Mega Cash Stack (Yggdrasil Gaming) – Review & Demo Play

Mega Cash Stack Slot Overview

I went into Mega Cash Stack expecting a money-first setup and got exactly that. It runs on 5 reels and 4 rows with 25 paylines, stacked symbols all over, and bets from 0.20 to 100. Default RTP sits at 96% though I have seen versions at 94%, 90.5% and 86%, so I always check the info panel. Volatility plays at medium to high, hit frequency clocks about 12.5% and the max win reaches 2500x, and single base spins can peak around 200x when the stacks line up.

Mega Cash Stack Slot Information

Mega Cash Stack leans into the glossy money look with a velvet backdrop, golden reel frames and the logo perched above as notes drift down. Buttons sit to the right, while Buy A Bonus, Gamble 5X Stake, and Golden Bet are placed on the left. The 25 paylines pay left to right starting from reel one, so you need lines beginning on the first reel. Symbols commonly land in stacks, often covering full reels, which sets up those sweeping connections when the same icon cascades across several columns.

Because the reels load with stacks, I see fewer hits but they tend to matter more. The hit rate sits around 12.5%, so expect seven of eight spins to blank, yet when lines do land they usually pay decently rather than dribbling cents. I also like that wilds can land stacked, paying the same as the logo when they fill a line. It gives the base game a punchy feel, and it tees up the features nicely when the symbols align across several neighbouring reels.

I run this on mobile and desktop without issues, and the stacked landings read cleanly on both. Between base spins you can toggle Golden Bet on or off and switch the Gamble setting, which keeps the pacing under your control. The paytable is straight to the point, with card suits as lows and currency signs as highs, plus a game logo and a wild that mirrors it. Scatters come labelled bonus, and three in view take you to progressive free spins.

Symbols and Paytable in Mega Cash Stack

The low pays are the card suits, paying 0.8x for five of a kind. High pays are currency signs euro, pound, yen and dollar, worth 1.6x to 3.2x for a full line, with the dollar top by default though local currency can take that spot. There is a super symbol in the game logo that pays 8x for five, and the wild matches that prize while substituting. With most symbols landing in stacks, full-reel blocks are common, setting up sweeping five-line connections.

Mega Cash Stack Symbols and Paytable

Symbol	Quantity	Payout
	5	x20
	4	x4
	3	x1
	5	x8
	4	x2
	3	x0.8
	5	x6
	4	x2
	3	x0.8
	5	x4
	4	x1
	3	x0.4
	5	x4
	4	x1
	3	x0.4
	5	x2
	4	x0.4
	3	x0.1
	5	x2
	4	x0.4
	3	x0.1
	5	x2
	4	x0.4
	3	x0.1
	5	x2
	4	x0.4
	3	x0.1
	Scatter
	Wild

Golden Bet and Bonus Buy in Mega Cash Stack

Golden Bet sits on the left and can be toggled between spins. It raises the cost of each spin by 50 percent and in return bumps the free spins trigger odds from about one in 192 to roughly one in 92. RTP stays the same. I tend to flick it on when I am chasing a session with more feature volume, then switch it off if the balance needs a breather. The ability to adjust between spins makes it practical rather than a locked commitment.

Where allowed, there is a Buy A Bonus button that charges 100x the stake and drops you straight into the progressive free spins. A wheel rolls to set the start at 5, 7, 9, 10, 12 or 15 spins. The purchase price does not change the RTP. I only use it when the base game feels cold and I want the feature maths front and centre, though in the UK that option is off, so Golden Bet and the regular trigger are the routes in.

Gamble Feature in Mega Cash Stack

The gamble is smarter than most. You can leave it off, switch it on, or set Gamble 5X Stake so it only launches when a win is at least 5x bet. When it fires, two cash stacks appear showing odds with red coins for danger and golden coins for safer steps. The left path lets you go for bigger cash, the right path takes a shot at free spins. You choose which road to take based on the coin mix displayed.

On the cash side you press on in all or nothing steps, with options to add a third, double or triple the take, and the long-term maths sits at 100 percent for those rungs. On the spins side you move a counter up or down to trade probability against the number of free spins on offer. The feature caps at 2500x or 15 free spins. Miss a step and the original win is gone, which keeps the heart rate honest.

Free Spins in Mega Cash Stack

Free spins trigger when three bonus symbols land anywhere. You then spin a wheel that sets the start at 5, 7, 9, 10, 12 or 15 spins. The hook is progressive free spins, where every spin pays more than the last, so the later spins carry the weight. Retriggers are on the table, and with stacked symbols in play the reels can align for broad lines when the momentum builds. It is a neat build-up mechanic that fits the stacked format.

In practice you need a decent starting batch or some retriggers to make the most of it. The progressive climb in the bonus is capped around 2250x, while the overall game tops out at 2500x, so expectations should be kept in check. Some rounds barely move the meter, others ramp up briskly, and that swing pairs with the medium to high volatility. When I want more bites at the feature I flip on Golden Bet, as the improved trigger odds do help over longer sets.

Review Summary for Mega Cash Stack

Mega Cash Stack nails the cash-first brief with stacked symbols, a straight paytable and features that keep you involved. I rate the gamble for its flexibility, though it will torch plenty of 5x-plus wins, and the progressive free spins add a tidy build yet top-end power is middling. With a 2500x ceiling and variants that dip RTP as low as 86 percent, I always check the version before I start. When the stacks roll, it entertains, but it is not a monster.