Game Information
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Provider
Advantplay
Type
Slots
Theme
Vegas
Reels
5
Min Bet
Yes
Max Bet
1000
Blackjack 21 Slot: Comprehensive Data Analysis
Mathematical & Payout Model
Return to Player (RTP)
97.00%
Max Win Potential
500x
Frequently Asked Questions (FAQ)
| What is the RTP of Blackjack 21? | The RTP is approximately 97%. |
| What is the maximum win multiplier? | The maximum win multiplier is 500x your bet. |
| What is the minimum and maximum bet? | The minimum bet is around 0.2 (currency units) and the maximum bet is around 200. |
| What technology does the game use? | The game is built using JavaScript and HTML5. |
| When was the game last updated? | The game was last updated on August 6, 2025. |
Rachel Pine is our slots expert who has worked in the online gambling industry for 10+ years. Over the course of her career, Rachel has reviewed more than 30,000 slots.
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