From the Welcome Bonus to VIP cashback, si6s rewards you on every deposit and every bet. Fresh offers and new opportunities, every single day.
Sign up before this exclusive double bonus offer expires
Ongoing Offers
Separate offers for new and existing players — each one designed specifically for them.
Register at si6s for the first time and get a 100% bonus on your first deposit. Deposit ৳500 and you'll have ৳1,000 to play with — double the balance.
Get up to 15% cashback on your net weekly losses. VIP members receive the highest rate — no application needed, it's credited automatically.
Place ৳5,000 or more in Sports Bets in a week and get a ৳500 free bet the following week. Use it on cricket, football, or any sport you like.
Get a total of 200 Free Spins across your first three deposits — 50, 70, and 80 spins per deposit respectively. Usable on selected Pragmatic Play slots.
Deposit every Friday and get a 50% reload bonus — up to ৳5,000. Don't miss this offer to make your weekend games even more exciting.
Invite a friend to si6s. Once they register and make their first deposit, you'll instantly receive a ৳300 bonus — with no limit on how many friends you can refer.
Dhaka Players' Favorite
Si6s brings a touch of excitement to the busy life of Dhaka. It's not just about the fun of playing — every bet and every spin earns you bonus points. Whether you're into slots, Live Casino, or Sports Betting, si6s's rewards system is always working in your favour.
How to Qualify for Bonuses
Claiming a bonus at si6s is straightforward. No complicated codes or separate applications required — most bonuses are credited to your account automatically.
Open a si6s account in just 2 minutes with your mobile number. Your Welcome Bonus package activates immediately after registration.
Deposit a minimum of ৳500 via bKash, Nagad, or Rocket. Your Welcome Bonus will be credited to your balance automatically.
Your main balance and bonus balance are displayed separately. Bet using your bonus — once the wagering requirement is met, you can make a withdrawal.
Once the wagering requirement is met, any winnings earned from the bonus are transferred directly to your main balance — ready to withdraw to bKash or Nagad.
Bonus Comparison
A side-by-side comparison of all bonuses available at si6s.
| Bonus Name | Amount | Wager | Validity |
|---|---|---|---|
| Welcome Bonus HOT | 100% | 5x | 30 Days |
| Weekly Cashback | 15% | 1x | 7 Days |
| Sports Free Bet New | ৳500 | 3x | 7 Days |
| Free Spin Package | 200 Spins | 20x | 14 Days |
| Friday Reload | 50% | 4x | 7 Days |
| Referral Bonus | ৳300 | 2x | 30 Days |
Cricket Bonus
Cricket betting at si6s comes with special odds boosts and match-specific promos. From Bandarban to Dhaka, millions of cricket fans across Bangladesh choose si6s for the extra rewards on every winning bet. Don't miss exclusive cricket bonuses on IPL, BPL, and international series.
View Cricket OddsLoyalty Program
Every bet you place on si6s earns loyalty points. The more you play, the bigger the rewards.
0 – 5,000 Points
5,001 – 20,000 Points
20,001 – 75,000 Points
75,000+ Points
Share your referral link. When a friend joins si6s, you get ৳300 and they get a 100% Welcome Bonus. More friends means more bonuses — with no limit.
VIP Bonus
Si6s VIP members get an entirely different class of bonus package — higher withdrawal limits, a personal account manager, and exclusive VIP promo codes every month. A seamless, hassle-free experience with nothing but rewards.
Learn About VIP
Detailed Guide
Bonus offers on online betting sites are nothing new, but si6s has built its bonus system a little differently. With Bangladeshi players in mind, the terms on every bonus are kept straightforward so that anyone can take advantage of them.
The most popular offer is the Welcome Bonus. New members who join si6s for the first time get a 100% bonus on their first deposit — up to ৳10,000. Deposit ৳1,000 and your balance becomes ৳2,000. This bonus isn't limited to casino or sports alone — you can use it across any section.
The cashback bonus is many players' favorite — and for good reason. It doesn't rely on luck. If you end the week at a loss, a percentage of that amount comes back to you. At si6s, standard members start at 5% cashback, while VIP Elite members can receive up to 15%. Best of all, there's nothing to apply for — cashback is credited to your balance automatically every Monday.
The free bet offer is especially useful for Sports bettors. Place a set amount in bets during the week and receive a free bet the following week. Any winnings from that free bet are credited as real money — just meet the wagering requirement. During IPL or World Cup season, si6s offers special cricket bonuses with even higher free bet amounts.
The referral bonus is an opportunity for everyone. While enjoying the platform yourself, invite friends or family to si6s and earn ৳300 for each person who joins. Your referred friend also receives a 100% Welcome Bonus. The more friends you invite, the more you earn — with no limit.
The loyalty points system is designed specifically for long-term si6s members. You earn points on every bet and can redeem them for bonus cash, free spins, or free bets. The more points you accumulate, the higher the tier you can reach — from Bronze all the way to Diamond VIP, with better perks at every level.
If you have any questions about bonuses, the si6s support team is always ready to help. Reach out via live chat and get a response within minutes. Feel free to ask about how to use a bonus, wagering requirements, withdrawals, or anything else.
All information related to your bonus usage at si6s is kept completely confidential. Your transaction and bonus history is never shared with third parties. To learn more, Privacy Policy Read.
Rebate Bonus
Si6s's rebate bonus program is as exciting as Dhaka's neon-lit nights. A set percentage of every bet you place accumulates as rebate — whether you win or lose. These rebate points can be converted directly into bonus cash or used on your next bet.
FAQ
Grab the Opportunity Now
Register in just 2 minutes and get a 100% bonus on your very first deposit. No hidden conditions.