Register at 3k666 and start enjoying a stream of exciting offers from day one. Extra bonuses on every deposit, daily cashback, and special festive promotions — all making your gaming experience even better.
All 3k666 promotions in one place — pick the one that suits you
Get a 150% bonus on your first deposit. Deposit 100 BDT and receive 250 BDT. The biggest offer available for new members.
Get back 10% of your daily losses the following morning, up to 5,000 BDT in cashback. No extra conditions.
Invite a friend to 3k666. Once they make their first deposit, you get 500 BDT credited directly. The more friends you refer, the more you earn.
20% reload bonus on every sports deposit, up to 3,000 BDT. Usable up to three times per week.
Earn 8% cashback every week at the Live Casino, up to BDT 10,000. Applies to Baccarat, Roulette, and all live games.
Earn points on every bet. Convert accumulated points into real cash. Regular players earn 5x points on special days.
Bonus offers are common across online gaming platforms, but not all bonuses are equal. In many places, the terms are so complicated that withdrawing the bonus becomes nearly impossible. 3k666 is genuinely different — every promotion comes with simple, clearly written terms that are realistically achievable.
Open a new account at 3k666 and get a 150% bonus on your first deposit. Deposit 100 BDT and your balance becomes 250 BDT. This bonus is valid across Sports Betting, casino, and slots. Just sign up and make your first deposit — no bonus code required.
In gaming, some days you win and some days you don't — that's just how it goes. With 3k666's Daily Cashback offer, 10% of your net daily losses is returned to your balance by 10:00 AM the next morning. You can receive up to 5,000 BDT in cashback. No separate application needed — it's credited automatically as long as your account is active.
Joining the 3k666 referral program is simple. You'll find your unique referral link in your dashboard. When someone registers using your link and completes their first deposit, 500 BDT is added to your account. There's no cap on referrals — the more friends you bring in, the more you earn.
3k666's Reload Bonus is a great opportunity for regular Sports Betting players. Earn a 20% bonus on every sports deposit, up to BDT 3,000. The bonus applies to up to three deposits per week, so regular players can build up a solid extra balance every week.
Been playing at 3k666 for a while? The Loyalty Points Program is made for you. You earn points at a set rate on every bet. On special days — like weekends or festive seasons — you can earn up to 5x points. Accumulated points can be converted directly into real cash and withdrawn.
Eid, Puja, World Cup — 3k666 runs special promotions during Bangladesh's major festivals and events. Bonus percentages go up, tournaments are held, and exclusive prizes are on offer. These are limited-time deals, so keep an eye out.
Welcome Bonus: 150%
Daily Cashback: 10%
Refer Bonus: BDT 500/person
Loyalty Points: Unlimited
Any registered member is eligible for bonuses. Must be 18 or older, with a valid mobile number and an active payment method.
All 3k666 bonus offers are managed through an SSL-encrypted system. No bonus is ever deducted automatically.
Get started with any 3k666 promotion in just four simple steps
Create a free 3k666 account with your mobile number. Takes only two minutes.
Deposit as little as 100 BDT via Mobile Banking, Nagad, or Rocket. Your bonus is credited instantly.
Use your bonus balance to play Sports, Casino, or slots.
Once the bonus conditions are met, withdraw your winnings directly to your mobile wallet.
See at a glance which bonus suits you best
| Promotions | Amount | Who it's for | Validity | Automatic |
|---|---|---|---|---|
| Welcome Bonus | 150% | New Members | Once | Yes |
| Daily Cashback | 10% (up to BDT 5,000) | All Members | Daily | Yes |
| Refer Bonus | BDT 500/person | All Members | Unlimited | Yes |
| Sports Reload | 20% (up to BDT 3,000) | Sports Bettors | 3x per week | Yes |
| Casino Cashback | 8% (up to BDT 10,000) | Casino Members | Weekly | Yes |
| Loyalty Points | Points per bet | Regular Members | Ongoing | Yes |
Common questions about 3k666 promotions answered
Welcome Bonus, daily cashback, and a referral program — all available exclusively at 3k666. Don't wait, get started now.