High-Volatility Treasure Slot
Ultra Treasure is c666's most ambitious treasure-hunt slot. Built around a high-volatility engine with multiplier wilds, a multi-level bonus chest feature, and a max win potential that puts it in a different league from most games in the lobby — this is the slot you play when you're ready to go after something big.
Game Overview
Ultra Treasure is a five-reel, four-row video slot running on forty fixed paylines. The theme is built around a deep-sea and underground treasure hunt — think ancient gold coins, jewelled chests, explorer maps, and glowing gemstones filling the reels against a backdrop of cavern walls and flickering torchlight. It's a visually rich game, but the design never gets in the way of the gameplay.
The core mechanic that defines Ultra Treasure is the multiplier wild. Unlike a standard wild that simply substitutes for other symbols, the multiplier wild in Ultra Treasure carries a value — 2×, 3×, or 5× — that applies to any win it contributes to. When multiple multiplier wilds appear in the same winning combination, their values multiply together rather than add. Two 3× wilds in the same win line produce a 9× multiplier on that combination. Three wilds of any value can push a single payline win into territory that's genuinely impressive relative to your stake.
The Treasure Chest bonus feature is the other major mechanic. Landing bonus symbols triggers a pick-and-reveal round where you open chests to collect prizes — instant cash awards, free spins, multipliers, or access to deeper levels of the bonus with higher prize pools. The multi-level structure means a good bonus round can escalate significantly, with each level offering larger prizes than the last.
Ultra Treasure is a high-volatility game. That means wins don't come as frequently as in a medium-volatility slot, but when they do arrive — especially during the bonus feature or when multiplier wilds stack — they tend to be substantial. On c666, this game has developed a following among players who are comfortable with variance and are specifically looking for the kind of win potential that lower-volatility games simply can't offer.
Bonus Mechanics
The mechanics that give Ultra Treasure its high-win potential and keep sessions exciting.
The multiplier wild substitutes for all regular symbols and carries a multiplier value of 2×, 3×, or 5×. When multiple multiplier wilds contribute to the same winning combination, their values multiply together — two 3× wilds produce a 9× multiplier on that win line, dramatically amplifying the payout.
Landing three or more bonus symbols anywhere on the reels triggers the Treasure Chest feature. You pick from a selection of chests to reveal prizes — instant cash, free spins, multipliers, or a key that unlocks the next level of the bonus with a larger prize pool. The deeper you go, the bigger the rewards.
The Treasure Chest bonus has three distinct levels — Bronze, Silver, and Gold. Each level offers progressively larger prizes. Collecting a key during the pick round advances you to the next level. Reaching the Gold level opens the Grand Vault, where the largest fixed prizes and multipliers in the game are available.
Free spins can be awarded both from the Treasure Chest bonus and directly from scatter symbols. During the free spins round, all wild symbols are upgraded — standard wilds become 2× multiplier wilds, and existing multiplier wilds have their values increased by one tier. This makes the free spins round significantly more powerful than the base game.
After any winning combination, the winning symbols are removed from the reels and new symbols fall into their positions. If the new symbols form another winning combination, the process repeats. Cascading wins can chain multiple payouts from a single spin, and each cascade during the free spins round keeps the multiplier wilds active on the grid.
Ultra Treasure on c666 is fully optimised for mobile browsers. The 5×4 grid scales cleanly to any screen size, all animations run smoothly, and the Treasure Chest bonus pick round works perfectly on touchscreens. No app download needed — just open c666 in your mobile browser and the game loads instantly.
Why It Works
High-volatility slots are a specific kind of game. They're not for everyone, and the ones that are worth playing are the ones where the high variance is justified by genuine win potential — not just marketing language. Ultra Treasure earns its high-volatility label honestly. The multiplier wild mechanic is the reason. When you land two or three multiplier wilds in a single winning combination, the effect on the payout is multiplicative, not additive. That's a meaningful distinction. A 3× wild and a 5× wild in the same win line don't produce a 8× multiplier — they produce a 15× multiplier. That kind of exponential scaling is what gives Ultra Treasure its 10,000× max win potential, and it's what makes a good spin feel genuinely different from a standard slot win.
The cascading wins mechanic adds another layer. After a winning combination pays out, the symbols disappear and new ones fall in. If those new symbols form another win, the cascade continues. During the free spins round, where wilds are upgraded and multiplier values are elevated, a cascade chain can compound into a payout that's many times larger than any single spin would produce. It's the kind of mechanic that makes you watch every spin carefully rather than just clicking through.
Two multiplier wilds in the same win line multiply their values together — 3× and 5× becomes 15×. This is the core mechanic that drives Ultra Treasure's high win potential.
The Bronze → Silver → Gold bonus structure means a single bonus trigger can escalate through multiple levels, with each level offering larger prizes than the last.
Paytable
Payout multipliers per winning combination on a single payline at maximum bet.
| Symbol | 3 of a Kind | 4 of a Kind | 5 of a Kind | Type |
|---|---|---|---|---|
| Golden Crown | ×8 | ×40 | ×800 | Premium |
| Diamond Chest | ×6 | ×30 | ×600 | Premium |
| Ruby Gem | ×5 | ×25 | ×500 | Premium |
| Emerald Stone | ×4 | ×20 | ×400 | Premium |
| Gold Coin Stack | ×3 | ×12 | ×200 | Standard |
| Explorer Map | ×2 | ×8 | ×120 | Standard |
| Compass | ×1.5 | ×6 | ×80 | Standard |
| Multiplier Wild (2×/3×/5×) | Substitutes all regular symbols — multiplies win value by 2×, 3×, or 5× (stacks multiplicatively) | Wild | ||
| Treasure Chest Bonus | 3+ anywhere triggers multi-level Treasure Chest bonus pick round | Bonus | ||
| Scatter | 3+ anywhere triggers free spins with wild upgrade | Scatter | ||
Values shown as multipliers of the total bet. Actual payouts depend on your stake per spin on c666. Multiplier wilds stack multiplicatively when multiple appear in the same winning combination.
By the Numbers
The key figures behind Ultra Treasure on c666 — from RTP to volatility to the bet range available to Bangladesh players.
| Specification | Value |
|---|---|
| Reels × Rows | 5 × 4 |
| Paylines | 40 fixed |
| Min Bet on c666 | ৳20 per spin |
| Max Bet on c666 | ৳10,000 per spin |
| Bonus Trigger | 3+ Bonus symbols |
| Free Spins Trigger | 3+ Scatter symbols |
| Wild Type | Multiplier (2×, 3×, 5×) |
| Cascading Wins | Yes |
| Retrigger | Yes |
| Mobile Compatible | Yes — all devices |
Getting Started
New to Ultra Treasure or to c666? Here's how to get into a session from scratch.
Registration takes under two minutes. You'll need a username, password, and email. Once registered, you're immediately eligible for the c666 welcome bonus on your first deposit — which can be used on Ultra Treasure.
Head to the cashier and choose your preferred payment method. c666 supports a range of local and international options. Deposits are credited instantly in most cases, so you can start playing right away.
Navigate to the slots section of c666 and find Ultra Treasure, or use the direct link in the navigation menu. The game loads in your browser — no download, no plugin, no waiting.
Use the bet controls to choose your stake per spin. For a high-volatility game like Ultra Treasure, keeping your bet at around 0.5–1% of your session balance gives you enough spins to let the bonus features trigger naturally without burning through your bankroll too quickly.
In the base game, multiplier wilds are the events to watch for. In the bonus round, focus on finding the key that advances you to the next level — the Gold level Grand Vault is where the largest prizes live. During free spins, the upgraded wilds make every cascade chain more valuable.
Ultra Treasure is a high-volatility game — that means you need a deeper bankroll than you would for a medium-volatility slot. Aim for at least 80–100 spins worth of balance before you start. At ৳100 per spin, that means having ৳8,000–10,000 set aside for the session. This gives the bonus features enough time to trigger and deliver their full potential.
In the Treasure Chest bonus round, always prioritise picking the chest that reveals a key over instant cash prizes when you're at the Bronze or Silver level. Advancing to the Gold level Grand Vault gives you access to the largest prizes in the game — the difference between a Silver-level payout and a Gold-level payout can be significant.
During free spins, don't close the game or navigate away mid-cascade. Each cascade in the free spins round keeps the upgraded multiplier wilds active on the grid. A cascade chain of three or four wins with multiplier wilds in play can produce a combined payout that's far larger than any single spin would generate.
How It Compares
See how Ultra Treasure stacks up against other popular games in the c666 lobby.
| Feature | Ultra Treasure | Wild Bounty Showdown | Butterfly Blossom | Prosperity Fortune Tree |
|---|---|---|---|---|
| RTP | 96.5% | 96.8% | 96.7% | 96.9% |
| Volatility | High | High | Medium | Medium |
| Max Win | 10,000× | 8,000× | 5,000× | 6,000× |
| Multiplier Wilds | ✓ (2×/3×/5×) | ✓ | — | ✓ |
| Bonus Round | ✓ Multi-level | ✓ | ✓ | ✓ |
| Cascading Wins | ✓ | — | — | — |
| Free Spins | ✓ With wild upgrade | ✓ | ✓ | ✓ |
| Min Bet on c666 | ৳20 | ৳10 | ৳10 | ৳10 |
Deep Dive
Ultra Treasure is not a game you play casually. That's not a criticism — it's just the nature of high-volatility slots. The game is designed to produce infrequent but large wins, and the mechanics are built around that philosophy. The multiplier wild system, the cascading wins, the multi-level bonus — all of these features are oriented towards producing big payouts when conditions align, rather than delivering a steady stream of small wins to keep your balance ticking over.
Understanding the multiplier wild mechanic properly is the most important thing you can do before you start playing. The key word is multiplicative. When two multiplier wilds appear in the same winning combination, their values don't add — they multiply. A 2× wild and a 5× wild in the same win line produce a 10× multiplier on that combination. Three wilds — say 2×, 3×, and 5× — produce a 30× multiplier. At a stake of ৳500 per spin, a 30× multiplier on a premium symbol combination can produce a single payline win of several thousand taka. That's the kind of event that makes Ultra Treasure worth the variance.
The cascading wins mechanic interacts with the multiplier wilds in a way that's worth understanding. When a winning combination pays out and the symbols cascade away, the multiplier wilds that contributed to that win remain on the grid for the next cascade. If the new symbols that fall in form another winning combination that includes those same wilds, the multiplier applies again. A cascade chain of three or four wins with a 5× wild locked in position can compound into a total payout that's far larger than any single spin would produce.
The Treasure Chest bonus is where the game's multi-level structure becomes important. When the bonus triggers, you're presented with a selection of chests. Each chest contains either a prize — instant cash, free spins, or a multiplier — or a key. The key is what you want. Finding a key advances you from Bronze to Silver, or from Silver to Gold. The Gold level Grand Vault contains the largest fixed prizes in the game, and reaching it from a single bonus trigger is the scenario that produces the biggest bonus payouts. The strategy is straightforward: when you're at Bronze or Silver, prioritise the key over the immediate prize. The expected value of advancing to the next level is almost always higher than the instant prize on offer.
For c666 players using welcome bonus funds, Ultra Treasure contributes 100% to wagering requirements. Given the high volatility, it's worth thinking about how you approach this. High-volatility games can clear wagering requirements quickly when they hit — a single good bonus round can wager a significant amount in one go. But they can also produce long dry stretches. If you're bonus clearing with Ultra Treasure, make sure your stake is low enough that you have enough spins to let the features trigger. A stake of ৳50–100 per spin on a ৳5,000 bonus balance gives you 50–100 spins — enough to give the game a fair chance to deliver.
Three multiplier wilds at 2×, 3×, and 5× in the same win line produce a 30× multiplier — not 10×. Understanding this distinction is what separates informed Ultra Treasure players from casual ones.
In the Treasure Chest bonus, the key that advances you to the next level is almost always worth more than the instant prize. Reaching the Gold Grand Vault is where the largest bonus payouts originate.
High volatility demands a deeper bankroll. Keep your stake at 0.5–1% of your session balance so you have enough spins to let the bonus features trigger and deliver their full potential.
Ultra Treasure contributes 100% to wagering requirements on c666. Every taka wagered counts in full — making it one of the most efficient games for clearing bonus funds while maintaining real win potential.
Player Feedback
Real impressions from players who have spent time with Ultra Treasure on c666.
"Hit the Gold level Grand Vault on my third bonus trigger. The multiplier wilds had already given me a decent base game win earlier in the session. When the bonus escalated all the way to Gold, the payout was the biggest I've had on c666 in months. High volatility is real — you need patience — but when it pays, it really pays."
"The cascading wins during free spins are what make this game special. I had a cascade chain of five wins with a 5× multiplier wild locked in the middle reel. Each cascade added to the total and by the end of the chain the combined payout was something I genuinely didn't expect from a single free spins round. Brilliant mechanic."
"I play Ultra Treasure specifically for the bonus round. The three-level structure is genuinely exciting — every pick feels meaningful because you're either collecting a prize or advancing to a better level. The Gold Grand Vault is worth chasing. My only note is that the base game can be slow between features, but that's just high volatility doing its thing."
FAQ
The most common questions from c666 players about Ultra Treasure.
Ready to Hunt?
Join c666 and take on Ultra Treasure — multiplier wilds that stack multiplicatively, a three-level Treasure Chest bonus, cascading wins, and a 10,000× max win potential. All from ৳20 per spin.