From deposit bonuses and weekly cashback to referral rewards and seasonal offers — there's always something to earn at ok big every single day.
Join during this period and earn an extra 15% bonus on every deposit.
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All offers in one place — browse by category
100% match bonus on your first deposit for new members — up to ৳ 5,000.
Every Monday, cashback on last week's net losses is credited automatically — no forms required.
Make your first deposit after registering and receive 30 Free Spins — valid on selected slots games.
For every successful referral, you earn ৳ 500 and your friend receives a ৳ 250 welcome bonus.
Get an extra 20% reload bonus on deposits made Friday and Saturday — up to ৳2,000.
Eid ul-Adha Special: Extra 15% Bonus on Every Deposit — Only 3 Days Left!
The more you play, the faster you'll reach your next reward
Join ok big's referral program — earn ৳500 for every successful referral, and your friend gets a ৳250 welcome bonus.
Know what offers are coming and when — plan ahead
Cashback is credited directly based on your tier, calculated on last week's net losses.
Get a 20% reload bonus on every deposit you make over the weekend.
Join slots and Sports Betting tournaments — prize fund ৳10 lakh+.
A special surprise bonus on your birthday — the higher your level, the bigger the reward.
An extra 15% bonus on every deposit — a special 3-day offer.
Enjoy an extra 5% cashback on cricket betting during the IPL season.
Double welcome bonus plus 50 free spins for new members this New Year.
Log in every day to earn a small bonus or free spins — play 7 days in a row for a bigger reward.
Claim Your Bonus in a Few Easy Steps
Sign up on ok big for free — takes just 30 seconds.
Make a minimum deposit of ৳200 via bKash, Nagad, or card.
Go to the "Rewards" section and claim your preferred offer.
Once you've placed the required wagering amount, the bonus becomes withdrawable.
Withdraw to bKash or Nagad in just 5 minutes.
On online gaming platforms, the word "bonus" often raises eyebrows — is it something you actually get, or just a promise on paper? Ok bigWith - , what you see is what you get. Every week, thousands of Bangladeshi members enjoy cashback, bonuses, and free spins.
For New Members ok big-'s welcome bonus is the most competitive in the Bangladesh market. A 100% match bonus on your first deposit means if you deposit ৳2,000, you start playing with ৳4,000 in total. The maximum bonus goes up to ৳5,000 — deposit ৳5,000 and you'll have ৳10,000 to play with.
The cashback system is designed so members never have to fill out a form or submit a request. Every Monday morning, cashback is automatically credited to your account at a fixed rate based on your net losses over the past seven days. Bronze members receive 5%, Silver 8%, Gold 12%, Platinum 16%, and Diamond members up to 20% cashback.
In addition to the welcome free spins ok big-offers regular daily check-in spins, weekly challenge spins, and extra free spins during special events. Free spin winnings typically come with a 1x wagering requirement, which is very easy to clear.
There's no cap on how many ৳500 referral bonuses you can earn — the more friends you refer, the more you make. No complicated conditions — your bonus is credited instantly as soon as your friend makes their first deposit.
Ok big's bonus wagering requirements are quite reasonable for Bangladesh's competitive market. The Welcome Bonus typically carries a 2x wagering requirement — meaning you only need to bet twice the bonus amount before withdrawing. Cashback and referral bonuses come with no wagering requirements at all.
Your most common questions, answered directly