FIRE!: Cannonballs, Wild Reels and a Global Multiplier

FIRE! is a Backseat Gaming slot played on a 5x5 grid that pays on paylines. Backseat Gaming published its release date as 31 March 2026, and the studio's own description of the game is short: two special symbols, a set of cannonballs on every reel and a global multiplier that ties them together.

The game's identity comes from reels that turn wild. When the FIRE symbol lands, it expands to cover its whole reel as a wild, and the special BOOM symbol does the same. BOOM adds a second job on top, multiplying the global multiplier rather than adding to it.

That combination makes FIRE! a game about building one number over the course of a spin. Most of what follows explains how the pieces feed that number, using only the rules Backseat Gaming has published.

Backseat Gaming lists the RTP of FIRE! as 96.21 %. Only one figure is published, so unlike some of the studio's games there is no list of lower-RTP versions on the game page.

Volatility is rated High. The hit frequency is given as 19.21%, which means roughly one spin in five returns a win of some size and about four in five return nothing.

The max win is 25,000x the stake. The game page writes it in the European style as 25.000, and the figure sits alongside the RTP, volatility and hit frequency in the studio's spec list.

Those three numbers point the same way. A hit rate below 20% with a 25,000x ceiling means long losing runs are part of the design, and the bulk of the return is concentrated in rarer spins where wild reels and multipliers line up.

When the FIRE symbol lands, it expands into a full wild reel. On a 5x5 grid that means one symbol becomes five wild positions, top to bottom, on that reel.

A full wild reel matters more on a payline game than a single wild does, because every payline crossing that reel now has a wild at that point. Two or more wild reels in the same spin multiply the number of lines that can connect.

Backseat Gaming's description places the cannonballs in the same sentence as the FIRE symbol: every reel has between 1 and 6 active cannonballs, which are then added to the global multiplier. The game page does not spell out the exact moment the cannonballs are counted, so the demo is the place to watch which reels' cannonballs reach the multiplier and when.

The global multiplier is the number the whole game revolves around. Cannonballs are its main source: each reel carries between 1 and 6 active cannonballs, and those are added to the global multiplier.

Addition is the key word. Cannonballs build the multiplier step by step, so a reel showing 6 cannonballs contributes six times as much as a reel showing 1. Where several reels contribute, their cannonballs stack on the same total.

As an illustration of the addition rule only, if the global multiplier stood at 4 and a reel added 6 cannonballs, it would move to 10. The game page does not publish a starting value or a cap for the global multiplier, so treat any number like that as an example of the rule, not as a figure from the game.

BOOM is the special symbol, and Backseat Gaming says it lands in all game modes. Like FIRE, it expands into a full wild reel when it lands.

It also comes with a multiplier of x2, x3, x4, x5 or x10, and that value multiplies the existing global multiplier. This is the one place in the published rules where the global multiplier is multiplied rather than added to.

Order therefore matters. As an illustration only, a global multiplier of 10 hit by a x5 BOOM becomes 50, while the same x5 applied to a multiplier of 2 gives 10. The more cannonballs that have already been added before a BOOM lands, the more its multiplier is worth.

With x10 at the top of the BOOM list, one symbol can turn a modest running total into a large one, which is where a 25,000x ceiling starts to look reachable in principle, even if the hit rate says such spins are rare.

Backseat Gaming's page is brief, and several things players search for are not on it. There is no bonus buy listed in the game's specs, no number of paylines and no description of a free spins round or how one would trigger.

The BOOM rule mentions "all game modes", but the page does not say what those modes are. Rather than guess, check anything beyond the rules above in the game's own rules panel inside the demo.

Symbol values are not published either. The paytable in the demo shows what each symbol pays and is worth opening before reading too much into any single result.

The free FIRE! demo on this page uses play credits, so it is the quickest way to see the cannonballs and the global multiplier move without staking anything. Slots are for adults aged 18 and over, and a demo shows how the mechanics behave, not what any future spin will pay.

Keep an eye on three things. First, how many cannonballs each reel shows, from 1 to 6. Second, when they are added to the global multiplier. Third, whether a BOOM lands after the multiplier has already grown, since its x2 to x10 value multiplies whatever total is in place.

Also note how often a spin produces anything at all. With a published hit frequency of 19.21%, a short session will include plenty of empty spins, which is normal for a game rated High volatility.

Other Backseat Gaming titles covered on Slotscritic: Dead Mans Broadside, Kamo Insect Hunter, Moon Dynasty, Hades Domain, Strawberry Land and De Rat Heist.

What is the RTP of FIRE! by Backseat Gaming?

Backseat Gaming lists the RTP of FIRE! as 96.21 %, and only that one figure appears on the game page. Over a very large number of spins that means 96.21% of total stakes is returned as wins, but RTP says nothing about a single session, especially on a game rated High volatility with a 19.21% hit frequency.

What is the max win on FIRE!?

The max win on FIRE! is 25,000x the stake, written as 25.000 on Backseat Gaming's game page. The biggest results come from the global multiplier, which grows as cannonballs are added and is multiplied by the x2, x3, x4, x5 or x10 value on a BOOM symbol, combined with full wild reels from FIRE and BOOM.

How does the BOOM symbol work in FIRE!?

BOOM is a special symbol that lands in all game modes and expands into a full wild reel. It also carries a multiplier of x2, x3, x4, x5 or x10, which multiplies the existing global multiplier. That makes it most valuable when cannonballs have already been added to the global multiplier earlier in the spin.

Is FIRE! a high volatility slot?

Yes. Backseat Gaming rates FIRE! as High volatility and lists a hit frequency of 19.21%, so roughly four spins in five produce no win. The game's top end, a 25,000x max win, depends on wild reels and a growing global multiplier coming together, which happens far less often than ordinary line wins.

Does FIRE! have a bonus buy?

Backseat Gaming does not list a bonus buy for FIRE! on its game page. The published specs cover the RTP of 96.21 %, the 25,000x max win, High volatility and a 19.21% hit frequency, and the described features are the FIRE and BOOM wild reels, cannonballs and the global multiplier.

Can you play the FIRE! demo for free?

Yes. The FIRE! demo on this page runs on play credits, so you can watch FIRE and BOOM symbols expand into wild reels and see cannonballs build the global multiplier without staking money. It is for adults aged 18 and over, and it shows how the rules behave rather than what any spin will pay.