Understanding 4D Selection and Drawing Mechanics
The 4D Number Game at gaco88 works around four-digit combinations ranging from 0000 to 9999. You select one or more of these combinations before each drawing. Our system accepts selections from many players simultaneously, and at the scheduled draw time, one winning combination is announced. If your selection matches the winning number, your stake is multiplied and credited to your balance. If your selection does not match, your stake is retained by the house.
Drawings occur at fixed intervals throughout the day—typically morning, afternoon, and evening slots—so you can plan your selections around your schedule. Each draw is independent; results from one drawing do not influence the next. Our 4D draws use certified randomisation methods, and results are published in real time on your account dashboard and via email confirmation.
Selection types vary at gaco88. You can bet on the exact four-digit match (the full combination must win), or select partial combinations that win if certain digits match in certain positions. Partial bets carry lower multipliers but higher odds of matching, reflecting the reduced difficulty. The multiplier table is displayed before you confirm your selection, so you always know your potential return.
Welcome Bonus and First-Deposit Offers
New members at gaco88 receive a welcome offer when they complete account registration, pass identity verification, and make their first qualifying deposit. The welcome offer is calculated as a percentage of your deposit, subject to a maximum limit. We do not advertise fixed bonus amounts in advance; the exact percentage and cap are displayed at the point of claim based on current promotions.
Your 4D Number Game play counts fully toward the bonus turnover requirement. Each stake and each drawing result contribute to fulfilling the playthrough condition. Once you complete the turnover, your bonus balance converts to withdrawable cash—no additional restrictions apply beyond standard account verification (which is already required before your first withdrawal).
The welcome offer is available once per account. Additional deposits after your first do not generate new welcome bonuses but do qualify your play for our weekly cashback program, which we describe below.
Weekly Cashback and Tier-Based Rates
Every member at gaco88 participates in our weekly cashback scheme automatically. Each week (Monday through Sunday), we calculate your net loss across all game categories, including 4D play. Net loss is the difference between your total deposits and total winnings that week. If your net loss is positive (you spent more than you won), we credit a cashback percentage back to your account wallet.
Cashback is credited automatically every Monday morning—no claim process is needed. Your account dashboard shows your weekly loss total and the cashback amount applied. Cashback rates vary by tier. Higher tiers unlock better percentages, incentivising consistent play and tier progression.
Cashback funds are fully withdrawable without additional turnover or conditions. You can withdraw them immediately or reinvest them in additional 4D selections or any other gaco88 game category.
On gaco88, your 4D Number Game losses integrate seamlessly with casino tables, slots, sportsbook activity, and arcade games into a single weekly calculation—simplifying how you track and claim your cashback reward.
Referral Program and Tier Advancement
Our referral program at gaco88 rewards you for inviting friends to join. When you share your unique referral code and a friend registers and makes their first qualifying deposit, both of you receive a referral bonus. Your bonus is separate from theirs—you earn a commission, and they receive their own welcome offer.
Referral commissions scale with your tier status. As your cumulative play volume increases and you advance to higher tiers, your referral commission percentage improves. This means the more you engage with gaco88 games (including 4D), the more valuable each referral becomes. Your referral earnings accumulate in a separate balance, withdrawable via any supported payment method without turnover requirements.
Tier progression is automatic and transparent. Your account dashboard displays your current tier, play-volume points, and progress toward the next unlock. Tiers reset annually, ensuring fresh opportunities for all members each year. Higher tiers also unlock improved weekly cashback rates, faster withdrawal processing, seasonal bonus invitations, and dedicated customer support channels.
Seasonal Promotions Tied to Holidays and Sports Events
Throughout the year, gaco88 features limited-time promotions aligned with major holidays and sporting events. Your 4D Number Game play qualifies fully for all seasonal campaigns. Recent and upcoming promotional windows include:
- Idul Fitri and Idul Adha: Enhanced cashback rates and exclusive tier-bonus calendars available to all members during these major holidays.
- Imlek and Nyepi: Festival-specific bonuses and double-cashback windows for members in participating jurisdictions.
- Piala AFF and Liga 1 tournaments: Themed promotions during football seasons; 4D bonuses coordinate with sports betting and live-table campaigns.
- Piala Indonesia: Special limited-time offers during major domestic football championships.
We announce seasonal campaigns via email, in-app notifications, and your account dashboard. Members automatically qualify for promotions matching their tier level; no separate opt-in or code entry is required. Promotion pages specify eligible games, turnover requirements (if any), and expiration dates.
Payment Methods, Deposits, and Withdrawals
gaco88 supports eight payment channels for deposits and withdrawals, ensuring convenience across Indonesia. We accept DANA, e-wallet, mobile banking, local payment, online payment, and e-wallet (all processed instantly), plus direct bank transfers to mobile banking, local payment, online payment, and e-wallet (typically settled 1–2 business hours during banking hours).
Deposit process: Select your preferred payment method, confirm the amount, and complete authorization through your bank or e-wallet app. Funds appear in your gaco88 wallet instantly. You can then select 4D numbers and place stakes immediately, with no waiting period.
Withdrawal process: Request a withdrawal from your account menu, specify the amount and destination, and submit. Before your first withdrawal, we require identity verification (national ID or passport scan) and bank-account ownership confirmation. Subsequent withdrawals process without re-verifying documents, subject to our standard compliance review. Processing times depend on your receiving bank's clearing schedule—gaco88 approves requests during business hours, but final receipt may take 1–3 business days.
Our support team remains available via live chat and email to clarify payment terms, troubleshoot deposit issues, or expedite account recovery requests.
Account Verification and Compliance
Before your first withdrawal or bonus claim, gaco88 requires you to verify your identity and account ownership. This protects both your account security and our platform integrity. Standard documentation includes a government-issued ID (national ID, passport, or driver's license) and proof of address (utility bill or bank statement).
Verification typically completes within one business day. You can upload documents via your account dashboard at any time, and our compliance team processes them during business hours. Once approved, future withdrawals and bonus claims process without re-verification, speeding up your payment flow.
Our services are available only in jurisdictions where applicable local law permits online gaming. Users are responsible for verifying that their access to gaco88 complies with their own region's regulations. If you have questions about eligibility or legal standing to use our platform, contact our support team for clarification.