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RTP (Return to Player) is the theoretical rate at which a game returns a percentage of total bets to players over the long term. For example, if a game has an RTP of 96%, it means that on average ৳96 is returned to players for every ৳100 wagered. This is not a guarantee — it is a statistical average calculated over millions of rounds.

The RTP range varies by game type. Slot games typically have an RTP between 92% and 98%. Strategy games like blackjack can get close to around 99% RTP — if you know the correct basic strategy. Roulette generally has an RTP between 94% and 97%, slightly higher in the European variant.

House Edge is the flip side of RTP — the portion of total bets that stays with the casino over time. If the RTP is 96%, the house edge is 4%. This is part of the casino's business model. Choosing games with a lower house edge can be a smart approach.

Why is it important to understand RTP and house edge before playing? Because it helps you set realistic expectations. A higher RTP means a greater chance of playing longer, though a big win is not guaranteed. Low-volatility games offer frequent small wins, while high-volatility games may pay out less often but in larger amounts. Being an informed player is the best approach.

Set a budget: Before you start playing, decide the maximum amount you can afford to spend. This amount should only be money you can afford to lose — never use funds set aside for rent, food or essential expenses under any circumstances.

Divide into sessions: Split your total budget into smaller session portions. It is wise not to allocate more than 10–20% of your total budget per session. This way a bad session cannot wipe out your entire budget.

Follow the 1–5% rule: Keep each bet between 1% and a maximum of 5% of your total session balance. This rule helps maintain your balance over the long term and reduces the impact of a large loss.

Set limits after winning: After a good session, have the discipline to stop playing once you reach your set win target. Avoid the tendency to bet everything while on a winning streak — this can lead to losses over the long term.

Stop after losing: If you lose 50% of your session budget, stop playing for the day. Trying to "chase losses" carries the risk of losing even more. Keep a regular record of your playing history — it will help you understand your own patterns.

Why is KYC required? The account verification or KYC (Know Your Customer) process ensures the security of your account and reduces the risk of identity theft or fraud. It is a standard of international financial security.

Documents typically required:

•   National ID card (NID) — clear photos of both sides
•   Proof of address — electricity bill, bank statement, or government document
•   Selfie verification — a clear selfie holding your NID

How long the verification process takes depends on the quality and completeness of your documents — it is generally completed quickly. After verification, you will enjoy unlimited withdrawals, your account will be fully secured, and you will be considered for VIP benefits. Submitting clear and legible documents speeds up the process.

sis66 was born with a simple goal — to create an online casino and betting experience for players in Bangladesh that speaks their language, supports their payment methods, and is familiar with their culture. From Dhaka to Chittagong, our core promise is that players from every corner of the country can play with ease.

We believe safe play is the best play. SSL encryption, a Fair Play guarantee, and transparent bonus terms and conditions — these are three things we never compromise on. In every transaction, every game, and every support session, we strive to remain worthy of your trust.

Through partnerships with the world's leading game providers, our team continuously adds new games, new features, and an improved experience. Share any questions or suggestions directly with our support team — we are always ready to listen.