Double Stack Up Pays Island Riches
About this machine
Incredible Technologies turns up the heat with a fiery sequel to the top-performing Stack Up Pays™ game family. Double Stack Up Pays Island Riches™ delivers the features players have come to know and love with some added twists.
Like the original title, 243 Ways to Win are full of tropical symbols, but players are keeping their eyes peeled for surfboards! Two golden surfboards on reels one and three in combination with any colored surfboard on reel five will initiate its respective Free Spins Bonus. There are even DOUBLE surfboards to grow or trigger two bonuses at once. Stacked above the reels are Mini, Minor, Major, Grand, and Mega Free Spins, each keeping count of the collected random expansion! Each number corresponds with the number of added reel expansions during Free Spins.
Free Spins can also be awarded with a pick bonus! Lava symbols are wild on the reels, then fly up to the volcano above. The mighty volcano grows and may rumble to spew lava and initiate a pick bonus! Players select glowing lava rocks to match three for an award, but if a special DOUBLE Tiki image is revealed, players are picking for TWO unique prizes! Any combination of Free Spins, SuperSync Progressive™, or Jackpot awards may be won.
Each Free Spin event awards 10 free spins. If two Free Spin events are awarded with the Double Tiki, players are in for 20 spins with the combined accumulated expansion! Extra wilds may be added to the reels for Free Spins. Once within a Free Spin bonus, players can retrigger with two golden surfboards for added spins and additional expansions.
Fans of the original Stack Up Pays game family are sure to find that the heat has been cranked up in this DOUBLE-the-fun evolution.
Description sourced from the manufacturer's public product page.
Double Stack Up Pays Island Riches on video
Real footage of this machine — 1 clip whose title names it. We index them; the videos live on YouTube. More on YouTube ↗
Artwork & cabinet
Where Double Stack Up Pays Island Riches sits in Incredible Technologies's range
It is listed on the Prism Spark cabinet. The cabinet is the hardware — screen geometry, button deck, chair and speakers — and the same title is frequently released on more than one, which is why a game can look and feel different at two properties.
What's the RTP of Double Stack Up Pays Island Riches?
There isn't one number — and any site quoting you a single figure is describing a different product.
Manufacturers ship the same title in multiple par versions, commonly spanning roughly 85% to 96%. The casino chooses which one to install, and that choice is not disclosed on the machine. Nevada regulation only sets a floor: every wager must theoretically return at least 75%.
What regulators actually publish is hold percentage — realised performance after player behaviour, aggregated by region and denomination. It is never broken out by game title. So the honest answer for any land-based machine is a range plus an unknown configuration, not a single figure.
Figures quoted elsewhere for this title are almost always taken from its online version, which is a different product with a different maths model.
Where to play
We don't yet have verified floor placements for this machine. Our casino cross-reference covers 442 properties, but only through IGT's public linked-progressive data — which doesn't reach Incredible Technologies titles. We would rather show nothing than guess.
Other Class III machines from Incredible Technologies
Same regulatory class, same manufacturer.
Most-filmed Incredible Technologies machines
All 59 Incredible Technologies machines →The titles from this manufacturer that slot channels actually put on camera.
