Massive Gold Power Staxx
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game review avatarReel McCoy

Massive Gold Power Staxx Slot Review

The United States government stores approximately 147 million ounces of gold, worth about $250 billion, at Fort Knox. 🏦 For 43 years (from 1974-2017), no independent audit has been conducted inside the vault to verify if any of this gold actually exists.

Only a handful of individuals have had access to view the gold stored within the vault, but they are forced to turn over their cellphones, notebooks, watches, as well as other items before entering. 🤔

In other words, you might be able to see the largest amount of gold available worldwide, but you'll never be able to prove it. No one has ever photographed 📸 an opening inspection of the vault, so we still don't know if the gold is actually in there.

Quickfire had that in mind when they created Massive Gold Power Staxx slot. Gold Bars may pop open the vault, but only if the game feels like it.

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Gameplay

Somebody at the studio decided the reels belong inside a jet engine, so they sit in a chrome-and-gold housing with a glowing exhaust ring burning under every column.

In addition, a turbine dial arches overhead showing the current Mach Booster value, and behind the symbols a neon pink-and-blue city skyline glows away like a Vegas night that got out of hand.

Four fixed jackpots ride along the top of the screen: Mini (10x), Minor (20x), Major (100x), and Mega (5,000x).

The game runs on a 5x3 grid with 20 paylines, and at the top of the paytable the $ symbol and the 777 each pay 15x for 5-of-a-kind. The gold Bell and a pair of blue Dice come in tighter at 7x for the same line of 5.

The card ranks carry the cheap end, where the A pays 2.4x, the K 1.8x, the Q 1.2x, and the J 1x. The Wild stands in for anything except Jet Spins, Gold Bar, Collect, Staxx, Overdrive, 1UP, Blank, and Prize symbols. It pays in its own right, 50x for 5-of-a-kind, 25x for 4, and 10x for 3.

Looking at the stats, the game runs on a 96% RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.

RTP needs to be considered in conjunction with a game’s volatility rate.
, a medium volatility rate, a 5,200x max multiplier, and a $208,000 max win. This is a fiat-currencies only game, with the Japanese yen locked out.

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Features

MACH BOOSTER AND COLLECT WINS

The Mach Booster is a running multiplier that climbs every time a 1UP symbol lands, capping at 10x in the base game, and it works its own trail as high as 50x inside Jet Spins and Overdrive Spins.

Collect Wins need a Collect symbol on reel 5 landing alongside a Gold Bar and/or Staxx symbol somewhere on reels 1 to 4.

The win totals every cash value showing on that spin, multiplies the lot by the current Mach Booster, and then the Booster drops back to where it started.

STAXX SYMBOL

A Staxx symbol landing on the top or middle row slides down to the bottom row and stretches upward, unpacking 3 to 8 extra symbols with a cash prize attached to each one.

Whatever gets revealed last can pay again on top, either another cash prize, a 1UP, or a Mini, Minor, or Major win.

The mechanic behaves the same everywhere, in the base game, in Jet Spins, and in Overdrive Spins, Afterburner included.

JET SPINS

Land 3 Jet Spins symbols on reels 1, 3, and 5 in the base game and you're off to the races with 10 Jet Spins, the Mach Booster idling at 1x.

Every 1UP symbol you collect during the round nudges the Booster another step up a fixed trail, and each step comes with extra spins attached.

The round runs until all spins are gone, and the payout at the end covers every payline win and Collect Win you picked up along the way.

OVERDRIVE SPINS

Overdrive Spins needs Overdrive symbols from all 5 reels, collected on a single spin or pieced together across several.

You start with 5 spins, the Mach Booster back at 1x, and 6 stages ahead of you. Every 3 Fuel Cells you gather moves you up a stage, which adds 5 more spins and lifts the Mach Booster multiplier.

Afterburner

If you run out of spins before that third Fuel Cell shows up, the Afterburner takes over, keeping the reels turning at the current Mach Booster value until a Collect Win finally lands.

The payout works the same way as Jet Spins, totaling every payline win, Collect Win, and Afterburner win from the round.

JACKPOTS

A Gold Bar landing in the base game can trigger the Jackpot round at random, dropping you onto an empty grid with 3 bonus spins.

A Gold Bar or Prize symbol landing anywhere on the grid puts you back to 3 spins, and filling every position pays the 5,000x Mega prize outright. Prize symbols also collect into a meter for each tier, so landing 3 of the same one pays that tier on the spot.

The round closes when the spins run out or the grid fills, and every Gold Bar, Staxx, and Prize win from the round gets added up.

BUY BONUS

The Buy Bonus charges 60x for Jet Spins or 100x for Overdrive Spins, and it's a base-game option that leaves the Mach Booster exactly where it is.

Performance

The game has a jet engine bolted to the reels and still never once overheated on me. Jet Spins, Overdrive Spins, and the Static Jackpots round all handed off to each other without a stutter.

Maximum Win

The $208,000 max win is yours to keep when you land the 5,200x max multiplier on a $40 top bet. Players who'd rather not throw $40 at a jet engine can go as low as $0.20.

Conclusion

The Mach Booster, the multiplier that ticks up every time a 1UP symbol lands and then multiplies whatever Collect Win turns up next, does a lot of the heavy lifting.

Push the Booster up through Jet Spins or Overdrive Spins and an ordinary Gold Bar, Staxx, and Collect combination starts paying like a jackpot.

Reaching the full 5,200x max multiplier realistically means Overdrive Spins, landed or bought, with the Mach Booster ground all the way up through Fuel Cell after Fuel Cell.

Then you need a big Collect Wins combination on the same spin, a long shot, but a readable one, since the 1UP and Fuel Cell counters sit on screen telling you how close you are.

The Jackpot round has a blunter route to nearly the same money, with 3 Mega symbols landing in the round paying 5,000x outright and no Mach Booster involved.

Longer sessions are not an issue with this RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.

RTP needs to be considered in conjunction with a game’s volatility rate.
, so there's no need to play in short, defensive bursts. A 5,200x max multiplier is also bigger than medium volatility usually carries, which is great news for players.

The Buy Bonus is split into two choices: the cheaper of the two buys the door into Jet Spins, while the pricier one guarantees Overdrive Spins and its longer run at the Mach Booster.

Patient players who don't flinch at a $40 top bet and enjoy a long game of stacking multipliers will get the most out of the game, but cautious low-bet players chasing quick, frequent hits should look elsewhere.

Slot Details

Game Provider: Quickfire
Game Type: Video Slots
PaylinesPaylines are preset lines that run across the reels, and when you land matching symbols on them, that will result in a payout. The more paylines, the more ways you can win, but also the higher your bet per spin.: 20
RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.

RTP needs to be considered in conjunction with a game’s volatility rate.
: 96%
Volatility RateSlot games can have low, medium, high, or extremely high volatility rates (or a combination thereof).

The less volatile the game, the more often it should pay out, but the lower the amount, the less the payout, as this is in keeping with the risk you’re taking. Volatility rate should be considered in conjunction with a game’s RTP.
: Medium
Bonus Round: Yes
Progressive: No
Free Rounds: Free Spins
Max Multiplier: 5,200x
Max Win: $208,000
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