Fire in the Hole 2 Slot Review
Nolimit City are known for thinking outside the box, and their mining-themed sequel Fire in the Hole 2 continues to prove that reputation with genuinely innovative mechanics. Building on the original’s foundation, this 2024 release refines the collapsing mine formula with enhanced features including Upgrade Crystals, xSplit symbols, and a significantly higher max win potential. The result is a sequel that delivers familiar gameplay with purposeful alterations—not a tremendous evolution, but a superior game that caters to high volatility enthusiasts willing to chase big wins.
Base Game & Features
Fire in the Hole 2 operates on a 6-reel setup with 3-6 variable rows, starting each spin with 486 payways that expand significantly through gameplay mechanics. The grid can expand to a maximum of 46,656 payways at 6 rows, with winning symbols removed to allow cascading replacements. This cascading system is central to the game’s appeal—each collapse creates opportunity for symbol stacking and multiplier builds.
Core Mechanics: Collapsing Mine & Explosive Features
The Collapsing Mine Feature forms the foundation of Fire in the Hole 2’s gameplay. Each spin begins with 3 active rows, but can activate up to 6 total as collapses cascade through winning combinations. When winning symbols clear the board, new symbols drop to fill the empty spaces, creating chains of potential wins on a single spin.
Layered across this system are several powerful modifiers. The xBomb Wild Multiplier substitutes for any symbol except the Bonus, removes adjacent symbols (except Bonus), and crucially increases the win multiplier for any subsequent collapses that follow. This mechanic adds genuine tactical depth—landing xBombs early in a collapse chain can exponentially boost the final win.
xSplit symbols double all symbols on their row, with counts reaching 8+ displayed as multipliers. This feature can rapidly escalate win potential mid-cascade, particularly when combined with wild builds. The Wild Mining Feature activates when 3 or more identical symbols align horizontally or vertically (outside of standard winning combinations). This triggers an award of 1-4 wilds placed strategically in central positions, depending on how many symbols aligned.
Buried Features add an extra layer of unpredictability—dirt symbols may contain hidden Wild, Split, or Bonus symbols that trigger immediately upon landing on active reels. These hidden features become significantly more frequent when the xBet feature is active.
The xBet Feature: A High-Stakes Acceleration
Fire in the Hole 2 offers the xBet feature, which costs 250% of the base bet when activated. This enhancement guarantees at least 1 Bonus symbol lands on the last inactive row of each spin, dramatically shortening the gap to bonus activation. Without xBet, Free Spins trigger roughly once every 211 spins—a long dry spell for budget-conscious players. With xBet enabled, that frequency improves to 1 in 49 spins, a meaningful acceleration for engaged players seeking regular bonus access. All dirt positions are also cleared from the base game when xBet is active, streamlining the mechanic and increasing feature triggers.
Bonus Rounds & Free Spins
The Lucky Wagon Spins bonus round represents a significant evolution in Nolimit City’s bonus design. Triggered by landing 3, 4, or 5 Bonus symbols—which activate 2, 3, or 4 starting rows respectively—the feature begins with 3 spins. Unlike standard free spins, every coin that lands in the reel area resets the spin counter to 3, theoretically allowing the bonus to persist indefinitely if coin symbols land consistently. Each coin awards a bet multiplier prize immediately, and coins interact with a top-row collection of enhancers.
The Lucky Wagon Enhancers—Beer, Dwarf, Dynamite, and Collect Chests—activate when coins land directly below them. This triggers special effects that can build or amplify wins across the bonus round. The genuine innovation, however, comes from Upgrade Crystals, a feature appearing on the 7th reel. When a coin lands on a row containing an upgrade crystal, that coin’s enhancer becomes permanent for the remainder of the bonus round. This persistence mechanic is what elevates Fire in the Hole 2 beyond its predecessor—stacking multiple active enhancers can create explosive win potential, particularly when combined with xBomb multipliers and xSplit doubling.
Nolimit City also offers Bonus Buy options at 70x, 200x, and 600x the bet, each guaranteeing different scatter counts and starting row configurations. These feature buy options carry slightly adjusted RTPs ranging from 96.10% to 96.42% depending on which tier is selected, offering flexibility for players who prefer to guarantee bonus access rather than rely on random triggers.
Volatility & Win Potential
Fire in the Hole 2 operates at extreme volatility—10 out of 10 on Nolimit City’s scale, with a hit frequency of approximately 25.09% (roughly 1 in 3.98 spins). This means players will experience non-winning spins on roughly 75% of standard plays, with wins concentrated during feature activations or multiplier cascades. The RTP sits at 96.07% in standard mode, climbing to 96.09% with xBet active and reaching 96.10%-96.42% depending on bonus buy tier selected. Regional variations exist at 94.08%, 92.07%, and 87.05% for specific jurisdictions.
The maximum win potential stands at 65,000x the stake, achievable during the Lucky Wagon Spins bonus round with multiple enhancers active and upgrade crystals stacking their effects. This max win occurs with a frequency of approximately 1 in 17 million spins—better than average for extreme volatility releases. For high volatility chasers, this headline figure is genuinely attractive; for casual base game players, the extreme volatility means long dry spells between wins are guaranteed. The game is fundamentally built for players willing to weather losing sessions for explosive potential.
Our Honest Verdict
Fire in the Hole 2: 8.6/10
Fire in the Hole 2 is a purpose-built extreme volatility slot that succeeds on its own terms. Nolimit City have refined rather than revolutionised—the mining theme, collapsing mechanics, and core gameplay remain recognisably familiar—but the tweaks make it much more effective than the original. The Upgrade Crystals system alone provides a meaningful evolution beyond simply increasing the max win; it creates actual strategic layers to bonus gameplay.
The game’s standout positives are substantial. Sharply designed visuals with amazing animations when TNT wilds explode, coupled with fantastic audio and immersive sound effects, create an engaging atmosphere. The 65,000x max win is a genuine highlight, and the Upgrade Crystals feature genuinely delivers a superior experience compared to the original. For fans of the original Fire in the Hole, this sequel will more than satisfy—it’s got more of the same with purposeful improvements.
However, honest limitations exist. The extreme 10/10 volatility means players should expect significant losing sessions; this isn’t a game for those seeking consistent smaller wins or accessible bonus frequency. Without xBet active, the 1 in 211 spin bonus frequency can feel punishingly rare for extended play. The sequel isn’t revolutionary—visuals and core gameplay remain largely unchanged from the original, which may disappoint those expecting major technological leaps. Nolimit City have been quite reserved with their evolution, choosing refinement over innovation.
Ultimately, Fire in the Hole 2 targets a specific audience: high volatility enthusiasts familiar with Nolimit City’s style who want more complex bonus mechanics and higher win potential. Those new to the developer or preferring balanced, feature-friendly gameplay should look elsewhere. For extreme volatility chasers? The Upgrade Crystals make this a compelling offering worth exploring.
Fire in the Hole 2 FAQs
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What is the RTP of Fire in the Hole 2?
The RTP of Fire in the Hole 2 is 96.07% in standard mode, with xBet increasing it to 96.09%. Multiple RTP variations are available including 94.08%, 92.07%, and 87.05% for regional markets. Bonus buy options offer RTPs ranging from 96.10% to 96.42% depending on the tier selected. -
How volatile is Fire in the Hole 2?
Fire in the Hole 2 has extreme volatility, rated 10 out of 10 on Nolimit City’s volatility scale. This means wins are far less frequent but potentially much larger. The 25.09% hit frequency (approximately 1 in 3.98 spins) confirms this—players will experience non-winning spins roughly 75% of the time, making this a high-risk, high-reward game. -
What is the maximum win in Fire in the Hole 2?
The maximum win in Fire in the Hole 2 is 65,000x the base bet, achieved during the Lucky Wagon Spins bonus round with multiple enhancers and upgrade crystals active. This max win occurs with a frequency of approximately 1 in 17 million spins, which is better than average for extreme volatility slots. -
What are the main features of Fire in the Hole 2?
Fire in the Hole 2 features include: Collapsing Mine (expanding grid mechanic from 3-6 rows), xBomb Wild Multiplier (substitutes symbols and removes adjacent ones), xSplit (doubles symbols on its row), Wild Mining (awards random wilds for aligned symbols), Buried Features (hidden wilds/splits in dirt symbols), Lucky Wagon Spins bonus round, and xBet feature (costs 250% of base bet for guaranteed bonus symbols). -
What is the Lucky Wagon Spins feature?
Lucky Wagon Spins is triggered by landing 3, 4, or 5 Bonus symbols, which activate 2, 3, or 4 starting rows respectively. The feature begins with 3 spins that reset whenever coins land in the reel area. Top-row enhancers (Beer, Dwarf, Dynamite, Collect Chests) activate when coins land beneath them. Upgrade Crystals on the 7th reel make active enhancers persistent for the remainder of the bonus round. -
What does the xBet feature do?
The xBet feature costs 250% of the base bet and guarantees at least 1 Bonus symbol lands on the last inactive row each spin. Without xBet, bonus frequency is approximately 1 in 211 spins. With xBet active, this dramatically improves to 1 in 49 spins, making bonus access significantly more frequent. xBet also removes all dirt positions from the base game. -
How many reels and payways does Fire in the Hole 2 have?
Fire in the Hole 2 features 6 reels with 3-6 variable rows and up to 46,656 payways. The base game starts with 486 payways using 3 rows, expanding through gameplay mechanics including xBombs, xSplits, and wild features that increase active rows and winning combinations. -
When was Fire in the Hole 2 released?
Fire in the Hole 2 was released by Nolimit City on 20 February 2024. It is the sequel to the original Fire in the Hole, featuring evolved mining-themed mechanics with a higher 65,000x maximum win (compared to 60,000x on the original) and enhanced features including Upgrade Crystals and xSplit symbols.
