Get your first betting bonus at 3999d — 120% welcome offer for new members
Enjoy cricket betting, live casino and slot games on the best online platform in Bangladesh. Start with a minimum deposit of ৳500 using bKash, Nagad or Rocket.
120% Bonus for New Members
Open your first account at 3999d, make a deposit, and you will receive a 120% welcome bonus up to ৳8,000. Deposit just ৳500 and start playing your favorite games with your full balance including the bonus.
- 120% bonus on first deposit
- Bonus up to ৳8,000
- Wagering requirement only 20x
- bKash, Nagad, Rocket, Upay supported
Get started in just a few steps
From opening an account at 3999d to your first withdrawal, the entire process is simple and fast.
Create an Account
Open a free account on the 3999d registration page using your name, phone number and password.
Verification
Verify your account with the OTP code sent to your phone number. This keeps your account secure.
First Deposit
Deposit a minimum of ৳500 using bKash, Nagad, Rocket or Upay. The whole process is completed in just a few minutes.
Claim Your Welcome Bonus
Right after your first deposit, a 120% bonus will be added to your account — up to ৳8,000.
First Game or Bet
Choose cricket betting, live casino or your favorite slot game and start playing.
Withdrawal
After winning, withdraw from as little as ৳500. Your money usually arrives in your mobile wallet within 10–45 minutes.
All Game Categories
At 3999d you will find games across many categories — from cricket betting to live casino.
Cricket Betting
SportsPlace live and pre-match bets on all major tournaments including BPL, IPL and the T20 World Cup. Bet on every Bangladesh Tigers match across a range of options.
Slot Games
PopularEnjoy the best slot games from PG Soft, Pragmatic Play and JILI. Hundreds of games including Fortune Tiger, Gates of Olympus and Fortune Gems are waiting for you.
Live Casino
LivePlay live baccarat, roulette and blackjack with real dealers from Evolution Gaming and Ezugi. Get the feel of a real casino from home.
Table Games
ClassicAll classic table games including baccarat, roulette and blackjack are now at your fingertips. Play at a range of limits.
Teen Patti
LocalThe most popular card game of the subcontinent is now online. Multiple variants are available including Teen Patti 20-20 and TeenPatti Joker.
Andar Bahar
FastPlay the traditional South Asian card game Andar Bahar with live dealers. Simple rules and fast rounds make the game even more enjoyable.
Bingo
FunFind various bingo games from JILI including Fortune Bingo and Super Bingo. Easy gameplay and the chance to win big prizes at the same time.
Crash Games
ThrillingGet a thrilling experience in the crash games category including Aviator from Spribe. Cash out at the right moment and multiply your winnings for a big payout.
World-Class Game Providers
At 3999d you will find the best content from the world's leading game providers. Learn about each provider's games so you can easily find your favorites.
Pragmatic Play
This Malta-based provider is world-renowned for slots and live casino games. Their games are extremely popular among players in Bangladesh.
Sweet Bonanza Gates of OlympusPG Soft
Pocket Games Soft is known for Asia-focused themes and innovative gameplay. Their games work brilliantly on mobile.
Mahjong Ways Treasures of AztecJILI
JILI Gaming is a top provider in Southeast Asia for fishing games, slots and bingo. Their games are simple and quick to play.
Fortune Gems Money ComingEvolution Gaming
Evolution Gaming is the world's best in the live casino segment. Their live baccarat, live roulette and game shows deliver an outstanding experience.
Live Baccarat Lightning RouletteSpribe
Spribe, the pioneer of crash games, has taken the world by storm with their Aviator game. Simple mechanics and exciting gameplay combined.
AviatorMicrogaming
As one of the founders of the online gaming industry, Microgaming has been producing quality slots and table games for over a decade.
Mega Moolah Thunderstruck IIOur Features
3999d is built with Bangladeshi players in mind — fast, safe and trustworthy.
Fast Withdrawals
Your money arrives in your bKash, Nagad or Rocket in just 10–45 minutes. No more long waits.
Top Security
Your account and transactions are fully protected with SSL encryption and two-factor verification.
Mobile-Friendly
Play effortlessly on any smartphone or tablet. No need to download a separate app.
Bengali Support
Live chat support in Bengali 24 hours a day, 7 days a week. We are always here for any issue you have.
Local Payments
Deposit and withdraw directly with bKash, Nagad, Rocket and Upay. No hassle.
VIP Rewards
4 VIP tiers from Bronze to Platinum — weekly cashback for regular players.
Diverse Games
Cricket, football and kabaddi through to slots, live casino and crash games — all in one place.
Regular Promos
Special offers for Pohela Boishakh, Eid and Victory Day. Special rewards for regular players.
Play more, earn more cashback
The more you play in the 3999d VIP program, the higher tier you reach and the more weekly cashback you earn.
The starting tier for new members. Play regularly to move up to Silver.
Move up from Bronze and enjoy double the cashback.
The Gold tier for experienced players — enhanced benefits and special offers.
The highest tier — exclusive cashback and a personal account manager.
"3999d — built for players in Bangladesh, and earning their trust is our greatest achievement."
RTP and House Edge Explained
What is RTP?
RTP or "Return to Player" is a percentage that shows how much of the total amount wagered on a game is returned to players over the long term. For example, if a game has an RTP of 96%, in theory an average of ৳96 is returned for every ৳100 wagered. Keep in mind, however, that this is an average across millions of rounds — it does not apply to any single session.
Typical RTP Ranges Across Game Types
RTP varies across game types. In general, slot games have an RTP between 92% and 98%. Strategy-based games like blackjack can reach an RTP of nearly 99% when the correct strategy is followed. Roulette typically has an RTP between 94% and 97%, depending on which variant you are playing.
Fishing games and crash games generally have an RTP between 95% and 97%. In sports betting, the effective payout rate varies depending on the operator's margin.
What is House Edge?
House edge is the counterpart to RTP — it is the mathematical advantage held by the casino or operator. If the RTP is 96%, the house edge is 4%. This means that over the long term, the casino keeps an average of ৳4 from every ৳100 wagered.
Knowing the house edge allows you to make informed choices about which games to play. Games with a lower house edge allow you to play for longer and offer more entertainment value.
Understanding Volatility and RTP Together
A high RTP does not always mean winning frequently. Volatility or variance determines how often and how large prizes are. High-volatility games pay out less frequently but with larger prizes, while low-volatility games offer smaller but more regular payouts. Choosing a game that suits your bankroll and playing style is the smart approach.
Learn Key Terms
Simple explanations of common betting and casino terms for new players.
RTP (Return to Player)
The rate at which a game returns a percentage of the total amount wagered to players over the long term. A higher RTP means a relatively better return for the player.
House Edge (House Edge)
The mathematical advantage held by the casino or operator, which is the counterpart to RTP. A 4% house edge means the casino keeps an average of ৳4 from every ৳100 wagered.
Wager (Wager)
The condition specifying how many times you must bet the bonus amount before it can be withdrawn. A 20x wager means you must bet 20 times the bonus amount.
Stake (Stake)
The amount of money you are placing on a specific bet. It varies by game, from the minimum stake to the maximum stake.
Odds
A way of expressing the probability of an event. In sports betting, higher odds mean a bigger reward, but a lower chance of winning.
Accumulator / Parlay
A method of combining bets from multiple matches together to win a larger reward. If all selections are correct, the total reward multiplies.
Live Bet
The ability to place bets in real time while a match is in progress. You can make quick decisions based on how the match is unfolding.
Cashout
The ability to withdraw your winnings from a bet before the match ends. Used to reduce risk or lock in a guaranteed profit.
Bankroll
The total amount of money set aside specifically for gambling. Proper bankroll management helps you keep playing over the long term.
Volatility
A measure of how frequently and how large a game's rewards are. High volatility means bigger rewards that come less often; low volatility means smaller rewards that come more frequently.
Free Spin
The opportunity to spin for free in a slot game. Usually given as a bonus — you have a chance to win without spending your own money.
Spread
A method used in sports betting to balance bets by setting an effective point difference between two teams. The same concept applies in handicap betting.
Join 3999d today and claim your welcome bonus
Deposit as little as ৳500 from anywhere in Bangladesh, including Dhaka, using bKash, Nagad, or Rocket — for ages 21 and above only.
Start NowAlways here for you
At 3999d, you are never alone. Our Bangla-speaking support team is ready to help you with any issue, 24 hours a day, 7 days a week.
Instant support in Bangla, 24/7
[email protected]
Full support in your native language
Responsible Gaming Tools
3999d believes that gambling should only be a form of entertainment — never a source of problems. We provide a number of tools to protect our players. For ages 21 and above only.
Self-Exclusion
You can choose to exclude yourself from your account for a set period of time or permanently. Contact our support team to use this feature.
Deposit Limits
Set daily, weekly, or monthly deposit limits. This is the most effective way to keep your spending under control.
Loss Limits
Decide in advance the maximum amount you are willing to lose within a given period. Once the limit is reached, your session will stop automatically.
Session Time Limits
Set how long you want to play each day. When the time is up, you will receive a notification and be given the option to stop playing.
Reality Check Reminders
A brief reminder appears at regular intervals to let you know how long you have been playing and how much you have spent.
Self-Assessment Quiz
Use our self-assessment quiz to find out whether your gambling habits are healthy. Answer honestly and stay aware.
If gambling becomes a problem, contact our support team without delay. To learn more, visit our Responsible Gaming page.
Legal Notice
3999d is an online platform. This platform does not claim any specific license or regulatory approval.
Bangladesh's Public Gambling Act was enacted in 1867 — long before online betting was invented. As a result, the application of this law to online gambling remains legally unclear and sits in a legal grey area.
You are personally responsible for complying with your local laws. Please inform yourself about the local laws and regulations related to online gambling.
This platform is for individuals aged 21 and above only. Accounts for minors are prohibited and we enforce age verification strictly.
To learn more about responsible gambling, visit our Responsible Gaming page.