Power of Ten has one mechanic and three bonus games built on it
Power of Ten is a Hacksaw Gaming slot played on a square five-by-five board, and almost everything it does comes out of a single symbol: the Power Wheel. The Wheel pays a cash prize rather than forming a combination, and the three bonus games are three different ways of making more Wheels land. What follows is the route into each one, told from the symbol outwards.
The shape of the game, in five rows
Gameplay and mechanics, from the symbol outwards
Most slots build their features on top of the paytable. This one builds them on top of one symbol that ignores the paytable entirely.
A Power Wheel lands on the board like anything else, and then does nothing. It stays inactive while the ordinary line wins are handled. Only once that is finished does it spin, and what it reveals is a cash prize rather than a share of a combination: 10x, 100x, 1,000x or MAX WIN, each paid as a multiple of whatever was staked on the spin. That wording is the studio's own, and it is worth reading twice, because it decides how the rest of the game is shaped. The Wheel does not need neighbours. It does not need to be on a line. It does not care what the reels around it did.
Everything else follows from that. If a single symbol can pay on its own, then the interesting question stops being “what combination am I waiting for” and becomes “how many of these can I get on screen at once”. When several land together their revealed values are added and the total is then multiplied by the stake, so two Wheels showing 100x and 1,000x are worth 1,100x together rather than being settled one at a time. Five of them on one row trade the entry value away altogether: on a full row the possible values become 100x, 1,000x or MAX WIN, and the 10x is gone.
MAX WIN is the exception to all of it. It is not a number on the ladder, it is a stop. If any Wheel reveals it, the game awards the ceiling at once and the round ends, with nothing left to add. That is why a page about this title can print one firm figure and very few others: the ceiling is a property of the game, while almost everything else a reader might want to know is a property of the operator.
Three bonus games, not one bonus at three sizes
The same FS Scatter symbol opens all three bonus games, and the count decides which one. Three of them open Deck of Fortune, four open Whopping Wheels, five open On the House, which the game does not advertise anywhere and which our source calls hidden for that reason. It is tempting to read that as a ladder, where more scatters simply buy a longer version of the same thing. It is not one.
Deck of Fortune is a free-spin round: ten spins, the ordinary rules intact, and a raised chance of Wheels landing. Whopping Wheels is not counted in spins at all. It gives three lives, and every Wheel that lands sticks where it is, stays inactive, and resets the lives to three, so the round lasts exactly as long as Wheels keep arriving. Nothing pays until the lives run out, and then everything collected activates at once and the values are combined. Fill the whole board with Wheels and it ends immediately on the same terms. On the House is ten spins again, but with at least one Wheel guaranteed on every reel of every spin, which is a different promise from a raised chance.
So a reader who lands four scatters has not got a better Deck of Fortune. They have got a collection round with a different ending, and the thing to watch is the board rather than a counter. That distinction is the single most useful thing to carry into this game, and it is the reason the three rounds have a page of their own here.
The two ways in, and what one listing charges for the second
Scatters are the first route. The second is in the name of the studio's own feature: High-Roller FeatureSpins. FeatureSpins is Hacksaw's word for an entry a player buys rather than waits for, and the High-Roller version is the most extreme of them: during it only Power Arrow symbols can land, arriving across the five reels in a descending run, and a complete horizontal row of five Arrows awards the ceiling outright.
One listing prices the purchase ladder for this title: three times the stake for a BonusHunt entry that makes a trigger several times likelier rather than granting one, a hundred times for Deck of Fortune, two hundred for Whopping Wheels, and a thousand for the High-Roller round. Those prices come from that listing and not from the studio page we hold, so they are printed here as its figures. What is not in doubt is that the purchased route exists, because the feature is named after it.
Whether any of it is available where a reader holds an account is a separate matter again. Purchased entries are switched off in several markets, and that decision sits with the operator and the rules it works under, not with the game.
What the studio does not publish, and what listings publish instead
The studio's page for this game is unusually detailed about rules and silent about numbers. It sets out the Wheel prizes, the addition rule, the full-row upgrade and the terminal MAX WIN in its own words, and it prints no return percentage anywhere. The legacy build of this site said so plainly, and that was the right call, so it is kept.
Outside pages are not silent. Several of them print 96.23 per cent, and they agree with one another to the second decimal. One goes further and describes that figure as a default an operator can replace, listing three lower builds beneath it; and a third page carries one of those lower figures in its own headline while its body text says 96.23, which is what a configurable return looks like when nobody says it is configurable. None of that is the studio speaking. All of it is on the figures page with the names attached.
What readers ask about this release
What is a Power Wheel?
A cash-prize symbol. It lands like any other symbol, waits while the ordinary line wins are settled, then spins and reveals 10x, 100x, 1,000x or MAX WIN, paid as a multiple of the stake.
How many bonus games does it have?
Three, and they are different games rather than three lengths of one. Three FS Scatters open Deck of Fortune, four open Whopping Wheels, five open the hidden On the House.
What makes Whopping Wheels different from the other two?
It is not counted in spins. It starts with three refilling lives, every Wheel that lands sticks to its position and puts the lives back to three, and the round pays once at the end when everything collected activates together.
The next four questions are the ones that decide whether the game is worth opening at all, so they are answered with the source attached rather than with a number on its own.
Can the bonus be bought instead of waited for?
The studio's name for the feature is FeatureSpins, which is its word for a purchased entry, and one listing prices four of them against this title. The prices are that listing's, not the studio's.
Does the Power of Ten top prize apply in the base game and bonus rounds?
10,000x the stake. Our source and every listing that prints a ceiling give the same figure, and it holds in the base game and in all three bonus games alike.
What is the return on this slot?
The studio does not print one for this title. Listings print 96.23 per cent, and the one that goes furthest says that is a default an operator can swap for a lower build.
The figures page sets out who says what, and why one number on its own would be misleading here.
Can it be tried without money?
A free round of this title is run by several catalogues, and the studio's own page for the game carries a control to try it. Whether any given site will actually open one is that site's business and varies.
Can the Power of Ten slot be played on this site?
No. There is no game here, no demo window, and no link on this site that pretends to be one. The only outgoing link is the operator button in the header.
The symbol everything is built on has its own page, the full set of special symbols and the two routes into a feature are on the feature page, and the three rounds are told apart on the bonus games page. Every number with the name of whoever published it is on the figures page, and the phone page covers the browser build.