3k666 Online Casino — 120% Bonus on First Deposit, Rewards up to ৳8,000 for New Members
Welcome to Bangladesh's trusted online casino and betting platform. Cricket betting, live casino, slots, and fishing games — all under one roof. Deposit from just ৳200 via bKash, Nagad, and Rocket and start playing.
Steps to Get Started — Joining 3k666 is easy
Every step from opening an account at 3k666 to claiming your first bonus is outlined below. The whole process takes just a few minutes.
Create an account
Go to the 3k666 login page and create a new account using your mobile number and password. The entire process can be completed in Bengali.
Complete verification
Submit your national ID or passport details to verify your identity. This keeps your account secure.
Make your first deposit
Deposit from just ৳200 via bKash, Nagad, or Rocket. Bank transfer is also supported (including Dutch-Bangla, BRAC Bank, and Islami Bank).
Claim your welcome bonus
A 120% bonus is automatically added to your first deposit, up to a maximum of ৳8,000. Example: deposit ৳1,000 and get ৳1,200 in bonus, for a total balance of ৳2,200.
Place your first game or bet
Cricket betting, live casino, or slots — go to your preferred section and place your first bet or start playing.
Withdraw your winnings
Withdraw from a minimum of ৳1,000. Funds typically arrive in your bKash or Nagad within 10 to 45 minutes.
Cricket Betting Markets — What each bet means
The following markets are the most popular for BPL, IPL, T20 World Cup, and ICC tournaments. A simple example is provided for each market.
Match Winner
Bet on which team will win the match. Example: choose Bangladesh in a Bangladesh vs India match.
Toss Winner
Bet on which team wins the toss. This is a straightforward, entirely luck-based market.
Top Batsman
Bet on who will be the highest run-scorer for a team.
Total Runs Over/Under
Bet on whether the total runs in an innings will exceed a set number — for example, whether runs will go above 165.
Runs in an Over
Bet on how many runs will be scored in a specific over. An exciting in-play market.
Method of Dismissal
Bet on how the next wicket will fall — bowled, caught, or run out. A market favoured by experienced bettors.
Player of the Match
Bet on which player will be the best performer at the end of the match.
Live In-Play Odds — Change with every wicket and over
In live betting, odds update after every ball. If the batting side loses wickets quickly, their odds of winning shorten and the bowling side's odds lengthen. Likewise, when a large number of runs are needed in the final overs, the gap in odds widens. In-play betting is a game of quick decisions — you must place your bet before the market closes.
For Bangladesh Tigers supporters
The passion for cricket felt from Dhaka to every corner of the country is fully reflected in 3k666's cricket betting section. During the BPL season, there are opportunities to bet across various markets on domestic teams, the excitement of the IPL, and every Bangladesh match in the T20 World Cup. No specific odds or fixed outcomes are offered — in the live market, the situation changes with every ball.
View cricket betting
Live Casino Tables
Play directly with trained dealers in 3k666's live casino section. High-definition streaming, Bengali chat support, and a comfortable playing environment make it stand out.
Live Baccarat
Banker or Player — whichever hand is closest to 9 wins. Simple rules, fast results.
Live Roulette
Both European and American variants are available. Bet on where the ball lands on a spinning wheel.
Live Blackjack
Score higher than the dealer without going over 21. Skill counts in this strategy-based game.
Live Andar Bahar
A popular card game from South Asia. Choose which side a card lands on — Andar or Bahar.
Game Show Wheels
Large spinning wheel games like Dream Catcher and Money Wheel. Simple rules and big multipliers.
Live Sic Bo
This Asian classic uses three dice and offers a variety of betting options. A thrilling mix of luck and numbers.
Types of Slot Games
3k666's slots section features a range of game types. Read this short guide to find the type that suits you.
Classic Slots
Simple 3-reel format with fruit, bar, and seven symbols. An ideal starting point for beginners. NetEnt's retro-style games are an example of this category.
Video Slots
5 reels, multiple paylines, and rich graphics. Pragmatic Play's Gates of Olympus is a well-known title in this category.
Progressive Jackpot Slots
A portion of every bet goes into a large prize pool. Microgaming is known for this type of game.
Megaways Slots
The number of symbols on each reel changes with every spin, creating thousands of ways to win. Uses BTG's mechanics.
Cascading Reels
Winning symbols disappear and new ones fall in, which can deliver multiple wins from a single spin. Pragmatic Play's Sweet Bonanza is a familiar example.
Cluster Pays
Instead of paylines, wins are formed by clusters of matching symbols. PG Soft's Mahjong Ways is a good example of this mechanic.
Fast Deposits via bKash and Nagad
All major mobile wallets in Bangladesh are supported. Start from just ৳200 and add funds to your account instantly.
bKash
Ideal for those who prefer quick mobile payments.
Log in to your account and select "Deposit"
Enter your bKash number and amount (minimum ৳200)
Confirm with your bKash PIN — funds are added instantly
Nagad
The postal department's digital wallet — widely used across the country.
Go to the cashier page and select Nagad
Enter your Nagad number and deposit amount
Approve the request in the Nagad app — done!
Rocket
Dutch-Bangla Bank's mobile banking service — reliable and secure.
Select the Rocket option on the payment page
Enter your number and amount, then submit
Your balance is added after the Rocket confirmation message
Bank Transfer
For larger transactions — major banks supported including BRAC, Islami, and Dutch-Bangla.
Select Bank Transfer and collect the account details
Send to the specified account via your banking app or branch
Send the receipt with the reference number to support
Withdrawals are generally processed within 10–45 minutes. Minimum withdrawal is ৳1,000.
Betting Exchange — Back vs Lay
On a standard sportsbook, you always bet in favour of a particular outcome. On a betting exchange, you bet directly against other players — not through a bookmaker. Here are the two key concepts:
Back bet: You bet that a team or player will win. This works the same as standard betting.
Lay bet: You bet that a team or player will lose. On an exchange, doing this puts you in the role of the bookmaker.
An example (in ৳): Say you Back Bangladesh with ৳500. If the odds are 2.5 and Bangladesh wins, you receive ৳750 in profit. On the other hand, if someone Lays Bangladesh and Bangladesh loses, that person wins.
Exchange odds are formed by the supply and demand of players, not set by a bookmaker. The platform takes a small commission from each winning bet.
| Feature | Exchange (Back/Lay) | Standard Sportsbook |
|---|---|---|
| Odds setting | Other players | Bookmaker |
| Lay bet option | Available | Not available |
| Commission | Small % on winnings | Margin added to odds |
| Liquidity | Depends on market depth | Always available |
Play on mobile — no app needed
3k666 is fully browser-based. Play directly in Chrome or Safari on any Android or iPhone. Low data usage, fast loading, and instant deposits via bKash or Nagad. Follow live cricket matches in real time, right on your mobile.
Add a shortcut to your home screen
Open 3k666.lat in Chrome or Safari on your phone
Tap the browser menu or share button
Select "Add to Home Screen" — after that it opens directly like an app
Tips for smooth mobile gaming
- Use Wi-Fi or a strong 4G connection
- Always keep your browser up to date
- Log out after playing on a shared phone
- Do not install any betting app shared via Telegram or Facebook — these may be fraudulent
Join now and get up to ৳8,000
welcome bonus
120% bonus on your first deposit. Starting from just ৳200 via bKash, Nagad or Rocket.
For players aged 21 and above only.
Why players choose us
Fast withdrawals
After a win, funds typically reach your mobile wallet within just 10–45 minutes.
SSL protection
Your data and money are secured with a fully encrypted connection. Fair play is guaranteed.
24/7 Bengali Support
Get help in Bengali via live chat or email, any time of day or night, for any issue.
VIP rewards
5 VIP levels from Bronze to Diamond. Weekly cashback, special offers and priority support.
Local payments
bKash, Nagad, Rocket and bank transfer — all major payment methods in Bangladesh are supported.
Mobile-first design
Full experience on a smartphone without an app. Works fast and smoothly in any browser.
Generous bonus structure
Not just a welcome bonus — earn regular rewards through VIP cashback and promotional offers.
Diverse games
Slots, live casino, cricket betting, fishing games — all kinds of entertainment on one platform.
Trusted game providers
3k666 works in partnership with the world's leading game developers. Every game guarantees fair play and high-quality graphics.
Responsible gaming tools
3k666 believes healthy entertainment is the best entertainment. We are committed to ensuring a safe environment for every player. The tools below are always available to you, under your control.
Deposit limit
You can set your own maximum deposit amount — daily, weekly or monthly. That limit cannot be exceeded.
Loss limit
Set how much you are comfortable losing within a given period. Once the limit is reached, bets are stopped automatically.
Session time limit
Set a maximum duration for each gaming session. When the set time is up, you will be required to take a break.
Reality check reminder
At regular intervals, a summary is shown of how long the account has been active and how much has been lost or won.
Self-exclusion
If you feel your play is getting out of control, you can close your account yourself for 30 days, 6 months, or permanently.
Self-assessment quiz
Use our self-assessment questionnaire to check whether your gaming habits are healthy.
21+ age limit strictly applies
3k666 is for players aged 21 and above only. This platform is completely prohibited for minors. If age cannot be verified, the account will be closed.
If you feel that gambling is having a negative impact on your life or the life of someone you know, contact our support team directly — via live chat or email at [email protected]. Seeking help is a sign of courage.
Read our responsible gaming policy page to learn more.
Explore the 3k666 site
Here is a brief introduction to what you will find in each section.
Mega Fishing
Catch big fish in JILI's Mega Fishing game and win big prizes. Play in both team and solo modes.
See moreRelax Fishing
Enjoy the fun of fishing games in a relaxed setting. Use different weapons and strategies to catch all kinds of fish.
See moreCricket
Live betting and pre-match markets for BPL, IPL and the T20 World Cup. Every Bangladesh Tigers match covered.
See moreSlots
Hundreds of slot games — from classic to Megaways. PG Soft, Pragmatic Play and many more providers.
See more3k666 Casino
Live casino, table games and game shows. Live dealers from top providers including Evolution and Ezugi.
See moreLegal notice — for users in Bangladesh
3k666 is an online gaming platform. It does not claim approval from any specific licence or regulatory body. The platform operates safely and reliably on the basis of SSL encryption and fair play policies.
Bangladesh's Public Gambling Act, 1867 is an old law that makes no clear provision regarding online betting. The law was primarily enacted for physical gambling houses, so the legal position on online gaming is not yet fully clear and remains open to various interpretations.
Each user is responsible for making decisions based on their own legal situation. Compliance with local law is the user's own responsibility.
This platform is for players aged 21 and above only. Creating or using an account by minors is strictly prohibited.
To learn more about responsible gaming and to set self-exclusion or limits, visit our responsible gaming page.
3k666 VIP program
3k666 has a dedicated VIP structure for regular players. The more you play, the higher the level you reach and the more benefits you receive.
Up to 0.2% weekly cashback. A great way to get started — stay active and move up the levels.
Up to 0.3% weekly cashback. Faster withdrawals and priority support.
Up to 0.5% weekly cashback. Special promotions and dedicated support.
Up to 0.6% weekly cashback. Exclusive offers and a personal account manager.
Up to 0.8% weekly cashback. Highest priority, exclusive events and maximum benefits.