777 Coins: Unlock the Treasure Chest of Luck and Multiply Your Win

The 777 Coins slot from 3 Oaks Gaming combines nostalgia for retro slots with modern payout mathematics. The developers have placed recognizable symbols like sevens, bells, BAR, and crystals in a simple 3×3 grid, and hidden within are a whole arsenal of bonus mechanics: Wild, Collect, progressive jackpot, and two stages of the bonus game. Thanks to the compact field and only five paylines, the slot remains intuitive but can offer payouts up to 2000× the bet per spin.
What Type of Slot is This?
777 Coins is a classic video slot with fixed paylines, high volatility, and the chance to trigger a large multiplier through a bonus session. It doesn’t feature complex clusters or megaways: the bet is spread across 5 lines, and all big wins are based on "three in a row" matches and bonus symbol combinations. This balance makes the game understandable for beginners while exciting for experienced players hunting for the jackpot.
The Mechanics Secret: How 777 Coins Works
- 3×3 Grid — Nine positions that refresh with each spin.
- Dynamic Payout Table: The coefficients are immediately recalculated based on your selected bet, so you always see the actual potential prize amount.
- Payouts from Left to Right: Winning lines are counted only for sequences starting from the far left reel.
- Fixed 5 Paylines: The number of lines cannot be changed, making it easier to set the bet and calculate the bankroll.
- Summing Up Wins: Matches on different lines are summed, but only the most valuable combination is counted on each individual line.
What Will the Crystals and Sevens Bring? Payout Table
Symbol | 3 in a Line (Multiplier to Bet) |
---|---|
Sevens (Wild) | 125× |
Bells | 75× |
BAR | 50× |
Purple Crystal | 40× |
Yellow Crystal | 40× |
Red Crystal | 10× |
Green Crystal | 10× |
Blue Crystal | 10× |
Black X | 2.5× |
Payout Table Breakdown
The most valuable symbol is sevens: they not only offer the highest base multiplier but also serve as the Wild, replacing any regular symbols to complete combinations. Bells and BAR are the "middle" level, regularly maintaining the balance between bonuses. Crystals of different colors most often appear on the reels, compensating for volatility with small but frequent wins. The "X" symbol is the minimum price for triggering the Collect function or collecting three sevens.
Special Symbols and Features — Where Big Wins Are Hidden
Wild (Three Sevens)
- Appears on all reels.
- Replaces any symbols except Bonus, Bonus Collect, and Jackpot.
- Can form its own combination of three sevens worth 125×.
Bonus (Silver-Golden Coin)
- Appears only on reels 1 and 3.
- Does not pay in the main game, but triggers the bonus session.
Collect (Golden Coin)
- Appears on the middle reel.
- Triggers the collection function: all Bonus coins on the field are instantly summed and paid.
Jackpot
In the bonus round, five jackpot cells are added to the regular coins. When any of them appears, the total win is instantly multiplied by the fixed multiplier:
- Empty Bonus Coin: 1×–15×
- MINI: 25×
- MINOR: 50×
- MAJOR: 150×
- GRAND: 2000×
Thus, even a single lucky Collect with the GRAND coin can turn the minimum bet into an epic win.
Game Plan: Strategy for 777 Coins Slot
- Bet 1–2% of your bankroll. High volatility means long series without wins — give yourself a buffer.
- Catch Collect. Frequent spins with a moderate bet increase the chances of a 1 + 1 + Collect combination.
- Turn off turbo mode at the start. Visually track the frequency of Bonus coins; during a long "dry" series, consider lowering the bet.
- "Tuning" after a bonus. After a significant Collect or bonus round, make 20–30 spins at the minimum bet — the game often "exhales" and moves to a series of small payouts.
- Set a goal. Determine at what bankroll increase (e.g., +50%) you will end the session.
Coins to Treasure: How the Bonus Game Works
What is the Bonus Game?
It’s a separate round within the slot where regular symbols are removed, and the field is filled only with Bonus coins, Collect, and Jackpot cells. The goal is to collect as many coins as possible before the three respins run out.
Triggering the Bonus
On the main field, 2 Bonus (reels 1 and 3) + 1 Collect (reel 2) must appear.
Main Mechanics
- Starting supply: 3 respins.
- Any new symbol (Bonus/Collect/Jackpot) resets the counter to 3.
- Collect collects all Bonus and Jackpot values on the field. Collect may appear multiple times during the bonus round.
- Final win = sum of all collected multipliers × base bet.
Additional Bonus Game
Each bonus symbol that appeared in the main game accumulates a "chance to restart." The more such symbols you collect before the trigger, the higher the chance that after the current bonus round ends, another one will start automatically. This is a kind of "luck chain" that can extend the Collect series and significantly increase the final multiplier.
Demo Mode: Train Without Risk
Demo mode is a free version of the slot where virtual credits are used instead of real money. You get full functionality: Wild, Collect, Bonus rounds, and even the progressive jackpot, but without the ability to withdraw any prize.
How to Activate
- Open 777 Coins in your chosen online casino.
- Find the "Demo / Real" toggle. In most lobbies, it’s located at the bottom left corner of the screen.
- If the game starts with real bets, click the same toggle (as shown in the interface screenshot) to activate the demo mode.
Why Use the Demo Format
Test the frequency of Bonus and Collect triggers, choose the optimal bet and bankroll size, and assess volatility without financial pressure.
The Final Stretch — Why 777 Coins Deserves Your Bet
777 Coins combines the simplicity of a classic slot with the thrill of modern Hold-&-Collect mechanics. The fixed five paylines make it easy to control your bankroll, and the Bonus + Collect system makes every spin exciting: even with a low bet, you can suddenly trigger a bonus game where the GRAND coin will multiply your win by 2000 times.
Try the slot in demo mode, perfect your strategy, and switch to real bets when you're ready. 3 Oaks Gaming created a machine where every seven is not just a symbol of luck, but a key to the vault of virtual coins. Good spins and generous Collects!