Game ThemeGoldmine |
ProviderBF Games |
Volatility |
RTP94.03% - 94.27% |
Max Multiplier |
Min Bet0.30 CHF |
Max Bet3'000.00 CHF |
Cave of Gold is a video slot with 5 reels, 3 rows and 30 paylines, developed by BF Games and released on 23.06.2022. You accompany a gold-hungry goblin deep into an underground mine where everything revolves around shining treasures, Nitro potions and special Wild mechanics. The slot is a direct continuation of Cave of Fortune: the same goblin, the same mine, but with expanded features that make the experience more structured and technical.
At the center is a transparent 5x3 grid with 30 fixed paylines, set inside a glowing gold mine. Above each reel you see vials / Nitro meters that fill up during gameplay with Nitro symbols. This display is not just visual decoration – it is the core of a key mechanic. When a vial is filled, the corresponding reel becomes a Persistent Wild Reel, remaining fully Wild for several spins.
Cave of Gold is optimized for modern devices and runs on JS and HTML5 technology. The bet range goes from 0.30 CHF to 60.00 CHF per spin, offering a solid playing framework. It is a high volatility slot with an RTP of 94.24% (configurable ranges). The maximum win is capped at x500.00 the stake, mainly achieved through bonus features such as the Grand Reward in free spins mode.
The story is simple: you are inside a fantasy mine where a goblin tirelessly digs for gold. Every spin feels like another strike of a pickaxe into the rock. Nitro vials above the reels, Persistent Wilds, Bomb Wilds and the Grand Nitro Meter together create a kind of “mine management system”. As you spin, vials fill, reels turn Wild, multipliers activate and the free spins round with its Grand Reward of x500 tops it all off.
In short, Cave Of Gold combines a classic goblin mine setting with a structured mechanic based on collection elements (Nitro), Persistent Wild Reels, multipliers and a multi-stage free spins feature, including the Grand Nitro Meter and the Explode feature. Everything is designed so you can clearly track your progress through the mine via the vial levels and the Grand Meter.
The presentation of Cave of Gold is strongly inspired by a classic fantasy mine. You look into a dark cave where golden reflections, rocky walls and mining elements define the scene. The 5x3 grid is kept transparent so you can still see the cave background clearly during spins. The colour palette mixes warm gold tones with cool blues and greens, creating a contrast between cold rock and glowing metal highlights.
At the centre is the goblin, already known from cave of fortune. He appears as the Wild symbol and represents the whole identity of the slot: slightly exaggerated with typical fantasy expression, but rendered in clean, modern 3D. The other premium symbols such as shovels, pickaxes, lanterns, horns, mine carts and gold dispensers are detailed but never cluttered, making them easy to recognise at a glance.
The animations are smooth and support every action on the reels. When Persistent Wilds activate, an entire reel visibly turns into a Wild, Nitro bottles fill counters above the reels, and Bomb Wilds from the Explode feature “jump” into position in a clearly readable way. Although the mine is essentially a static setting, it feels alive thanks to subtle motion like flickering torches and shimmering gems.
The symbol set in Cave Of Gold is clearly split between low-value card symbols and thematic premium symbols, along with several special symbols with specific functions. Payouts are based on stake multipliers, especially for 5-symbol combinations.
Key symbols and functions overview:
This creates a system where standard line wins combine with additional layers such as Wild reels, multipliers and bonus triggers, adding more depth to the gameplay.
Audio-wise, Cave Of Gold combines modern slot sounds with thematic cave ambience. A upbeat soundtrack plays in the background, lightly fantasy-themed without becoming intrusive. During spins, the audio becomes more intense when Nitro bottles appear, Persistent Wilds activate or Scatter symbols land.
Wins are highlighted with clearly differentiated sound effects depending on their size, making it easy to understand what is happening even without looking closely. During bonus features like Explode Feature or Grand Reward, the music becomes more pronounced to emphasise key moments. Overall, reel sounds, short jingles and background music blend cleanly into the mine setting.
Cave Of Gold thrives on a finely tuned system of Nitro collection, expanding Wild reels, multipliers, free spins, and an overriding collection bar in the bonus game. The foundation is a 5x3 layout with 30 fixed paylines, where wins are calculated from left to right. Key focuses include the Potion Counter, Persistent Wild Reels, and the multi-stage Free Spin round with Grand Nitro Meter.
Above each reel is a Potion Counter, represented as a vessel or bottle. Each time a green Nitro bottle lands on the corresponding reel, the counter is filled. Thanks to Single, Double, and Triple Nitro, the counter can increase by 1, 2, or 3 units. If a counter reaches the value of 3, the entire reel beneath it transforms into a Persistent Wild Reel for the next 3 spins.
An important detail: if you activate another Persistent Wild Reel while one or more are already in play, the counter for existing Wild reels is reset to 3 spins. This way, multiple reels can be wild simultaneously without losing the initial reel immediately. The Nitro counters and active Persistent Wilds are saved separately for each bet level, providing a very clear structure to the game.
Once a reel's Potion Counter is full, it transforms into a Persistent Wild Reel. For the next 3 spins, the entire reel consists only of Wild symbols. If a second or third counter fills up simultaneously, the process repeats, and previously activated Wild reels also receive 3 remaining spins again.
It gets particularly interesting when multiple Wild reels are active at once. This triggers multipliers on all wins:
If you manage to activate all 5 reels as Persistent Wild Reels, a fixed win of x200 the bet is triggered. Afterward, all Persistent Wilds disappear, and the counters reset. Another advantage of this mechanic: Active Persistent Wilds are carried over into Free Spins and vice versa. This means if you enter the Free Spin round with active Wild reels, they remain in place.
The Treasure Chest symbol acts as a Scatter and uses a Pay-Anywhere mechanic. This means the chest does not need to land on a specific line to trigger its effect. The following combinations are possible:
During Free Spins, alternative reels are used, designed to offer an increased chance of combinations. Additionally, Free Spins can be re-triggered: landing 2, 3, 4, or 5 Scatters during the bonus round awards an additional 5, 15, 20, or 25 Free Spins, which are added to the current round. Existing Persistent Wild Reels remain active and can continue to be extended by Nitro bottles.
Exclusively during Free Spins, the Grand Nitro Meter appears above the reels. Every green Nitro bottle that lands during Free Spins fills not only the respective reel counter but also this global Grand Meter. There are two important thresholds:
Nitro bottles thus serve a dual function: they activate Persistent Wild Reels via the Potion Counters in both the base game and Free Spins, while simultaneously feeding the Grand Nitro Meter, which enables Bomb Wilds and the Grand Reward in the bonus game.
Cave Of Gold is a technically sophisticated slot that consistently implements the idea of a goblin mine. The interplay of nitro bottles, potion counters, persistent Wild reels, multipliers, and the free spin round with Grand Nitro Meter creates a clearly recognizable structure: you can see at any time how close you are to the next Wild reel, an Explode feature, or a Grand Reward.
Compared to the predecessor Cave of Fortune, much remains the same: the same basic idea, similar symbols, the same goblin, the identical mine as a setting. The essential difference lies in the random multipliers over several Wild reels and the way nitro bottles act on two levels—once on the reel counters, once on the global Grand Nitro Meter in the free spins. As a result, Cave Of Gold feels like a refined version of the well-known concept with an additional focus on collection mechanics.
The winning potential is technically relatively clearly limited: a Grand Reward of x500 the bet represents a fixed upper limit, and the line payouts of the premium symbols also remain in the single-digit multiplier range, up to a maximum of 1.66x for the goblin and mining cart. Compared to other slots with multi-thousand multipliers, this seems rather moderate. In combination with the multipliers of x2 to x4 and the x200 payout for five Wild reels, however, it creates a coherent system in which a large part of the excitement comes from filling the nitro bottles and activating Wild reels.
In the BF Games slot portfolio, Cave Of Gold is therefore a kind of fine-tuning of the goblin theme. Anyone who knows Cave of Fortune will recognize many elements: the characteristic goblin Wild, the mine ambiance, the nitro potions as a central feature. However, the new variant focuses more strongly on the interplay of persistent Wild reels and a global collection bar in free spins. It is noticeable that the RTP configuration of 94.24% with RTP ranges has a quite technical orientation that clearly stands out from older, static settings.
If you place Cave Of Gold next to other goblin or mine slots from providers like BF Games itself or other studios, many of these titles share typical features: a dark cave background, golden accents, a cartoonish miner as the main character, free spin rounds, and some form of collection mechanic. The big difference here lies in the structure of the nitro systems. While other slots often only offer single Wilds or simple multipliers, Cave Of Gold makes nitro a multi-layered resource: you collect nitro for reels, for the Grand Meter, and for bomb Wild explosions. This gives the game its own identity, even though the theme itself feels familiar.
Recommended alternatives within a similar theme or feature world are primarily slots that also offer 5x3 layouts with around 20–30 lines, free spins with additional collection mechanics, and Wild reels or sticky Wilds. Titles from BF Games with a comparable structure—such as other fantasy or goblin themes—often share:
In a direct comparison, Cave Of Gold stands out above all due to the combination of persistent Wild reels and the Grand Nitro Meter. Many other slots know either sticky Wilds or a collection bar, but not both in this form. In return, the max win limit of x500 is in the lower range, which makes Cave Of Gold a slot defined by its mechanics and mine setting, less so by absolute top multipliers.
Bottom line: Cave Of Gold is a structured goblin mine slot from BF Games that takes over known elements from its predecessor and combines them with new multiplier and nitro systems. Those who appreciate a clear, technically understandable feature set with collection displays and Wild reels will find a compact, clear package here that fits well into the overall offering of similar 5x3 video slots.
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