Fire in the Hole xBomb: Slot Overview

Still riding a relentless streak, developer Nolimit City turned its attention to one of the most common—some would say overused—slot themes: mining. True to form, Nolimit City wasn’t interested in sticking to a familiar blueprint. Instead, they ripped it up and let the team build something with its own identity. On paper, the core specs may not look revolutionary. In play, though, Fire in the Hole xBomb feels like a tough, straight-talking beast that can erupt without warning—much like a bundle of dynamite, or the dwarf who shows up at pivotal moments during the action.

The action takes place on a layout built with 6 reels, 3 rows, and 486 ways to win. This is only the upper portion of the full grid, since 3 dormant rows sit beneath the active area, initially filled with empty spaces. Visually, it can seem a touch more restrained than the typical Nolimit release. There’s no prison grit, punk edge, or brutal wasteland vibe setting the tone. Instead, a weighty, trudging soundtrack builds tension as lantern light flickers across an old mine shaft held up by timber beams—giving little away about how wild things can get once Fire in the Hole xBomb starts detonating. Shut your eyes and it’s easy to picture caverns packed with hulking, sweat-soaked dwarves cracking rock for treasure or hammering metal into weapons.

With bets ranging from 20 p/c to $/€50 per spin, Fire in the Hole xBomb is another Nolimit City title dealing in serious figures. The big warning sign is the volatility, scored at 10 out of 10—so not merely high, but extreme. As usual, the RTP varies, so it’s worth checking before you grab your imaginary pickaxe; the preferred setup runs at 96.06%. Other noteworthy numbers include a hit rate of 1 in 4 and substantial upside—covered later in the verdict.

Fire in the Hole xBomb awards wins for matching symbols landing left to right from the first reel, regardless of row. The paytable begins with 5 framed 9-K symbols, notably leaving the usual A out of the lineup. After that come the premium icons: pickaxes, rope, boots, a satchel, and a lantern—landing 6 of a kind on premiums returns 1.75 to 7.5 times the stake.

Fire in the Hole xBomb: Slot Features

Fire in the Hole xBomb is the first game to introduce Nolimit City’s new xBomb feature. Alongside that, the full feature set includes Collapsing Mine, Wild Mining, Lucky Wagon Spins, plus feature buy access where regulations allow.

The Collapsing Mine feature is best explained first and functions as a more involved cascade system. Every spin begins with 3 active rows, and whenever a collapse happens, an additional row becomes active—up to 6 total. Collapses can be triggered by winning combinations, by an xBomb Wild explosion, or via the Wild Mining feature. Winning symbols are removed before the next collapse, and the remaining symbols drop down. This opens gaps for new symbols to fall into, which can result in back-to-back wins. Once all 6 rows are active, 46,656 ways are available.

Unfortunately, there’s no link between xBombs and the Tom Jones classic. Moving on: xBomb Wild symbols can replace any symbol except scatters to help form wins. When xBomb Wilds detonate, they clear all adjacent regular pay symbols and raise a win multiplier by x1 for the next collapse. xBomb Wilds explode whenever there is a win, even if the Wild wasn’t part of that winning line. xBombs can also explode to force a collapse when there is no win, provided Wild Mining (explained below) does not trigger.

Wild Mining activates when 3, 4, or 5 identical symbols land in a horizontal line, but no winning combination is formed. The triggering symbols are removed, and 1, 2, or 3 wilds, respectively, are placed into the center of that alignment. Then, every other position in the active area explodes except scatter or wild symbols, and a fresh collapse is initiated.

The main attraction is the Lucky Wagon Spins bonus feature. It runs on a separate grid, and the number of starting rows depends on how many scatters triggered the bonus—so 3, 4, or 5 scatters awards 2, 3, or 4 starting rows, respectively. You begin with 3 spins, and this counter resets to 3 each time a coin symbol lands in the game area. Across the top of the grid, 6 carriages appear on every spin, each showing different prizes and modifiers. When a coin lands, the prize or modifier directly above it is granted. This can be:

• A coin value ranging from x1-x100.
• A multiplier applied to all coins below it.
• Dynamite symbols, which add a value to the coin, unlock blocked row positions and activate collect chests on the bottom row.
• Bag symbols collect all coins on the corresponding reel and deposit them on the triggering coin.
• Chest symbols collect all values on the reel and clears all occupied positions in the reel area except the dwarf symbol.
• Dwarf symbols collect all values on the reel and place them on the triggering coin. It will do this on each following spin.

When collect chests are active on the bottom row, they gather the value of every coin above them on each spin. There’s a lot going on, so it’s easiest to view this as a massively expanded hold-and-win feature packed with modifiers.

For anyone eager to bypass the base game and jump straight into the bonus, Nolimit has included a feature buy. There are 3 choices priced at 60x, 157x, or 500x the bet. In return, the game awards 3, 4, or 5 bonus symbols and ups the RTP to 96.07%, 96.2%, or 96.96%, respectively.

Fire in the Hole xBomb: Slot Verdict

Following a huge start to 2021 with releases like San Quentin xWays and East Coast vs West Coast, Nolimit City has stayed flat-out by delivering yet another heavy hitter. This is an extremely volatile, high-ceiling game that further reinforces Nolimit’s status as a major force in the gambling scene. It’s easy to assume that kind of run has to slow down eventually—that no studio can keep landing hits indefinitely.

Fire in the Hole xBomb suggests that slowdown isn’t happening yet, as the team’s creativity keeps boiling over and throwing down another gauntlet to the competition. For starters, credit to Nolimit City for making the mining theme feel alive again. With a strong audio-visual package, big potential, and clever mechanics, Nolimit has produced a mining experience that stands apart. It says a lot about a studio’s design chops when it can refresh a theme this straightforward while also building distinctive worlds elsewhere.

Regarding the new mechanic, xBomb Wilds fit the mining setting perfectly and echo xNudge Wilds in the way they generate multipliers while heavily influencing larger payouts. Seasoned players will also notice Lucky Wagon Spins carries some Money Train 2 DNA. It may feel less frantic without the constant gunfire, but Lucky Wagon Spins compensates with a bigger reward profile. You might begin with only three spins, yet the feature can escalate fast like a volatile freight train. Special symbols and Collect Chests are key to squeezing maximum value from the bonus, which, when pushed to the limit, can reach 60,000x the stake. Importantly, the max win can land in any phase of the game, including the base game, though it’s more likely during Lucky Wagon Spins triggered by five scatters.

There’s little doubt Fire in the Hole xBomb will attract plenty of players. Mining slots remain popular, and there’s no shortage of hardcore fans ready to test themselves against whatever monster Nolimit City unleashes next. Just don’t mistake this for a relaxed ride through a softly lit tunnel. This is the kind of creaking old pit that could cave in on you at any time. There’s no canary down here, put it that way. Still, it’s also a mine loaded with riches for those who can handle the pressure.

Don’t Miss

Still in the mood for mining? Then check out Nolimit City’s 2022 sequel Misery Mining, designed to deliver a phenomenal audiovisual experience and strong potential.