Game ThemeGoldmine |
ProviderYggdrasil |
VolatilityMedium-high |
RTP96.8% |
Max Multiplier |
Min Bet0.10 CHF |
Max Bet50.00 CHF |
Dwarf Mine sends Yggdrasil's mining character beneath the ground in a digging machine that holds five reels. Its ordinary window has four visible rows and 1,024 ways to form combinations, while bonus drills can expand the display. The central idea is physical growth: an added row changes the number of available ways and exposes room for collectible crystals.
The game's ways system considers matching symbols on consecutive reels rather than selecting fixed paylines. Card-suit icons form the lower-paying group, and mining equipment such as shovels, axes, helmets and lanterns forms the higher-paying group. The lantern sits at the top of that ordinary symbol hierarchy, while coloured crystals have a separate role in a collection feature.
A Bonus drill can land on reels one, three and five and expands the window by one row. Each affected reel can gain as many as three additional rows, taking the configuration toward a maximum of five by seven and 16,807 ways. This is visible as a change to the machine rather than merely an icon announcing a later bonus.
Three Bonus symbols on reels one, three and five start the standard free spins. That route awards ten spins on the fully expanded window, placing the extra rows in view from the beginning of the feature. The growth mechanism therefore matters both during an ordinary spin and as the established layout for this bonus sequence.
Expanded rows can reveal green, yellow, blue and red crystals. Collecting five of the same colour activates Collection Free Spins, a separate five-spin route with particularly high-ranking crystal symbols. The collection display at the side of the grid tracks progress, so a crystal's importance is cumulative rather than limited to the single spin on which it appeared.
Within the swiss online casino selection, Yggdrasil's Dwarf Mine is defined by the link between drilling, expanded rows and two bonus triggers. One trigger requires the three Bonus drills on specified reels; the other requires a set of five matching crystals. Their resulting free-spin rounds differ in length and symbol emphasis, even though both grow from the same mine setting. Expansion is the bridge between both routes: the drill physically creates extra space, while matching crystals found in that space build a different condition. The display beside the reels makes that longer collection process observable.
The reels are fitted inside a cartoon-style hydraulic digging machine, with a dwarf operating its lever to the right. As the display grows and contracts, the machine supplies a visual reason for the change in reel height. The underground setting includes small objects embedded in the rock, turning the space around the symbols into a cross-section of the mine.
Card suits occupy the simpler, lower-paying part of the symbol set. Their compact shapes contrast with the larger illustrated mining tools, which include shovels, axes, helmets and lanterns. The lantern is the highest-ranking member of this ordinary tool group, so the two visual families correspond to different places in the pay hierarchy.
The Bonus drill is identifiable by its mechanical purpose as well as its position. It appears on the first, third and fifth reels and causes a row to be added when it lands. That movement immediately changes the geometry of the play area; the symbol's visual meaning is confirmed by the machine extending beneath the visible reel window.
Four crystal colours, green, yellow, blue and red, create another layer of recognition. These objects can appear in the newly exposed rows, and the side display records how many matching crystals have been gathered. Their colour is functional information because five of one kind, rather than five mixed gems, is the collection condition.
The machine and the dwarf animate the growth of the grid, while the buried details and mineral colours keep the mining theme present around the reels. The soundtrack and mechanical sound effects reinforce the drilling action described in reviews. These flourishes have a direct relationship to the rules whenever the reel height changes or a crystal is added to its counter.
The Bonus drill, the expanded rows and the collectible crystals provide the main visual landmarks of Dwarf Mine. Reading them as different objects matters: a drill alters the window and can help start ten free spins, whereas the coloured crystals build toward the five-spin collection route. The machine's change in height and the side collection display keep these two processes visible at different places around the reels. The crystal counter is positioned outside the reel symbols, so it represents progress across appearances rather than another ordinary paying icon. By contrast, the drill's effect can be observed as soon as the machine extends.
The base window uses five reels with four visible rows and 1,024 ways. A matching-symbol connection across consecutive reels is assessed through the available positions, rather than along one of a set of fixed lines. The number of positions can change in this game, making the current height of the digging machine relevant to how many ways are available.
A Bonus drill landing on an eligible reel adds one row to the window. Drills are restricted to reels one, three and five, and those reels can grow by up to three rows each. When the machine reaches its full configuration, the grid can show five reels with seven rows and 16,807 ways, a direct consequence of the added positions.
The drill is also part of the standard free-spin trigger. A set of three Bonus symbols on reels one, three and five awards ten free spins, played on the fully expanded configuration. The symbol thus has an immediate effect when it extends a reel and a second, conditional effect when the qualifying set appears together.
The additional rows may contain crystals in four colours. A side counter shows the collected stones, and five of the same colour start Collection Free Spins. A green, yellow, blue and red mixture does not satisfy that rule; the collection is tied to one colour. This gives the expanded area a purpose beyond increasing the number of possible symbol connections.
Collection Free Spins award five spins and introduce a particularly high-ranking crystal symbol set. This route differs from the ten-spin Bonus-drill route in both its entry condition and its symbol emphasis. Its collection begins with crystals exposed by growing reels, and the side display makes the five matching stones of one colour visible as a separate condition from the simultaneous Bonus drills.
The two paths can be followed in chronological order without conflating them. A drill first changes the machine and may help complete a three-reel Bonus set; the enlarged rows can then reveal crystals for a separate colour collection. The resulting free-spin award depends on which condition is met: ten spins from the drill set or five from five matching crystals. The ten-spin route begins on a fully expanded window, whereas collection requires five stones of one colour. The latter route also introduces a separate high-ranking crystal set for its five spins, giving the gathered stones a further role after the counter fills.
Dwarf Mine makes the size of its reel window part of the game rather than a fixed backdrop. The hydraulic machine and its dwarf operator give a physical form to the extra rows, while the ways count changes with the expanded positions. Its mining theme is therefore expressed by a rule that can be seen unfolding on the grid.
The ordinary symbol set establishes a clear contrast between card suits and illustrated tools. Lanterns lead the tool group, but the symbols that define the bonus flow are the drills and coloured crystals. This separates the ranking of regular paying icons from the objects that modify the game state or complete a collection.
The Bonus drill has an unusually direct connection to both setup and outcome. It can extend an eligible reel during the base game, then a qualifying group on reels one, three and five starts ten free spins on a fully grown window. The standard bonus can thus be understood as a continuation of the same expansion idea shown in ordinary rounds.
Crystal collection supplies a second rhythm. New rows create places where coloured stones can appear, and the side display makes progress toward five of one colour visible. The five Collection Free Spins then change the symbol emphasis toward valuable crystals, so this route is defined by what has been gathered rather than by three simultaneous drills.
These two triggers are related but operate separately. One checks Bonus symbols on specified reels in the same spin; the other tracks matching colours across collection progress. Their ten-spin versus five-spin awards follow different sequences, so a drill that extends the machine need not complete either trigger on its own; the relevant group or collection condition still has to be reached.
The most distinctive aspect of Dwarf Mine is the chain from drilling to newly exposed space to another possible objective. Animation, background details and the tool symbols all reinforce the underground setting, while the counters and changing reel height communicate the mechanics. The game remains coherent when its two free-spin paths are read as different consequences of that growing mine. The interplay of immediate expansion and accumulated colour gives the mine two timescales. A drill changes the present window, while a matching crystal contributes to a later threshold displayed alongside the machine.
How does the Dwarf Mine grid grow?
The ordinary window has five reels, four rows and 1,024 ways. A Bonus drill on an eligible reel adds a row, and reels one, three and five can each gain up to three rows. At full expansion, the machine reaches seven rows and 16,807 ways; the changing height is part of the feature itself.
How are the standard free spins triggered?
Three Bonus symbols on reels one, three and five start the standard feature. It gives ten free spins on the fully expanded window. The same drill symbol can enlarge an eligible reel when it appears, so its immediate effect on the grid and its role in the three-symbol trigger are related but distinct.
What starts Collection Free Spins?
Crystals can appear in rows exposed by expansion. Gathering five of the same colour starts Collection Free Spins and awards five spins, with a special set of high-ranking crystal symbols. The side display tracks the collection; stones of mixed colours do not complete one colour's requirement.
What is the difference between the two free-spin routes?
The standard route checks Bonus drills together on reels one, three and five and awards ten spins. The collection route counts five crystals of a single colour and awards five spins with crystal symbols emphasised. They have different triggers and lengths even though the expanding mine connects their visual setting.
Which regular symbols rank highest?
Card-suit icons are the lower-paying group, while shovels, axes, helmets and lanterns make up the higher-paying mining tools. The lantern ranks highest among those ordinary tools. Bonus drills and coloured crystals should be read separately because they control expansion or collection rather than simply filling that hierarchy.
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