We believe every Bangladeshi gamer deserves a safe, transparent, and enjoyable gaming experience. 399b honours that commitment — every day, every game.
399b is one of Bangladesh's most recognized online gaming and betting platforms. Since launching in 2020, 399b has steadily earned the trust of millions of Bangladeshi users. Slots, live sports betting, bingo, casino — everything is available in one place.
While most of our competitors attract users purely through bonus offers, 399b has taken a completely different path. We believe that if a user can navigate the platform with ease, deposit and withdraw funds securely, and get help in Bangla whenever they need it — they will stay with us for the long term. That belief is what 399b was built on.
Every transaction on our platform is secured with SSL encryption. Using familiar payment methods like bKash, Nagad, and Rocket, deposits and withdrawals take just minutes — no complicated processes required.
The core philosophy at 399b is — "Play for fun, play safe." We believe gaming should be a form of entertainment, not a source of stress or anxiety. That's why we place the highest importance on responsible gaming and give every member the ability to set limits and take voluntary breaks.
Our team works every day toward a single goal — making 399b the most trusted and user-friendly gaming platform in Bangladesh. Every update, every new feature, every bonus offer is driven by the feedback and needs of our users.
399b was built from the ground up with the Bangladesh market in mind. The interface is in Bangla, payment methods are local, and support is available in Bangla — every detail is tailored for Bangladeshi users. From special sports offers during cricket season to bonus deposits on Eid, 399b always keeps pace with the local context.
Our mobile app is available on both Android and iOS. It is lightweight, fast, and runs well even on low data — designed with Bangladesh's network conditions in mind.
399b believes in responsible gaming. We give our users the option to set voluntary limits. To learn more, Responsible Play Visit the page.
Every feature is built with Bangladeshi gamers in mind
Every transaction and piece of personal data on 399b is protected by SSL encryption. The security of your account and funds is our top priority.
Deposit in just minutes using bKash, Nagad, or Rocket. VIP members receive withdrawals in as little as 15 minutes — one of the fastest payouts in Bangladesh.
Bangla support available 24/7 for any issue. Reach us via Live Chat, WhatsApp, or a dedicated manager for VIP members.
The 399b Android and iOS apps are lightweight and fast. They run smoothly even on low data — built with Bangladesh's mobile network conditions in mind.
A 5-tier VIP system — Bronze to Diamond. Earn points on every bet, plus cashback, free spins, and a special birthday gift.
399b is committed to responsible gaming. Voluntary limit-setting, taking breaks, and access to support are always available.
A dedicated and experienced team works every day to make your experience even better
Over 500,000 Bangladeshi gamers have already chosen 399b. Register now, claim a special bonus on your first deposit, and welcome to the trusted world of 399b.