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Joker Stoker

Endorphina · 5x4 · 40 fixed lines

Joker Stoker slot: a stacked joker on 40 fixed lines

The joker arrives in stacks, and that is the sentence this whole machine is built around. Four rows, 40 fixed lines and a furnace behind the reels: the Joker Stoker slot is where Endorphina bolted a bonus round onto its fruit set. Free spins run from 10 to 30, and a buy menu sells them outright if waiting is beyond you. RTP 96.07%, volatility low to medium, ceiling 2000x, stakes 0.4-140 EUR. The studio runs no open demo, so the free game opens from the lobby card.

  • ProviderEndorphina
  • RTP96.07%
  • VolatilityLow to medium
  • Max win2000x
  • Reels5x4
  • Ways to win40 fixed
  • ReleaseJune 2021

The provider does not publish an open demo for this game; the free version opens from the game card in the Vavada lobby.

Play for real money

Four rows change what a fruit symbol is worth

The grid is 5x4 with 40 fixed lines running across it, and the extra row is the whole design. On three rows a payline is a thin path; on four, the lines cross the reels so densely that one tall symbol touches a large share of them at once. Endorphina put a stacked wild on that grid, and the two decisions only make sense together.

  • The joker is the wild, he pays 50x a line on his own, and he lands in stacks that can fill a reel top to bottom.
  • The seven pays 10x a line and heads the ordinary symbols: bells, melons, plums, lemons and cherries follow it down.
  • The scatter opens the free spins and pays no attention to the lines, so its position on the screen does not matter.
  • Lines are fixed. Nothing to switch on, nothing to switch off, and the stake slider is the only control the game gives you.
  • The furnace behind the reels fills with coal while you play and burns down again. It changes nothing on the paytable, and I watch it anyway.
  • The gamble card after a win is here as in the rest of the catalog: double or lose, up to 10 times running.

My one memory from this card is a middle reel that came up solid joker with sevens standing on both sides. Every line on the screen paid at once, the counter took about four seconds to finish, and the balance had moved by an amount I could feel.

Scatters, spins and what the buy menu charges for them

Three scatters open the round, and the number of spins climbs with every scatter beyond the third. The buy menu sells the same three doors at a fixed price in stakes, so the table below is the entire bonus economy of the game on one screen.

Scatters on the screenFree spins it opensPrice if you buy the same door
Three10 spins55x of your stake
Four20 spins109x of your stake
Five30 spins164x of your stake

Divide each price by the spins it buys and the three doors come out level, give or take a rounding. That is worth checking, because a buy menu can price its big door at a higher cost per spin than its small one. Here the choice is honest: pay for a short round or pay proportionally more for a long one, and the math of what happens inside is the same either way.

Inside the round the reels keep their ordinary paytable and the jokers keep stacking, which is the only engine the bonus has. What the scatters buy you is length and free stakes; the jokers decide the rest, exactly as they do downstairs in the base game.

RTP 96.07% and a volatility label with two words in it

The fourth row is where this label comes from. One more row means more symbols in play every spin and more lines crossing them, so small wins land often enough that the balance rarely falls in a straight line, and then a joker fills a reel top to bottom and the same screen pays several times what an ordinary hit does. That is what Endorphina means by low to medium, with a declared 96.07% behind it. Over a session it reads as a slow decline with occasional steps back up, a noticeably calmer ride than anything with a multiplier tower in it.

The floor of the slider is higher than on most Endorphina cards, because 40 fixed lines have to be paid for on every spin, and that matters if you came to stretch a small balance across an evening. Set it once, at the start, while the arithmetic is still cold: after a round goes badly the slider becomes a reaction.

Buying the round: when it earns its price and when it burns you

You are probably here for the buy price, so it sits in the table above, near the top of the page. What the table cannot tell you is when pressing that button is a reasonable idea.

It is reasonable when you have decided how many rounds you will buy before the first one, and when the price of that plan is money you were going to feed the reels anyway. On a card rated low to medium the bought round pays back in pieces, so the plan has to survive a purchase that returns half its cost and no drama with it. Endorphina publishes one return figure for the game and nothing separate for a bought round, so what the button buys you is the round arriving now: time on the clock, and that is the whole of it. It stops being reasonable the moment the second purchase is a reaction to the first one paying nothing, which is how a session with a budget turns into a session without one.

One thing about the welcome bonus. The first deposit bonus doubles your money and clears at x35 in slots only, and some games are locked while a bonus is active: the card in the lobby carries a mark when that applies. Look for that mark before you plan a session around this one, because a locked card is a plan that ends at the lobby. Full terms sit on the bonuses page.

What a ceiling of 2000x buys you in the base game

Next to the five figure ceilings on the same shelf, 2000x looks modest, and a review that ranks games by that column alone will mark it down. Read the column differently. A slot only has so much return to give, and a huge ceiling is paid for out of the base game: the money is parked in a screen almost nobody will ever see, and the rest of the session is drier for it. A ceiling this size leaves the money where you will meet it, in line wins and joker stacks, several times an hour.

Read the number the way the paytable means it. The 2000x is counted from the whole spin and not from a line: one stake covers all 40 fixed lines, and the ceiling is what the game can hand back on top of it. Stakes run from 0.4-140 EUR, and the two ends of that slider are two different evenings: at the floor the ceiling is a good night out, at the top it is a sum you would tell somebody about, which is the part nobody mentions when they call this figure modest. What it is not, at either end, is a single lucky line. It is a free spins round where the joker keeps landing in stacks across four rows, the screen pays several lines at once, and the counter climbs there over the whole round.

That is the trade this card offers, and it is the reason it survives on a shelf full of louder machines. If your evening is measured by how often something happens, the ceiling here is a feature. If it is measured by the size of the number you could theoretically hit, the Lucky Streak 3 card from the same studio prints a far larger one and asks you to sit through far more silence for it.

Where to find the Joker Stoker demo

The frame at the top of this page carries a note where other cards carry a playable machine, because Endorphina runs no public practice server for the title. The free version is real and it lives inside the casino. Three moves get you to it.

  1. Open the Hit tab

    The Hit tab of the lobby is where the studio keeps its fruit cards, sorted by how much everyone else is playing them.

  2. Find the card by its cover

    The joker at the furnace is the quickest way to pick this one out of a row of identical cherries and sevens.

  3. Press the demo label

    It runs on play money at whatever stake you set. If a login form comes up in its place, the sign up form takes a couple of minutes and the free mode opens from inside the account.

Play money changes nothing about the paytable, the scatter frequency or the buy prices, so the demo is an honest rehearsal. Spend it on one question: how often three scatters actually arrive at your stake. Everything else about this game you can read off the table above, but the wait between rounds is something you have to sit through to judge.

One house rule lands on this card harder than on anything else in the tab, and it is the buy menu that does it. Those prices are read off the slider: raise the stake and the cost of the same three doors rises by exactly the same factor, so the cheap door at a small stake is the expensive door at a large one. Bonus money makes it a second sum to do, because it sits on its own balance until the wagering closes, and the button spends whichever balance the game is running on. The rest of the house arithmetic is on the bonuses page, and the races that score free spin triggers are on the tournaments page.

Same studio, same fruit, three different evenings

Endorphina keeps several fruit cards in the Hit tab, and they are genuinely different machines under the identical symbol set. Lucky Streak 3 strips the game back to three reels and a handful of lines, with a headline ceiling far above this one and nothing at all to wait for in between. Joker's Jewels from Pragmatic Play keeps the joker and drops the bonus entirely, on a fraction of the lines, which makes it the cheapest card of the three to sit at.

This one earns its place when you want the fruit set with a round attached and a stack that pays across four rows. The three reel version is the pick for speed and a headline number. The Pragmatic card is what remains when the stake has to be tiny and the session short. The other cards that sell their bonus round outright are listed on the Vavada slots page.

Is the joker worth your evening?

  • What works
  • The stacked joker across four rows is the rare wild that changes a whole screen at once
  • Free spins are triggered and buyable, and the buy menu prices its three doors level
  • Volatility low to medium keeps the balance moving, so a session lasts as long as you meant it to
  • RTP 96.07% is respectable for a machine that also gives you a round to play
  • What to keep in mind
  • The 2000x ceiling is small on this shelf, so nobody will ever screenshot a win from here
  • The bonus round has no multiplier of its own: it is the base game with free stakes
  • The stake floor of 0.4-140 EUR is higher than on the studio cards with fewer lines
  • A buy button on a game this calm is a temptation with no upside, and it is one click away at all times

If you have spent an evening on a slot that promised you a five figure multiplier and delivered forty minutes of nothing, this card is the correction. It hands back small wins, opens a round often enough to matter, and never pretends the top prize is coming. That is what you are actually buying with a stake here: 96.07% handed back in line wins you meet several times an hour, a joker that can light four rows at once, and a round whose spins cost nothing once you are inside it, whether you waited for the scatters or paid the price in the table above.

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