From your very first deposit to your hundredth, sis6s rewards you at every step. Welcome bonuses, daily reloads, cashback, referral rewards — there's always something extra waiting for you.
Every promotion below is live and available to eligible sis6s members. Check back regularly — new offers are added throughout the month.
Your first deposit at sis6s is matched 100%, up to ৳5,000. Deposit ৳1,000 and play with ৳2,000 — it's that straightforward. Valid on all games including sports, live casino, and slots.
Every single day you make a deposit at sis6s, you get an extra 20% on top. No complicated opt-in process — just deposit and the bonus is credited automatically to your account.
Had a rough week? sis6s has your back. Every Monday, we calculate your net losses from the previous week and return up to 15% straight to your balance — no questions asked.
Share your unique sis6s referral link with friends. When they register and make their first deposit, you both get ৳500 credited instantly. No cap on how many friends you can refer.
Download the sis6s app and make your first deposit through it to unlock an extra 10% on top of any active promotion. Stacks with the welcome bonus for new players.
Specifically for sports bettors — get a 25% reload bonus on deposits made for rugby, cricket, and football betting. Available every weekend at sis6s, credited within minutes.
Let's be honest — a lot of online platforms advertise big bonuses but bury the real conditions in pages of fine print. At sis6s, we try to keep things as transparent as possible. Every bonus on this page comes with clear wagering requirements, a defined validity period, and no hidden traps. What you see is what you get.
The most important thing to understand about any bonus is the wagering requirement. This is the number of times you need to play through the bonus amount before you can withdraw it as real cash. For example, if you receive a ৳1,000 bonus with a 10x wagering requirement, you need to place ৳10,000 in total bets before that bonus converts to withdrawable funds. sis6s keeps its wagering requirements among the lowest in the Bangladesh market — most of our bonuses sit between 5x and 10x, which is genuinely achievable for regular players.
The welcome bonus is the first thing most new players look at, and sis6s delivers a solid one. A 100% match on your first deposit up to ৳5,000 means you're doubling your starting bankroll from day one. Unlike some platforms that restrict the welcome bonus to specific games, sis6s lets you use it across sports betting, live casino, slots, and fishing games. That flexibility is genuinely useful — you're not forced into one corner of the platform just to clear a bonus.
To claim it, simply register a new account, make your first deposit of at least ৳500, and the bonus is credited automatically. There's no promo code required, no customer service ticket to raise. The system handles it instantly. You'll see the bonus balance appear in your account alongside your real money balance, and you can track your wagering progress from the account dashboard.
The daily reload bonus is probably the most underrated promotion at sis6s. A lot of players focus on the welcome offer and forget that there's a 20% bonus available every single day after that. If you're a regular player who deposits a few times a week, this adds up to a significant amount of extra value over the course of a month.
The daily reload applies to any deposit made on a given calendar day. There's no minimum number of days between claims — if you deposit on Monday, you get 20% extra. If you deposit again on Tuesday, same deal. The only condition is that you haven't already claimed a reload bonus on that same day. It's a simple, fair system that rewards consistent players without making them jump through hoops.
Gambling has variance — sometimes things don't go your way no matter how well you play. The weekly cashback at sis6s is designed to soften those rough patches. Every Monday morning, the system calculates your net losses from the previous week (Monday to Sunday) and returns up to 15% of that amount to your balance.
The cashback percentage scales with your activity level. Casual players receive a base rate, while more active members of the sis6s community receive higher cashback percentages. The exact rate for your account is visible in your promotions dashboard after you log in. Cashback is credited with a low 5x wagering requirement, making it one of the easiest bonuses to convert into real withdrawable cash.
The referral program at sis6s is one of the most straightforward in the market. Log in, go to your account dashboard, and copy your unique referral link. Share it with friends, family, or anyone you think would enjoy the platform. When they register using your link and complete their first deposit, both of you receive ৳500 credited to your accounts.
There's no cap on referrals. If you refer ten friends, you earn ৳5,000 in referral bonuses. The referred friend also benefits — they get their ৳500 on top of the standard welcome bonus, so it's a genuine win for both sides. Referral bonuses are credited within 24 hours of the qualifying deposit being confirmed.
Bonuses are meant to enhance your experience, not to pressure you into depositing more than you're comfortable with. At sis6s, we always recommend setting a personal deposit limit before you start playing — you can do this from your account settings at any time. If you ever feel like your gambling is becoming a problem, our responsible gaming tools are available 24/7, and our support team can help you set up self-exclusion or cooling-off periods.
Bonuses at sis6s are optional. You can always choose to deposit and play without activating a promotion if you prefer to keep things simple. The choice is entirely yours, and there's no pressure either way.
Bonuses should be fun. Set deposit limits and never chase losses. sis6s provides full self-exclusion tools whenever you need them.
Learn MoreAll bonuses are subject to sis6s terms and conditions. Please read the full Terms and Conditions before claiming any promotion.
No hidden conditions. Here's a clear breakdown of the key terms for each sis6s promotion.
| Bonus | Amount | Min. Deposit | Wagering | Validity | Games |
|---|---|---|---|---|---|
| Welcome Bonus | 100% up to ৳5,000 | ৳500 | 10x | 30 days | All games |
| Daily Reload | 20% up to ৳2,000 | ৳300 | 8x | 24 hours | All games |
| Weekly Cashback | Up to 15% of net loss | N/A | 5x | 7 days | All games |
| Refer a Friend | ৳500 per referral | ৳500 (referee) | 6x | 30 days | All games |
| App Exclusive | +10% on deposit | ৳300 | 8x | 24 hours | All games |
| Sports Reload | 25% up to ৳3,000 | ৳500 | 7x | 48 hours | Sports only |
Full terms and conditions apply. Visit the Terms and Conditions page for complete details.
Claiming your bonus at sis6s takes less than two minutes. Here's exactly how it works.
New players register in under two minutes. Existing players just log in. Your bonus eligibility is checked automatically based on your account status.
After logging in, go to your account dashboard and open the Promotions tab. All available bonuses for your account will be listed there with one-click activation.
Deposit via bKash, Nagad, Rocket, or bank transfer. Make sure your deposit meets the minimum amount for the bonus you want to claim. The bonus is credited instantly.
Place bets across your chosen games until you've met the wagering requirement. Track your progress in real time from the bonus dashboard inside your sis6s account.
Once wagering is complete, your bonus converts to real cash and is available for withdrawal. Request a payout via bKash or Nagad and receive it within minutes.
Common questions from sis6s players about our promotions and how they work.
Register now and double your first deposit with the sis6s welcome bonus. Takes less than two minutes to get started.