El Royale Casino Game of the Month – IC Wins

There’s another RTG slot that’s available in March and that’s IC Wins, El Royale’s Game of the Month. You can grab a 170% deposit bonus and 30 free spins on this one.

Here’s what the game offers.

  • Provider: Real Time Gaming
  • Reels: 6
  • Paylines: 4096
  • RTP: 96%
  • Best Feature: Re-spins with Random Multipliers

I would say that this might be the most entertaining option in March because of the excellent visuals and the number of paylines. IC Wins also comes with a re-spins feature that could skyrocket, so this one’s a good choice.

MyBookie Casino Raffle Thursdays

One of the online casino promotions for March that I like a lot is offered by MyBookie. Every Thursday you can qualify for a raffle worth $2,000 in cash prizes. Every $50 you wager in the casino earns you one ticket for the draw.

Here’s how the prize pool is distributed.

Position Prize
1 $275
2 $225
3 $175
4-10 $100
11-20 $50
21-25 $25

That deal is a pretty good reason to play on Thursdays, if you ask me! You obviously won’t become a millionaire from MyBookie Casino’s Raffle Thursdays, but you have a good chance to earn some extra money playing your favorite games.

It’s important to know that each prize comes with a 40x rollover requirement.

If you are interested in this promotion, feel free to join MyBookie and start working towards your tickets!

Betway Free Bet Club

If you love sports betting and going after your own custom wagers, Betway’s Free Bet certainly is one to consider. It’s one of the most consistent sports betting bonuses in March 2021 and relatively easy to claim every week.

You need to place wagers worth £/€25 from Saturday to Friday using the sportsbook’s Bet Builder feature. That would earn you two free bets, each worth £/€5, on the following Saturday and Monday.

Here are the additional terms of this Betway sports gambling promotion with real money.

  • Each of your wagers must include at least 3 selections to qualify.
  • The qualifying bets must be settled between Saturday and Friday to qualify.
  • You need to opt-in for this promotion.

The way I see it, you get an extra £/€10 value for wagering £/€25 every single week which is a nice little offer that you can consistently take advantage of. It’s one of the easiest promotions for sports betting available in March.

Super Slots Weekly Blackjack Tournaments

As a huge fan of blackjack, I simply felt to include this one in my list of online casino promotions in March. The game is usually ignored by most gambling websites because of the low house edge which is why I’m delighted to see Super Slots casino’s weekly tournaments in March.

There are two of them that can bring you extra prizes if you play the game with real money. For a start, there’s the $25,000 24-hour blackjack tournament held each Friday. The top 50 chip holders split the prize pool and the winner takes home $5,000! Here are all the rewards.

Position Prize
1 $5,000
2 $3,000
3-10 $1,000
11-20 $500
21-30 $250
31-40 $100
41-50 $50

The entry fee for this Super Slots blackjack tournament is only $10 and you start with 200 chips. There are unlimited $5 rebuys later on and each prize must be wagered 60 times prior to withdrawal.

If you prefer a more relaxed option that doesn’t require you to grind in a single day, there’s also a $10,000 weekly blackjack tournament that runs from Friday till Monday every week during March 2021. Here’s how the prize pool is distributed after each tournament is finished.

Position Prize
1 $3,000
2 $2,000
3 $1,000
4 $600
5 $400
6-10 $200
11-20 $100
21-30 $50
31-50 $25

You can enter with $10 which gives you 300 starting chips and there are unlimited $10 rebuys. The rollover terms are similar to the other Super Slots blackjack tournament.


I hope that you found interesting offers in my list of top gambling bonuses and promotions in March 2021. I’ve tried to select various deals that can deliver good opportunities for both sports betting and casino games with real money.

Don’t hesitate to drop me a line in the comments section if you want to know more about any of the bonuses and promotions mentioned here.

Jerry Summer

Jerry Summer has a wide-ranging interest in gambling and the gambling industry. He's made a living out of both playing poker and betting on sports.

The English Premier League and the NBA are among Jerry's primary areas of expertise. He's knowledgeable about many other sports, too, along with poker and several casino games.

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