Duel of Night & Day
Pragmatic Play · RTP 96.47% (varies) · Up to 10,000x
21
8/10
UKGC Verified
Updated Offer
Get 70 Bonus Spins on Book of Dead
Reviewed by A. Lynch
·
Updated: 2026-04-15
Quick Summary: 21 is a UKGC-licensed online casino. Get 70 Bonus Spins on Book of Dead. Our rating: 8/10.
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21 Casino Review
21 is a UK-licensed online casino. The casino offers a wide selection of games including slots, table games, and live casino options.
New players can claim Get 70 Bonus Spins on Book of Dead.
Pros & Cons
✓ Pros
- UKGC licensed and regulated
- Welcome bonus available
- Mobile-friendly
✗ Cons
- Detailed review coming soon
Casino Details
| Licence | UKGC |
| Our Rating | 8/10 |
Welcome Bonus
Get 70 Bonus Spins on Book of Dead
18+. GambleAware.org. New players only. Welcome Offer consists of 70 Book of Dead bonus spins available with a minimum £15 first deposit. Bonus spins must be used within 10 days. Any winnings from bonus spins will be credited as bonus funds. Bonus funds are subject to wagering requirements of 10x before withdrawal. Affordability checks apply. Terms apply. Please gamble responsibly.
Slots Available at 21
Space Stacks
Push Gaming · RTP 96.23% (varies) · Up to 5,000x
Gonzo's Quest Megaways
Red Tiger · RTP 96% (varies) · Up to 20,000x
Legacy of Dead
Play'n GO · RTP 96.58% (varies) · Up to 5,000x
Squid Game GGANBU
Light and Wonder · RTP 96% (varies) · Up to 2,500x
Starburst
NetEnt · RTP 96.09% (varies) · Up to 500x
Static Nightmare Abyssways
Play'n GO · RTP 96.2% (varies) · Up to 30,000x
Sugar Rush 1000
Pragmatic Play · RTP 96.00% (varies) · Up to 25,000x
Tombstone RIP
Nolimit City · RTP 96.08% (varies · Up to 300,000x
Age of the Gods
Playtech · RTP 95.02% (varies) · Up to 10,000x
Big Bass Bonanza Megaways
Pragmatic Play · RTP 96.7% (varies) · Up to 4,000x
Biggest Vault
Red Tiger · RTP 96.14% (varies) · Up to 21,026x
Bison Battle
Push Gaming · RTP 96.40% (varies) · Up to 50,000x
Bloody Murder
Red Tiger · RTP 95.76% (varies) · Up to 16,400x
Bonanza Megaways
Big Time Gaming · RTP 96% (varies) · Up to 26,000x
Book of Dead
Play'n GO · RTP 96.21% (varies) · Up to 5000x
Cops N Robbers Bigger Big Money
Inspired Gaming · RTP 94.5% (varies) · Up to 2083x
Deck of Scurra
Print Studios · RTP 96.09% (varies) · Up to 20,000x
Diamond Mine Megaways
Blueprint Gaming · RTP 96.43% (varies) · Up to 10,000x
Disorder
Nolimit City · RTP 96.11% (varies) · Up to 23,500x
Frequently Asked Questions
Is 21 safe to play at?
Yes. 21 holds a valid UK Gambling Commission licence, which ensures strict standards for player protection, fair gaming, and responsible gambling.
What is the welcome bonus at 21?
Get 70 Bonus Spins on Book of Dead Terms and conditions apply.
Can I play on mobile?
Yes. 21 is fully mobile-optimised and works on iOS and Android devices through your browser.