Best Online Casinos 2021

Best Online Casinos » Best Online Casinos 2021

If you’re looking to play in the top online casinos for 2021, you’ve come to the right place. Mega Bonus Casino carefully evaluates various important criteria and reviews hundreds of casino sites, to present you the best casinos online that are worth playing for real money.

Check out our list of top online casinos that are licensed, offer fast payouts, have the best casino bonuses, and of course, provide tons of top casino games online.

Top Online Casinos 2021
Get up to:
€400 in Bonus
+ 20 Free Spins on Book of Dead No Deposit
* Bonus Code: BOOK20. New customers only. 18+ - Play Responsibly. 100% match bonus based on first & second deposit.
12 games
4.8 rating
4.8
T&Cs Apply
* New customers only. 18+ Play Responsibly

T&Cs
Get:
150% up to 1000€
+ 150 free spins
* New customers only. 18+ Play Responsibly
5 games
4.3 rating
4.3
T&Cs Apply
* New customers only. 18+ Play Responsibly

T&Cs
Get:
100% Bonus up to €$100
* New customers only. 18+ - Play Responsibly
10 games
4.5 rating
4.5
T&Cs Apply
* New customers only. 18+ - Play Responsibly

T&Cs
Bonus up to:
€400
Welcome Package
*New customers only. 18+ Play. 100% match bonus based
13 games
4.3 rating
4.3
T&Cs Apply
New customers only

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Bonus up to:
€1500
Welcome Package
*New customers only. 18+ Play Responsibly. Use Code: welcome1
12 games
4.5 rating
4.5
T&Cs Apply
* New customers only. 18+ Play Responsibly

T&Cs
Get your:
€$1600 in Bonus
* New customers only. 18+ - Play Responsibly. 1st / 2nd / 3rd / 4th Deposit - Match Bonus up to 400€$
4.3 rating
4.3
T&Cs Apply
* New customers only. 18+ Play Responsibly

T&Cs
Get:
20 Free Spins
+ 100% Bonus up to €100 & 200 Starburst spins
* New customers only. 18+ Play Responsibly
11 games
4.8 rating
4.8
Get up to:
$6,000 in Bonus
* New customers only. 18+ - Play Responsibly. 200% up to $2,000 match bonus based on your first three deposits. Use Code: SUPER300
3.8 rating
3.8
T&Cs Apply
* New customers only. 18+ Play Responsibly

T&Cs
Get:
500% Match Bonus
+ 25 No Deposit Free Spins
*New customers only. 18+ Play
1 game
4.3 rating
4.3
T&Cs Apply

500% Match Deposit Bonus of up to £/€/$2500, 150 Free Spins (Maximum Cashout 10x Deposited Amount, Min Deposit: $25, New players only)

25 Free Spins on Daikoku Blessings Slot (Maximum Cashout: $100, Playthrough: 30x, New players only)

Bonus up to:
€1000
+ 1000 Free Spins
*New customers only. 18+ Play Responsibly.
13 games
4.3 rating
4.3
T&Cs Apply
* New customers only. 18+ Play Responsibly

T&Cs
Bonus up to:
€200
+ 100 Free Spins
*New customers only. 18+ Play Responsibly. 100% match bonus based on first deposit.
5 games
4.3 rating
4.3
T&Cs Apply
*New customers only. 18+ Play Responsibly.
Get up to:
100% Bonus up to €500
+ 200 Free Spins
New customers only. 18+ Play Responsibly.
11 games
4.3 rating
4.3
T&Cs Apply
New customers only. 18+ - Play Responsibly
Get up to:
€130 in Bonus
* New customers only. 18+ - Play Responsibly. match bonus based on first deposit.
1 game
3.5 rating
3.5
T&Cs Apply
* New customers only. 18+ Play Responsibly

T&Cs
Get up to:
100% Bonus up to €50

New customers only. 18+ Play Responsibly.
2.8 rating
2.8
T&Cs Apply
* New customers only. 18+ - Play Responsibly

T&Cs
Get your:
150% Match bonus up to €$200
* New customers only. 18+ - Play Responsibly
3.3 rating
3.3
T&Cs Apply
* New customers only. 18+ - Play Responsibly

T&Cs
Get:
100% Bonus up to €200
* New customers only. 18+ - Play Responsibly
4.0 rating
4.0
T&Cs Apply
* New customers only. 18+ - Play Responsibly

T&Cs
Get up to:
100% Bonus up to $100
Two 50% Reload Bonuses
3.0 rating
3.0
T&Cs Apply
* New customers only. 18+ Play Responsibly

T&Cs
Get up to:
€$3.500 in Bonus
+ 20 free spins in Rook’s Revenge
* New customers only. 18+ - Play Responsibly.
1 game
3.8 rating
3.8
T&Cs Apply
* New customers only. 18+ Play Responsibly

T&Cs
Get up to:
100% Bonus up to $200
50% Bonus up to $300
25% bonus up to $300
3.3 rating
3.3
T&Cs Apply
* New customers only. 18+ Play Responsibly

T&Cs
Get up to:
100% up to €200
3.8 rating
3.8
T&Cs Apply
In order to claim the bonus from this promotion, the code CASINO must be filled out on the deposit page, prior to making the deposit. The minimum qualifying deposit for this promotion is 10 EUR. The wagering requirement for this promotion is 17.5X (seventeen-point-five times) the bonus plus deposit amount, and must be met within 30 days.

How we find the Best Online Casinos

All the casinos you’ll find on our site have passed our critical evaluation process. While some important aspects, such as licensing, casino payment options, and customer support, contribute heavily towards a casino scoring positive points, less significant features, such as bonuses, are given a lower weightage.

Below we’ll explain these evaluation standards in detail and explain why they should matter to you when you’re looking to play in real money online casinos.

Casino Licensing and Security

The best casino sites that we list on our site must have a valid gambling license. A licensed and regulated casino has many advantages for the players, such as a safe and secure gaming environment, fair casino rules, reliable payment options, support for responsible gaming, etc.

Reputed gambling authorities which issue betting licenses include The Malta Gaming Authority (MGA), UK Gambling Commission (UKGC), Curaçao EGaming, and the Gibraltar Gambling Commission.

Great Casino Games Selection

Whether you love to play online slots, a game of blackjack, or live casino dealer games, we ensure that the casinos we list have a great range of the best casino games online. A casino that offers a perfect balance of all the games, such as, online slots, jackpot slots, casino table games, live dealer games, bingo, etc. ranks high in our reviews.

Besides, only the casinos that offer the best games from top casino providers such as NetEnt and Microgaming that make it to our review list.

Best Deposit and Withdrawal Options

While reviewing a casino, we make sure that it has multiple reliable, secure, and fast deposit and cashout options. Moreover, the payout speed of the casino is also taken into consideration so that the players are offered instant payment methods with fast withdrawals.

Some of the best and most popular casino payment options include Visa/Mastercard credit and debit cards, eWallets such as Skrill, Neteller, ecoPayz, and cryptocurrencies (Bitcoin, Litecoin, etc).

Fast and Efficient Customer Support

When you’re playing in a top online casino, you’d expect 5-star customer service too. Because of the nature of online gambling, instant customer support is a must. Nowadays, almost all online casinos offer support through email and live chat. Some casinos additionally offer support by phone.

While reviewing a casino we evaluate the casino’s provided contact options and their customer response time.

Best Casino Bonuses

Top casinos online also provide the best bonuses and regular offers to their players. While all casinos offer Welcome Bonuses to new players, the quality of the bonus makes all the difference. We scrutinize the bonuses for their terms and conditions and take that into account while rating a casino’s bonuses and offers.

New Casinos
3.8 rating
Get up to $6,000 with the SUPER300 bonus code
3.3 rating
Get your 150% Match bonus up to €$200
3.5 rating
Get up to €130
0.0 rating
Get 100% up to €/$300
3.8 rating
Get up to €$3.500 and 20 free spins in Rook’s Revenge