From the Welcome Bonus to weekly cashback, Eid specials to tournament prizes — Onyx Bat, there's something for every player. Claim your offer before it expires.
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An exclusive offer for new members. Make your first deposit and get a matching bonus of up to ৳10,000.
Every Monday, 15% of your previous week's net losses is credited back to your balance. Minimum qualifying loss: ৳500.
Get 50 free spins on any selected slots game. Spins will be credited automatically the day after your deposit.
Place a bet of ৳500 or more on any IPL 2026 match and get 20% of your stake back as a bonus.
Score the highest on selected slots games throughout June. The top 100 players win prizes.
Onyx Bat Download the app, make your first deposit, and get ৳300 bonus credited automatically.
Top Players Leaderboard — Updated Daily
| Rank | Players | City | Points | Prizes |
|---|---|---|---|---|
1 |
R***ul | Dhaka | 48,240 | ৳1,00,000 |
2 |
S***na | Chattogram | 41,880 | ৳50,000 |
3 |
K***im | Sylhet | 37,550 | ৳25,000 |
4 |
N***a | Rajshahi | 32,100 | ৳10,000 |
5 |
T***ir | Khulna | 29,870 | ৳8,000 |
6 |
F***a | Barishal | 26,440 | ৳6,000 |
Player identities are partially masked to protect privacy. The leaderboard is updated daily at midnight.
Most offers are automatic — no promo code needed
Your Onyx Bat Log in to your account. New here? Register in just 2 minutes.
Read each offer's terms carefully — minimum deposit, wagering requirements, and expiry date.
Deposit the required amount via Mobile Pay, Nagad, or Rocket. Most bonuses are credited automatically.
Check "Bonus Balance" in the Wallet section. If it's not showing, contact us via live chat.
Once the wagering requirement is met, bonus funds convert to your main balance and can be withdrawn.
Know these before claiming any offer
Wagering must be completed within the specified time after claiming the bonus — if the deadline passes, the bonus will be forfeited.
The same person or device cannot claim the same offer more than once.
Withdrawing while a bonus is active may result in the bonus being forfeited — unless the terms explicitly state otherwise.
Not all games contribute equally to wagering — slots count 100%, Live Casino 10%, and Sports Betting 20%.
Onyx Bat reserves the right to modify or cancel any promotion at any time.
Bonuses on online betting platforms get a lot of people excited — until they dig into the fine print and realize the conditions are more complicated than expected. Onyx Bat's promotions are well-regarded by experienced players — the offers are attractive and the terms are relatively transparent. Wagering requirements, expiry dates, and eligibility conditions are clearly listed alongside each promotion.
A quick note on the welcome bonus. New members get a 100% bonus on their first deposit — so if you deposit ৳5,000, you get another ৳5,000 in bonus funds, up to a maximum of ৳10,000. The wagering requirement is ×15, meaning you need to bet 15 times the bonus amount. It may sound like a lot, but it's actually mid-range compared to the market — some platforms require ×30 or more.
The Weekly Cashback offer is most valuable for regular players. Every Monday, you get back 15% of your net losses from the previous week — and with just ×1 wagering, you only need to place one bet before you can withdraw. As one regular user from Dhaka put it, "Even when the week doesn't go well, getting a little back on Monday really helps — it makes a difference mentally."
Monthly Tournaments Onyx Bat's most talked-about offer. It's not just about the money — a lot of players love the thrill of the competition itself. Seeing your name on the leaderboard is a feeling of its own. Especially during Eid and Puja season Onyx Bat runs special festival promotions with larger prize pools and easier participation requirements.
During major events like IPL or the Cricket World Cup Onyx Batcomes with exclusive Sports Betting bonuses. These event-based offers are usually short-lived but highly rewarding. If you bet on cricket regularly, it's worth checking this page from time to time — or Onyx Bat Keep push notifications enabled in the app.
Free spins are worth talking about too. For slots fans, they're a great perk — you're not spending any of your own money, but any winnings go straight to your bonus balance. Once you meet the wagering requirement, you can withdraw them. Keep in mind that free spins don't apply to every slot game — the eligible titles are listed on the Promotions page.
One final tip — before a bonus gets you excited, read the terms first. Onyx Batthe terms are never buried in fine print — they're written in plain, clear language. Read them before you claim, and you're far less likely to be disappointed.
Answers to the Most Frequently Asked Questions
New promotions every week Onyx Bat. Register now and kick things off with a 100% bonus on your very first deposit.