Mining Slot Game · Pragmatic Play
joia99 Drill That Gold — Strike It Rich in Bangladesh's Top Mining Slot
Strap on your hard hat and fire up the drill. Drill That Gold brings an underground gold rush to joia99 players across Dhaka, Chittagong, Sylhet and beyond — with a certified 96.5% RTP and a max win potential of 5,000× your stake.
Game Overview
What Is Drill That Gold?
Drill That Gold is a high-volatility video slot developed by Pragmatic Play, one of the world's most respected iGaming studios. Released to widespread acclaim across Asian markets, the game is set deep underground in a rich gold mine, where players spin the reels and trigger explosive drilling mechanics to reveal hidden payouts beneath the surface. It is one of the standout titles available on joia99 and has quickly become a firm favourite among slot players in Dhaka, Chittagong, and Sylhet.
The game runs on a 5×3 reel grid with 20 fixed paylines. What sets Drill That Gold apart from a standard slot is its Drill Feature — a mechanic that activates when special drill symbols land on the reels, boring downward through the grid to expose hidden multiplier values and bonus symbols that would otherwise remain buried. The effect is both visually satisfying and genuinely rewarding, making each spin feel like a small excavation event.
At joia99, Drill That Gold is playable directly in your browser with no download required. The game is fully optimised for Android and iOS devices, which means players on a 4G connection anywhere in Bangladesh — from Mirpur in Dhaka to Agrabad in Chittagong — can enjoy smooth, uninterrupted gameplay. Minimum bet starts at ৳10 per spin, making it accessible to casual players and high rollers alike.
- Instant deposits via bKash, Nagad and Rocket
- No app download — plays in any mobile browser
- Low minimum bet suits any session budget
- Certified RNG — fair and transparent outcomes
- 24/7 Bengali-friendly customer support at joia99
How It Works
Game Mechanics and Paylines
Understanding how Drill That Gold's mechanics work before you start wagering real money is the single best investment you can make. The game rewards players who understand its systems — not just those who spin and hope.
Drill That Gold uses a standard five-column, three-row layout. All 20 paylines are active on every spin — you cannot reduce them. Wins are formed by landing three or more matching symbols on a payline, reading left to right from the first reel. The fixed payline structure means every spin has an identical number of ways to win, giving you predictable base-game behaviour to build your strategy on.
Below the visible 5×3 grid, Drill That Gold hides an underground layer containing extra symbols, multipliers and bonus triggers. The Drill Feature is the primary mechanic that allows players to access this layer. When drill symbols land in the correct positions, they bore downward and reveal what is hidden — creating wins that would be impossible without the excavation mechanic and adding a second dimension of excitement to every spin.
The Wild symbol in Drill That Gold substitutes for all regular pay symbols. It does not replace the Scatter or the Drill symbol. Wilds can appear on reels 2, 3, 4 and 5. When a Wild completes a payline win, it contributes the full multiplier value of the highest-paying symbol in that combination — so a Wild landing next to four gold nugget symbols generates the same payout as five gold nuggets on the payline.
The Drill is Drill That Gold's defining feature symbol. When one or more Drill symbols appear anywhere on the grid, they activate the drilling animation — each drill bores down through its reel column, revealing hidden symbols in the underground row beneath. These revealed symbols are added to the visible grid and evaluated for wins alongside the standard spin result. It is possible to trigger the Drill Feature on every single spin during a favourable streak.
The Scatter is the golden helmet symbol. Landing three or more Scatter symbols anywhere on the visible grid (or revealed by the Drill Feature) triggers the Free Spins round. Three Scatters award 12 free spins; four Scatters award 18; five Scatters award 25. Scatters pay regardless of payline position, making them the most valuable non-Wild symbol in the base game and the gateway to Drill That Gold's biggest potential payouts.
Drill That Gold supports a wide bet range to suit both casual joia99 players and high-stakes regulars. Minimum spin bet is ৳10 and maximum is ৳50,000 per spin at the highest stake level. Autoplay allows 10 to 1,000 automatic spins with configurable loss limits and single-win cap triggers. For new players at joia99, starting at ৳20–৳50 per spin is advisable until you are comfortable with the Drill Feature's behaviour and pacing.
Bonus Rounds
Bonus Features and Free Spins
Drill That Gold's bonus system is where the game's 5,000× max win potential becomes reachable. The Free Spins round and the enhanced Drill Feature during bonus play are the two core pillars of every big-win session that joia99 players across Bangladesh have reported.
The Free Spins round is triggered by three or more golden helmet Scatter symbols landing anywhere on the grid during the base game, or revealed by the Drill Feature. Upon entering the bonus round, all free spins begin with an enhanced drill probability — Drill symbols appear more frequently on every reel, meaning excavation events happen on nearly every free spin rather than occasionally as in the base game.
During free spins, each time the Drill Feature activates, the revealed underground symbols carry a multiplier boost. Underground wilds discovered during free spins carry a 2× or 3× multiplier applied to any win they contribute to. Combined with the already-elevated symbol frequency, this multiplier stacking is how Drill That Gold reaches its headline 5,000× max win figure.
Free spins can be retriggered during the bonus round by landing three or more Scatters again — each retrigger awards an additional 12 spins with no cap on the total number of free spins you can accumulate in a single bonus session.
During the Free Spins round, the Drill Feature's underground layer is replaced with a richer, higher-density layer of symbols. In the base game, the underground layer typically contains common symbols and occasional wilds. In bonus mode, the underground layer is pre-loaded with premium symbols — large gold nuggets, multiplier stones, and expanded wild clusters. Every drill activation during free spins has approximately 3× the reward density compared to base-game drills.
Multiplier Stones are a bonus-mode-exclusive symbol type revealed only by the Drill Feature during free spins. They display a fixed multiplier value (2×, 3×, 5× or 10×) and apply that multiplier to the total win for the spin on which they are revealed. If multiple Multiplier Stones are revealed in the same spin, their values multiply together — two 5× stones combine to a 25× win multiplier, which is a meaningful factor in reaching the top end of Drill That Gold's pay table.
On supported game versions at joia99, the Buy Bonus option lets you purchase immediate entry to the Free Spins round for a fixed cost of 100× your current stake. This skips the base-game scatter hunt entirely and delivers you directly to the enhanced bonus mode. At a ৳50 stake, the Buy Bonus costs ৳5,000. It is a high-cost shortcut best suited to experienced players with a clearly defined session budget and a tolerance for the higher variance it implies.
Pay Table
Payout Symbols and Pay Table
Drill That Gold uses a classic premium-plus-card-royals symbol set. The table below shows each symbol's payout multiplier for 3, 4 and 5 of a kind combinations across an active payline. Multipliers are applied to your total bet per spin, not your individual payline stake.
| Symbol | Type | 3 of a Kind | 4 of a Kind | 5 of a Kind | Category |
|---|---|---|---|---|---|
| ⛏️ Gold Vein | Premium | 1.5× | 5× | 25× | Top Paying |
| 🪨 Gold Nugget | Premium | 1× | 3× | 15× | High Paying |
| 💎 Raw Diamond | Premium | 0.8× | 2.5× | 12× | High Paying |
| 🔦 Lantern | Mid-tier | 0.5× | 1.5× | 8× | Mid Paying |
| 🪖 Hard Hat | Mid-tier | 0.4× | 1× | 6× | Mid Paying |
| 🅰️ Ace (A) | Card Royal | 0.2× | 0.6× | 3× | Low Paying |
| 🎴 King (K) | Card Royal | 0.2× | 0.5× | 2.5× | Low Paying |
| 🃏 Queen (Q) | Card Royal | 0.15× | 0.4× | 2× | Low Paying |
| 🎰 Jack (J) | Card Royal | 0.15× | 0.4× | 2× | Low Paying |
| 🔟 Ten (10) | Card Royal | 0.1× | 0.3× | 1.5× | Low Paying |
Multipliers apply to total stake per spin. Exact values may vary slightly by game version. Wild substitutions use the highest applicable symbol's multiplier. Scatter (golden helmet) pays scatter wins independently of paylines. 18+ only. Play within your means.
Expert Tips
Winning Strategies and Tips
Drill That Gold is a certified RNG slot — no strategy guarantees wins over any individual session. That said, experienced joia99 players across Bangladesh consistently apply the following principles to manage their sessions more effectively and maximise the time they spend in the bonus round, where the best prizes live.
Drill That Gold is a high-volatility slot, which means the base game can run lean for extended periods before a bonus triggers. Experienced players treat the base game as the cost of entry to the Free Spins round — where the enhanced Drill Feature and Multiplier Stones deliver the real value. Plan your session budget to survive at least 100–200 spins at your chosen stake level without hitting a bonus, so that when it does trigger, you still have enough balance to fully benefit from the retrigger potential.
Pay close attention to how frequently the Drill Feature activates in your early spins. If drills are appearing regularly and consistently revealing low-value symbols, the game is in a low-reward cycle and large win potential is building. If drills are appearing and revealing wilds and premium symbols frequently, enjoy the run — but be prepared for the pendulum to swing back. Drill That Gold's volatility profile rewards patience more than aggression.
A common mistake by new players at joia99 is setting stakes too high relative to their balance and burning out before a bonus triggers. A practical guideline: your session budget should cover at least 150 spins at your chosen stake level. If you have ৳3,000 to play with, that means a maximum of ৳20 per spin. At ৳50 per spin, you would need at least ৳7,500 in your session budget to be statistically comfortable against the game's average bonus frequency of roughly one per 100–120 spins.
The single biggest multiplier events in Drill That Gold happen when the Free Spins round is retriggered two or more times consecutively. A double retrigger gives you 24+ free spins with enhanced drills and Multiplier Stones active throughout. Triple retriggering is rare but has produced the game's highest recorded wins. Every free spin you play carries a meaningful retrigger probability — do not exit the game mid-bonus or use the cash-out-in-bonus feature unless your balance forces you to.
The bonus round animation in Drill That Gold is visually rich — each drill activation involves a layered animation sequence that benefits from a stable connection. joia99 players in Dhaka's Gulshan and Banani areas, as well as Chittagong's Nasirabad and Khulshi neighbourhoods, report the smoothest bonus-round experience on home Wi-Fi or office broadband. If you are on mobile data, connecting to a 4G signal before entering a bonus round avoids the frustrating experience of a dropped connection mid-feature.
Before every Drill That Gold session at joia99, decide two numbers: the profit level at which you will stop and pocket your winnings (your stop-win), and the loss level at which you will call it a day (your stop-loss). A sensible starting framework is a stop-win of 3× your session budget and a stop-loss of 100% of your session budget. Sticking to these numbers is what separates recreational players who enjoy the game sustainably from those who chase losses into territory that affects their finances. 18+ only. Gamble responsibly.
Budget figures based on 150-spin cushion at average bonus frequency. For entertainment only. 18+
Drill That Gold by Pragmatic Play is certified by independent testing laboratories including GLI and BMM. All spin outcomes are determined by a tamper-proof Random Number Generator. No pattern, timing trick, or bet-size change can influence the outcome of any individual spin. Every spin at joia99 is statistically independent of every previous spin.
Ready to Strike Gold?
Thousands of players across Bangladesh are already drilling for big wins at joia99. Deposit with bKash or Nagad in under two minutes and spin Drill That Gold today.
Login & Play Drill That GoldGetting Started
How to Deposit and Play at joia99
Getting from zero to spinning Drill That Gold at joia99 takes less than five minutes for most players in Bangladesh. Here is the complete step-by-step process from account creation to your first spin.
Visit joia99 in your browser and click the registration link. You will need a valid mobile number and a password. The entire registration process takes under two minutes. You must be 18 years or older to create an account — age verification is required as part of the KYC process before your first withdrawal is processed.
joia99 supports bKash, Nagad, Rocket, Upay, Dutch-Bangla Bank, City Bank, Visa and Mastercard. For players in Dhaka, Chittagong and Sylhet, bKash and Nagad are the fastest options — deposits reflect in your joia99 wallet instantly, 24 hours a day, 7 days a week, including during BPL match nights and Eid holidays.
The minimum deposit at joia99 is ৳200. Enter your desired amount in the deposit screen — the funds will appear in your joia99 casino wallet immediately after the transaction is confirmed by your payment provider. All deposits are processed in Bangladeshi Taka (BDT ৳) with no conversion fees applied by joia99.
Once your wallet is funded, use the top navigation menu on joia99 to click Drill That Gold, or use the casino game search to find it directly. The game loads in your browser — no download, no app install required. On Android or iOS, the game automatically adapts to your screen size and touch controls.
Use the bet controls to select your stake level — start with ৳10 or ৳20 per spin if you are new to the game. Once you are comfortable with the Drill Feature and the bonus mechanics, you can adjust your stake. Hit Spin or activate Autoplay and let the underground drilling begin. Good luck — may the drill reveal a full row of gold veins on your very first bonus.
All transactions are secured with 256-bit SSL encryption. Minimum deposit ৳200. Withdrawal processing times vary by method — bKash and Nagad withdrawals are typically processed within 1–4 hours.
Drill That Gold at joia99 is a fully browser-based experience. Open joia99.net in Chrome, Firefox, Safari or any modern mobile browser on your Android or iOS device and the game runs natively — no app download, no storage space used. Players in Rangpur, Mymensingh, Barisal, Rajshahi and Cox's Bazar all enjoy the same full-feature mobile experience as desktop users in Dhaka. The interface scales cleanly to all screen sizes from 5-inch phones to 13-inch tablets.
If you encounter any issue during deposit, gameplay or withdrawal, joia99's customer support team is available around the clock. Support is accessible via live chat directly within the joia99 platform. Response times average under three minutes during peak hours. Support staff can assist with deposit queries, bonus terms clarification, game loading issues and responsible gaming self-exclusion requests — all in English with Bangladesh-market awareness.
Play Safely
Responsible Gaming
joia99 is committed to providing a safe, fair and transparent gaming environment for all players in Bangladesh. Drill That Gold is an entertaining high-volatility slot — but like all casino games, it carries financial risk and should be played for enjoyment, never as a source of income.
18+ Age Restriction: Drill That Gold and all games at joia99 are strictly for adults aged 18 and above. By accessing and playing on joia99, you confirm that you are 18 years of age or older. Underage gambling is illegal and harmful — joia99 applies identity verification checks to prevent access by minors.
Gambling is designed as a form of entertainment. The house edge and RTP mechanics mean that, over a large enough number of spins, the casino retains a mathematical advantage. No strategy, timing system, or bet-sizing pattern can guarantee a profit. Every session should be approached with a fixed, pre-agreed budget that you are fully comfortable losing.
If you or someone you know is experiencing difficulties related to gambling, please visit the Responsible Gaming page on joia99 for self-exclusion tools, deposit limits, session time reminders and further support resources.
Set daily, weekly or monthly deposit limits directly in your joia99 account settings. Once a limit is active, it cannot be increased for 24 hours after the change request — this cooling-off period is a deliberate safeguard.
Enable session time alerts in your joia99 settings. The platform will notify you when you have been playing for a set duration — 30, 60 or 90 minutes — so you can take a break, reassess your balance and make a deliberate decision to continue or stop.
If you feel gambling is having a negative impact on your life, joia99 offers self-exclusion for periods of 1 month, 3 months, 6 months or permanently. During self-exclusion, your account is suspended and you will not receive promotional communications.
The reality check tool in your joia99 account shows you your net session result — wins minus losses — at the interval you choose. Seeing real numbers rather than just watching the spin counter is one of the most effective tools for keeping sessions grounded and enjoyable.
- Spending more than you can afford to lose
- Chasing losses by increasing bet sizes
- Borrowing money to fund gambling sessions
- Gambling affecting work, family or daily responsibilities
- Feeling anxious, irritable or depressed when not gambling
- Lying to others about the amount you gamble
- Neglecting meals, sleep or social obligations to play
If three or more of the above apply to you, please use joia99's self-exclusion tool immediately and seek support. Gambling should always be fun — if it stops being fun, stop playing.