What is the Duel.com promo code?

The Duel.com promo code is Betrefs. Enter it when you sign up to join through Betrefs. Duel.com's own rewards: $1M monthly race.

How do I use the Duel.com promo code?

Create an account on Duel.com, open the promo, referral or affiliate code field (usually in your profile, the deposit screen or the rewards page), enter Betrefs and confirm.

Does the code work if I already have an account?

Most sites only let you enter a referral code once, and some only for new accounts. If you've never entered a code on Duel.com, you can usually still add Betrefs.

We score Duel.com 7.5/10. Our review covers fairness, payouts, KYC and what players say on Trustpilot.

What is Duel.com's house edge?

Duel.com's house edges: Dice 0%, Crash 0%, Mines 0%. These come from Duel.com's own pages or its game payouts; see the house edge table for each source.

Duel.com Promo Code October 2026

Rewards on Duel.com

$1M monthly race

Monarch's crypto casino with 0% house edge originals and instant rakeback. The fairest maths we've seen, and some of the angriest players.

Code

Claim bonus

18+ · Bonus terms set by Duel.com apply

How to use code Betrefs

1Open Duel.com with the button above and sign up (most CS2 sites use Steam sign-in).
2Find the promo, referral or affiliate code field: usually in your profile, the rewards page or the deposit screen.
3Enter Betrefs and confirm. The bonus is credited straight away or on your first deposit.

What the Duel.com code gives

$1M monthly race. Duel.com sets the exact conditions; check them on the site before you deposit.

Is Duel.com worth it?

7.5/ 10 Betrefs score

+ 0% house edge on its originals; on-chain data measured just 0.15%
+ Up to 50% instant rakeback with no wagering
+ Huge volume: about $372 million in crypto deposits a month
− 2.1/5 on Trustpilot, with players reporting balances stuck or drained
− Anjouan licence, which players point out offers little protection

Read our full Duel.com review →

Duel.com at a glance

Games: Dice, Crash, Mines, Slots, Blackjack, Keno, Limbo, Plinko
Deposits: 16 cryptocurrencies, Card (via on-ramp)
Withdrawals: Crypto
License: Anjouan
Provably fair: Yes
Trustpilot: 2.2 / 5 from 162 reviews

Duel.com promo code FAQ

What is the Duel.com promo code?: The Duel.com promo code is Betrefs. Enter it when you sign up to join through Betrefs. Duel.com's own rewards: $1M monthly race.
How do I use the Duel.com promo code?: Create an account on Duel.com, open the promo, referral or affiliate code field (usually in your profile, the deposit screen or the rewards page), enter Betrefs and confirm.
Does the code work if I already have an account?: Most sites only let you enter a referral code once, and some only for new accounts. If you've never entered a code on Duel.com, you can usually still add Betrefs.
Is Duel.com legit?: We score Duel.com 7.5/10. Our review covers fairness, payouts, KYC and what players say on Trustpilot.
What is Duel.com's house edge?: Duel.com's house edges: Dice 0%, Crash 0%, Mines 0%. These come from Duel.com's own pages or its game payouts; see the house edge table for each source.