Join Online138 today and enjoy the most rewarding welcome bonus package in Malaysia. Your bonus is credited automatically after your first deposit — no promo codes needed, no confusing hidden terms.
Register before the timer runs out to lock in the highest bonus rate. This offer is refreshed every week.
Three bonus packages designed to suit players at every level — whether you're just starting out or already experienced.
Ideal for new players who want to start their casino journey with a small stake but still enjoy solid bonus value.
The most popular choice among new Online138 members. High bonus value with a reasonable rollover requirement.
The highest-tier bonus package at Online138, designed specifically for serious players who want to maximise the value of every deposit.
The bonus claim process is fully automatic — no forms to fill in, no need to contact customer support. Just follow these simple steps.
Click the "Register" button, fill in your full name, Malaysian phone number, and password. Done in under 2 minutes.
During registration or before your first deposit, select the welcome bonus package that best suits your needs.
Deposit via Touch 'n Go, DuitNow, GrabPay, Boost, or FPX. Funds arrive within 30 seconds and your bonus is credited automatically.
Use your bonus to play slots, baccarat, sports, or any of your favourite games at Online138.
The Online138 welcome bonus can be used not just for casino games, but also for Sports Betting — including Malaysia Super League football, EPL, Champions League, and badminton. This makes our offer one of the most flexible available in Malaysia.
On top of that, new members who choose the Standard or VIP package also receive an automatic 3% sports rebate on all sports bets placed. The rebate is credited directly to your account every week — no claim required.
Register & Try Now| Bonus Features | Starter | Standard ⭐ | VIP Exclusive |
|---|---|---|---|
| Minimum Deposit | RM 20 | RM 50 | RM 200 |
| Bonus Rate | 50% | 100% | 100% |
| Maximum Bonus | RM 100 | RM 300 | RM 500 |
| Slots & Casino | ✓ | ✓ | ✓ |
| Sports Betting | – | ✓ | ✓ |
| Sports Rebate | – | 3% | 3% |
| Casino Rebate | – | – | 5% |
| VIP Table Access | – | – | ✓ |
| Personal Manager | – | – | ✓ |
| Rollover | 10x | 12x | 15x |
| Validity Period | 14 days | 21 days | 30 days |
* Terms and conditions apply. Please refer to our Terms & Conditions for full details.
One thing that sets Online138 apart from other platforms is our commitment to rewarding members beyond just their registration day — every single day. After the welcome bonus, you'll continue to enjoy a range of exciting promotions refreshed every week.
From daily reload bonuses and weekly cashback to sports rebate rewards, birthday bonuses, and a VIP programme that elevates you to higher tiers with increasingly exclusive perks — Online138 makes sure every ringgit you put in delivers real returns.
View All PromotionsFor many players, choosing the right online casino platform can be a confusing process — too many options, too many offers that look attractive on the surface but are packed with hidden conditions when you read the fine print. At Online138, we believe in transparency. Our welcome bonus is designed to deliver real value to new players, not just lure them in with big numbers that are nearly impossible to reach.
The Online138 Standard Bonus package, for instance, offers a 100% match on your first deposit up to RM 300. That means if you deposit RM 100, you receive an additional RM 100 as a bonus — giving you RM 200 in total to play with. The 12x rollover is among the most competitive in the industry, so you won't need to wager dozens of times over before you can withdraw your winnings.
To put the rollover concept in simple terms — if you receive a RM 100 bonus with a 12x rollover, you need to place a total of RM 1,200 in bets before the bonus can be converted to withdrawable cash. This does not mean you need to win RM 1,200 — rather, the total value of all bets placed (wins and losses combined) counts toward the rollover requirement.
One of the standout advantages of the Online138 bonus — rarely offered by other platforms — is its flexibility. Unlike some platforms that restrict bonuses to slots only, the Standard and VIP package bonuses at Online138 can be used across all game categories, including live baccarat, roulette, dragon tiger, Malaysia Super League football betting, EPL, badminton, and e-sports such as Mobile Legends.
Depositing at Online138 is one of the fastest and most hassle-free experiences in Malaysia. We support all major local payment methods — Touch 'n Go eWallet, GrabPay, Boost, ShopeePay, DuitNow, and FPX internet banking via Maybank2u and CIMB Clicks. Funds are credited to your gaming account within 30 seconds, and your bonus appears automatically — no need to contact anyone.
Another question new players often ask is — what happens if I don't meet the rollover requirement before the bonus period expires? At Online138, if the bonus period ends before the rollover is completed, the remaining bonus balance (not your original cash) will be deducted from your account. The cash you deposited yourself is never affected under any circumstances — it always belongs to you.
For players who prefer to ease in and try the platform before committing to a larger amount, the Starter Package with a minimum deposit of just RM 20 is the perfect choice. Put in as little as RM 20 to experience Online138 for yourself, and you'll receive a 50% bonus on top — usable across all slots and casino games.
Finally, Online138 wants to remind all players that bonuses and promotions are here to enhance your enjoyment — not to be a source of stress. We encourage all members to play within their means and make use of the Responsible Gaming tools we provide, including daily deposit limits, loss limits, and self-exclusion options. Your well-being is our priority at Online138.
Done in 2 minutes. Enter an active Malaysian phone number for verification.
Choose Starter, Standard, or VIP based on the deposit amount you plan to make.
Deposit via TNG, DuitNow, or FPX. Bonus is credited automatically in seconds.
Use your bonus to play your favourite games. Every bet counts toward the rollover.
Once the rollover is met, withdraw your winnings to your Malaysian bank account or eWallet.
No manual claim required. The bonus is credited to your account instantly once your first deposit is confirmed.
Use your bonus on slots, baccarat, roulette, dragon tiger, or Sports Betting — the choice is yours.
Rollover requirements and validity periods are stated upfront. No surprises after you sign up.
The cash you deposit is never affected by bonus terms under any circumstances.
Sign up, deposit, and claim your bonus — all directly from your Android or iOS smartphone.
Touch 'n Go, DuitNow, GrabPay, Boost, ShopeePay, Maybank2u, CIMB Clicks & FPX accepted.
Our support team is available 24 hours a day via LiveChat to assist with any bonus-related enquiries.
Once your welcome bonus is used, more promotions await — daily reloads, cashback & VIP rewards.
Slots are the best way to make the most of your welcome bonus, as every spin counts fully toward the rollover requirement. With over 300 slot titles available at Online138 — including progressive jackpot slots worth millions of Ringgit — you have endless options to find the games you enjoy most.
Slots from leading providers such as Pragmatic Play, Microgaming, NetEnt, and Playtech are all available, each offering high RTPs and a wide range of themes — from lucky Asian themes to adventure and mystery slots. Free spins and in-game bonus features do not count towards the rollover, meaning every win from those features is entirely yours to keep.
Try Slots NowOnline138 takes the privacy and security of every member seriously throughout the bonus claim process. All personal information, bank account details, and transaction records are protected by 256-bit SSL encryption and will never be shared with any third party without your consent. Deposits and bonus payouts are processed through secure, licensed channels. For more details on how we handle your data, please read Privacy Policy full terms.
Register free today, deposit a minimum of RM 20, and receive up to RM 500 credited automatically. Hundreds of thousands of Malaysian players are already enjoying it — now it's your turn.