Monster Casino Bonus Codes & Promotions for December 2025

Written by

Ramona Depares

Last Updated

August 4, 2025

Bonus Value & Fairness

9 /10

Our Bonus Value & Fairness score reflects the welcome bonus size, its terms, and the availability of other promotions.

9 /10

Sort by:

Popular New A-Z Z-A

Filter

$500

100

10000$

1000%

Showing 5 online casino bonuses

At Slotsspot.com, we believe in transparency with our readers. Some of the links to casino sites on our platform are affiliate links. This means that if you choose to click on one of these links and make a deposit, we may earn a commission at no additional cost to you. We appreciate your support, as it helps us keep delivering honest and detailed reviews. Just remember to gamble responsibly and follow your local laws.

Ads disclosure

The Expert Rating you see is our main score, based on the key quality indicators that a reliable online casino should meet. Read more about our rating methodology on the How we rate online casinos.

How we rate

Valid

for 1 days

7.4

1 Spin on Wheel of Spins Weekend

Min Deposit

£20

Wager

50x

Your chance to win %

Bonus worked?

18+. Opt-in Required. Deposit with promo code offer, valid every Friday till Sunday, once per day. Players can win randomly 5-500 Free Spins. A deposit of £20 is required. Wager the bonus 50x. Wheel of spins is valid for 24 hours and free spins are valid for 7 days from receipt. Max conversion: £20. Excluded Skrill and Neteller deposits. Full Terms apply

Valid

for 7 days

7.4

Up To 75 Free Spins

Min Deposit

£10

Wager

50x

Your chance to win %

Bonus worked?

18+. Opt-in Required. Deposit minimum £10. Claim offer up to 3x. Wager the bonus 50x. Bonus offer valid for 7 days from receipt. Max conversion: £20. Excluded Skrill and Neteller deposits. Full Terms apply.

Valid

for 1 days

7.4

1 Spin on Wheel of Spins Wednesday

Min Deposit

£20

Wager

50x

Your chance to win %

Bonus worked?

18+. Opt-in Required. Players can win randomly 5-500 Free Spins. Deposit with promo code offer, valid on Wednesdays. Min Deposit £20 required. Wager the bonus 50x. Wheel of spins is valid for 24 hours and free spins are valid for 7 days from receipt. Max conversion: £20. Excluded Skrill and Neteller deposits. Full Terms apply

Valid

For 30 days

7.4

Get £20 + 50 Free Spins

Min Deposit

£10

Wager

Your chance to win %

Bonus worked?

18+. New players only. Wager from real balance first. 2x wager the bonus on Bingo games and 20x wager the winning from Free Spins. Bonus valid 30 days / Free spins valid 7 days from receipt. Max conversion: 3 times the bonus amount or from free spins: £20. Min Deposit £10 required.

Valid

For 30 days

7.4

Up To £1,000 + 100 Free Spins

Min Deposit

£20

Wager

50x

Your chance to win %

Bonus worked?

18+. New players only. Wager from real balance first. 50x wager the bonus. Selected games only. Wager calculated on bonus bets only. Bonus valid 30 days / Free spins valid 7 days from receipt. Max conversion: 3 times the bonus amount or from free spins: £20. Min Deposit £20 required.

Best Alternative Bonuses at Other Casino Sites

Valid

for 7 days

7.2

500% Up To $90,000 + 100 Free Spins

Min Deposit

$10

Wager

40x

Claim bonus

TrustDice Casino bonuses

Your chance to win %

Bonus worked?

18+. T&Cs apply

Valid

for 1 days

7.7

Up To $50,000 VIP Wheel

Min Deposit

$500

Wager

Claim bonus

Wild.io Casino bonuses

Bonus worked?

18+. T&Cs apply

Valid

for 7 days

7.4

225% Up To 31,500 USDT + 100 Free Spins

Min Deposit

20 USDT

Wager

40x

Claim bonus

bets.io bonuses

Your chance to win %

Bonus worked?

18+. T&Cs apply

Valid

3 Times

6.5

Up To $23,000 VIP Crypto Offer

Min Deposit

$1,000

Wager

35x

Claim bonus

El Royale Casino bonuses

Your chance to win %

Bonus worked?

18+. T&Cs apply

Valid

5 times

220% Up To $22,000 + 55 Free Spins Crypto

Min Deposit

$1000

Wager

35x

Claim bonus

Las Atlantis Casino bonuses

Your chance to win %

Bonus worked?

18+. T&Cs apply

Bonuses from Monster Casino Sister Sites

Valid

for 7 days

1 Wheel Spin Up To 500 Free Spins Weekend

Min Deposit

£20

Wager

50x

Betreels Casino bonuses

Your chance to win %

Bonus worked?

18+. Opt-in Required. Deposit with promo code offer, valid every Friday till Sunday, once per day. Players can win randomly 5-500 Free Spins. Min Deposit £20 required. Wager the bonus 50x. Wheel of spins is valid for 24 hours and free spins are valid for 7 days from receipt. Max conversion: £20. Excluded Skrill and Neteller deposits. Full Terms apply

Valid

for 7 days

7.1

Up To 100 Free Spins

Min Deposit

£20

Wager

50x

Watch My Spin Casino bonuses

Your chance to win %

Bonus worked?

18+. Opt-in Required. Players can win randomly 5-100 Free Spins. Min Deposit £20 required. Wager the bonus 50x. Free spins or any winnings from the free spins must be used within 7 days from receipt. Max conversion: £20. Excluded Skrill and Neteller deposits. Full Terms apply.

Valid

for 7 days

Up To 100 Free Spins

Min Deposit

£20

Wager

50x

Millionaire Casino bonuses

Your chance to win %

Bonus worked?

Valid

for 2 days

20% Up To £500 on Sundays

Min Deposit

£10

Wager

50x

Dazzle Casino bonuses

Your chance to win %

Bonus worked?

18+. Opt-in Required. Min Deposit £10. Wager the bonus 50x. Max conversion: 1x bonus amount. Bonus valid 2 days from credit. Available twice on Sundays only. Skrill and Neteller deposits excluded. Full Terms apply.

Valid

for 1 days

6.8

1 Wheel Spin Up To 500 Free Spins Weekend

Min Deposit

£20

Wager

50x

Lucks Casino bonuses

Your chance to win %

Bonus worked?

Valid

For 30 days

6.1

Get £20 + 50 Free Spins

Min Deposit

£10

Wager

Vegas Paradise Casino bonuses

Your chance to win %

Bonus worked?

Valid

for 2 days

6.4

45% Up To £45 + 15 Free Spins Friday

Min Deposit

£10

Wager

50x

Jackpot Paradise Casino bonuses

Your chance to win %

Bonus worked?

18+. Funded players only. Promo code required. Wagering from real balance first. 50x wagering the bonus or any winnings from free spins. Contribution varies per game. Selected games only. The wagering requirement calculated on bonus bets only. Bonus and free spins are valid for 48 hours from receipt. Max conversion: 3 times the bonus amount or from free spins: £/$/Euro 20. Excluded Skrill & Neteller deposits.

Valid

for 1 days

7.3

1 Wheel Spin Up To 500 Free Spins Weekend

Min Deposit

£20

Wager

50x

BBCasino bonuses

Your chance to win %

Bonus worked?

Valid

for 2 days

6.7

50% Up To £25 + 20 Free Spins Monday

Min Deposit

£10

Wager

50x

MrSuperPlay Casino bonuses

Your chance to win %

Bonus worked?

Valid

For 30 Days

6.8

200% Up To £50 + 50 Free Spins

Min Deposit

£10

Wager

50x

Hippozino Casino bonuses

Your chance to win %

Bonus worked?

18+. New Players Only. Wagering occurs from real balance first. 50х wagering the bonus. Contribution may vary per game. Available on selected games only. The wagering requirement is calculated on bonus bets only. Bonus valid 30 Days from receipt. Max conversion: 3х the bonus amount.

Monster Casino bonuses highlights and quick facts
Monster Casino Welcome Pack – What’s Included?
Deposit methods to receive bonuses at Monster Casino

Monster Casino bonuses highlights and quick facts

Number of bonuses

Min deposit

£10

Min withdrawal

£5

Withdrawal time

3–7 banking days

Payment methods

Pay By Phone, WebPayz , ... Show more

Neteller, MasterCard, Neosurf, PaysafeCard, Skrill, PayPal, Visa .

Show less

Available currencies

CAD, EUR, GBP, JPY , ... Show more

USD .

Show less

Monster Casino Review

Monster Casino Welcome Pack – What’s Included?

Monster Casino welcome bonus
Welcome bonus	Details Promo code
1st Deposit	50 Free Spins Full T&Cs apply
2nd Deposit	25% Up To £200 Full T&Cs apply
3rd Deposit	25% Up To £200 Full T&Cs apply
4th Deposit	25% Up To £600 Full T&Cs apply
5th Deposit	50 Free Spins Full T&Cs apply

Claim bonus

Deposit methods to receive bonuses at Monster Casino

Deposit methods	Deposit limits	Deposit time
	£10–£5,000	Instant
	£10–£5,000	Instant
	£10–£5,000	Instant
	£20–£5,000	Instant
	£20–£5,000	Instant
	£20–£5,000	Instant
	£10–£40	Instant
	£10–£700	Instant
	£15–£5,000	Instant