Since 2020, ok big has earned the trust of millions of Bangladeshi players. Secure payments, transparent gameplay, and fast payouts are what set us apart.
Bangladesh's largest gaming community — born from one simple dream
In early 2020, as more and more Bangladeshis turned to online gaming platforms, one problem kept coming up — most platforms were foreign-operated, with no Bengali-language support, complicated payment processes, and endless waiting just to withdraw winnings. Ok big was built to solve exactly these problems.
Our founding team was a small but determined group of Bangladeshi tech and gaming experts with one clear goal — to build a platform truly made for Bangladeshi users, not just a copy-paste job. Bengali-language support, bKash and Nagad payments, and a focus on local sports — these three things ok bighad set apart from day one.
Trusting a platform with your money online is a serious matter. Ok big This has always been taken seriously. Every game outcome on our platform is determined by an internationally recognized RNG (Random Number Generator) system. No manipulation, no bias.
We partner with the world's leading game providers — including Pragmatic Play, Evolution Gaming, NetEnt, and Ezugi — all of which operate under the strict standards of international gaming commissions, which means ok bigPlaying here means playing to international standards.
Our platform is built with Bangladesh's internet realities in mind. Connectivity can be slow in many parts of the country — so ok big's app and website run smoothly even on low bandwidth. The mobile-first design means the full experience fits right in the palm of your hand, no matter how small the screen.
Ok big Constantly evolving. Over the past three years, we've rolled out 5 major platform updates, grown our game library from 100 to over 1,200 titles, and made our payment system fast enough to process withdrawals in an average of just 5 minutes.
Gaming is meant to be fun — that's our founding principle. So ok bigoffers several responsible gaming tools: daily/weekly deposit limits, a self-exclusion option, and access to professional support resources. We want you to enjoy the experience sustainably over the long term — not just win once, but keep coming back.
Six reasons that make us the best in Bangladesh
256-bit SSL encryption, two-factor authentication, and international-grade cybersecurity. Your funds and personal data are always protected.
Deposit and withdraw via bKash, Nagad, Rocket, and all major banks — fast, simple, and hassle-free.
1,200+ games — slots, Live Casino, Sports Betting, crash games, and more. New titles added every week.
24/7 live chat, phone, and email support in Bengali. Get help in your own language whenever you need it — no language barrier, ever.
Welcome bonus, cashback, free spins, referral bonus, and VIP rewards — there's always something on offer for regular players.
Winnings are credited to your wallet instantly. Withdrawal requests are processed in an average of 5 minutes — 24/7, every day of the week.
Ok big is more than a platform — it's a promise
To bring world-class gaming to every corner of Bangladesh — no language barriers, no technical complexity, just fun and opportunity.
To establish ourselves as South Asia's most trusted and user-friendly gaming platform by 2026. ok big's name is synonymous with trust.
From three core values — transparency, speed, and responsibility — ok big Never wavered — and never will.
Operating to international standards — your trust is in safe hands
From 2020 to today — every milestone marks a new commitment
Started with a small team. Launched the first 100 games and the bKash payment system. Reached 10,000 registered members within the first 3 months.
Partnerships with Evolution Gaming and Pragmatic Play. Live betting on cricket and football now available. Membership has surpassed 100,000.
Launched Android and iOS apps. Enhanced VIP and rewards system. Added Nagad payment. Game library surpassed 500 titles.
Progressive jackpot and online lottery systems are now live. The weekly mega jackpot pool has surpassed BDT 1 crore.
1,200+ games, 500,000+ members, active across all 64 districts. Ok big Now a leading name in Bangladesh's online gaming market.
A team of skilled, dedicated professionals — always working for you
Entrepreneur with 10+ years of experience in digital payments and fintech.
Former engineer at Google and Samsung, specializing in mobile platforms.
8 years of experience in international gaming partnerships and quality assurance.
Manages a support team of 50+, fluent in both Bengali and English.
Over 500,000 Bangladeshis have already chosen ok big. What are you waiting for? Registration is free, and you get a 100% bonus on your first deposit.
Straight Answers to Two Important Questions