The only real 0% house edge blackjack in crypto. Perfect rules, provably fair, 100% RTP with basic strategy at duel.com.
True Fairness
With Strategy
Every Hand
Duel Blackjack is the revolutionary provably fair variant at Duel Casino (duel.com) – the only blackjack game with true 0% house edge and 100% RTP when played optimally. Simplified yet perfect rules eliminate built-in advantages found in standard blackjack.
Dealer stands on soft 17, unlimited splits/doubles – pure skill and variance. Every hand verifiable via seeds, making it the fairest blackjack in crypto gambling.
These player-friendly rules achieve exact 100% RTP with perfect basic strategy.
Follow this chart for optimal play (approximate – exact varies slightly by rules):
| Your Hand | Dealer Upcard 2-6 | Dealer Upcard 7-A |
|---|---|---|
| Hard 8 or less | Hit | Hit |
| Hard 9-11 | Double (if allowed) else Hit | Double/Hit |
| Hard 12-16 | Stand (12-16 vs 2-6) | Hit |
| Hard 17+ | Stand | Stand |
| Soft 13-17 | Double vs 5-6 else Hit | Hit |
| Soft 18 | Stand/Double vs 2-6 | Hit/Stand |
| Soft 19+ | Stand | Stand |
| Pairs | Always split AA & 88 | Strategic splits |
With perfect play: ~100% RTP (variance applies).
Standard blackjack has ~0.5% house edge due to dealer advantages. Duel removes these with perfect rules and no hidden tweaks – mathematical RTP hits 100%.
Up to daily limits: exact 100%. Beyond: 99.9%. Still the fairest blackjack anywhere.
Yes – perfect rules deliver 100% RTP with basic strategy (up to limits).
Follow basic strategy chart – memorize key decisions.
Single hand – focused play.
Standard rules – no hidden advantages.
Shoe reshuffles each hand – counting ineffective, skill in decisions.