Mine & Melt — merge equal collectors before the smeltdown

Mine & Melt by Quickspin is a four-reel, four-row game with up to 256 ways, Wild Miners, a standard Bonus, a Super Bonus, Merge and Smeltdown mechanics.

What the official source confirms

Quickspin states that the game has three RTP models, but the product page does not print the exact percentages in its readable feature text. The active RTP must therefore be taken from the live game’s help or the exact official sheet version, not inferred from a headline.

The same source documents the layout, feature triggers and buy prices. It does not confirm an NZD stake range or availability in a New Zealand casino.

Wild Miners in the base game

Before the reels stop, reels two to four can randomly become Wild Miner symbols. Each Wild Miner substitutes for normal symbols but not Bonus symbols and carries a multiplier from x2 to x4.

Because the conversion occurs before the final evaluation, record which reels transformed and which multiplier each carries. A Wild Miner animation is not itself a Bonus trigger.

Three lives or four lives

Three Bonus symbols start the standard Bonus with three lives. Four Bonus symbols start the Super Bonus with four. In either version, a new Collector or Smeltdown restores the counter to its starting number.

Collector symbols begin at value two. At the end, each pays its value multiplied by the base bet. The visible value is therefore not a separate currency amount.

When two adjacent Collectors have equal values, a random eligible pair merges. A Smeltdown multiplies every Collector already on the board, and future Collectors also use the accumulated Smeltdown multiplier. Preserve the pre-merge values, selected pair and multiplier state when checking a sequence.

The published buy prices are 60x for the three-symbol Bonus and 330x for the four-symbol Super Bonus where enabled. The provider notes that buys may not be available in every market.

Mobile and evidence checks

On mobile, the four reels, life counter, Collector values and Smeltdown state must remain visible. A support record should include the Game ID, active RTP, wager, feature entry and screenshots before and after a merge.

Crystal Queen’s Coins also collects values but uses different pots and multipliers. The Quickspin guide explains source and configuration checks.

Understanding the 4×4 ways layout

Mine & Melt displays four reels with four visible positions on each reel. With all positions available, the game can provide up to 256 ways. A ways award is traced through matching symbols on consecutive reels rather than through fixed numbered paylines.

For each settled result, record how many matching instances appear on reel one, reel two and onward. Multiply the qualifying counts only across the consecutive reels used by that combination, then compare the outcome with the live paytable. Do not assume every spin uses the maximum number of winning routes merely because the board contains 16 cells.

The Bonus symbol is excluded from Wild Miner substitution. Keep ordinary ways calculations and Bonus-trigger counting in separate fields. A transformed reel can support normal combinations while leaving the number of actual Bonus symbols unchanged.

Three Lucky Swedes and reel conversion

Before the reels stop in the base game, reels two, three or four can be converted into a Wild Miner. Record the pre-stop animation, converted reel number and multiplier shown on that Wild Miner. The first reel is not included in the published “reels 2 to 4” rule.

A Wild Miner substitutes for ordinary paying symbols and carries a value from ×2 to ×4. Use the result history or live help to determine how its multiplier applies to the settled combination. Do not add the printed multiplier to the symbol value or use it on Bonus symbols.

If more than one reel converts, preserve the multiplier on each transformed reel. Do not collapse them into one generic Wild state, because the game calculation may refer to the individual Wild Miners that participated in a way.

Triggering the standard Bonus Game

Three Bonus symbols anywhere on the base grid activate the standard Bonus Game. Save the trigger screen and all three coordinates. Wild Miners cannot replace missing Bonus symbols, so the trigger must contain actual Bonus icons.

The standard feature begins with three lives. Its screen contains only Collector and Smeltdown symbols according to the provider description. Record the opening life counter before the first feature resolution and the initial state of all 16 positions.

Whenever a new Collector or Smeltdown lands, the life counter returns to three. A result without either qualifying new symbol reduces the counter. Track the before and after value on every feature step rather than estimating remaining duration from board occupancy.

Triggering the Super Bonus Game

Four Bonus symbols activate the Super Bonus and start it with four lives. Save all four trigger positions and the four-life opening counter. This is a distinct tier, not the standard Bonus plus one extra arbitrary spin.

New Collector or Smeltdown symbols restore the Super Bonus counter to four. Use a separate worksheet template from the three-life feature so that a reset to four is not mistakenly logged as a one-life increase under the standard rule.

The same Merge and Smeltdown principles apply, but the longer starting counter changes the event sequence. It does not promise a particular number of Collector symbols or a minimum return.

Collector symbols start at two

Quickspin states that Collector symbols have a value of two at the beginning of both bonus modes. Record the displayed value in bet-multiple units. At feature end, every surviving Collector pays its final value multiplied by the base bet.

Do not read “2” as two New Zealand dollars unless the recorded base bet is exactly one NZD and the game’s conversion confirms that interpretation. Keep the board in multiplier units until the final accounting step.

A Collector can later change through Merge or Smeltdown. Preserve its position and value history so the final number can be reconciled with the operations that produced it.

Life-counter accounting

Create one row per feature step with life count before, newly landed symbol, reset condition and life count after. A Collector or Smeltdown resets the counter to the mode’s starting value. A blank or non-qualifying result reduces it by one.

The reset is not an addition of three or four lives to the existing number. It returns the counter to three in the standard Bonus or four in the Super Bonus. If the current counter is two and a Collector lands, the result is three or four according to the mode, not five or six.

The feature ends when no lives remain. Verify that all automatic Merge and Smeltdown operations connected to the final landed symbol have resolved before recording the closing board.

Finding an eligible Merge

A Merge becomes possible when two Collector symbols have equal values and are adjacent. Record the coordinates and values of all eligible adjacent pairs before the operation. Adjacency should be read from the live rule presentation and actual selection rather than extended diagonally without evidence.

If more than one pair is eligible, Quickspin says a random pair is selected. Save the highlighted pair and resulting position. The player does not choose the most favourable merge, and an audit should not substitute another possible pair after the result.

Once merged, the chosen pair is replaced by the merged result shown by the game. Mark the original two Collectors as consumed so they are not included again in the final board sum.

Recording a Merge chain

A new Collector may create an equal adjacent pair. After that pair merges, the resulting value can potentially sit beside another equal Collector and cause another operation if the deployed rules and history show it. Number each action M1, M2 and onward.

For every action, store first coordinate and value, second coordinate and value, destination coordinate and new displayed value. Do not skip from the opening board to the final high-value Collector because the intermediate states prove that values were not duplicated.

If no follow-up merge occurs, stop the chain. Visual proximity alone is not evidence that a second pair qualified or that the game selected it.

Smeltdown on the existing board

When a Smeltdown symbol lands, all Collector values already on the board are multiplied by the Smeltdown multiplier. Capture the multiplier, every pre-effect Collector value and every post-effect value.

Apply the multiplication once for the documented landing event. Do not multiply a Collector again simply because the animation remains visible. The result history should distinguish the event from the persistent multiplier state created for future arrivals.

After the operation, check for equal adjacent Collectors and record any Merge sequence in the order the game displays it. Smeltdown and Merge are separate transformations even when they happen during the same feature step.

Smeltdown and future Collectors

Quickspin also states that future Collector symbols are multiplied by the Smeltdown multiplier. Maintain a cumulative active Smeltdown factor after the first event. When a later Collector lands, record its base value and displayed multiplied value.

If another Smeltdown occurs, save the new operation and resulting active state exactly as shown. Do not assume whether factors add or multiply without the live history; compare the pre- and post-event board and current feature indicator.

The persistent factor explains why a later Collector can arrive above its base value of two. It does not mean previously merged Collectors should be reconstructed from their consumed components.

Ordering Smeltdown and Merge

When one feature step appears to support both mechanics, use the on-screen chronology. Save the landing grid, Smeltdown transformation, eligible-pair highlight and merged result. The order affects which values are equal and therefore which pair can merge.

Do not merge base values before a Smeltdown if the game first multiplies the board. Conversely, do not apply a persistent multiplier twice to the value produced by a completed Merge. Each change requires its own before-and-after evidence.

A compact notation such as S1-M1-M2 can identify one Smeltdown followed by two merge operations within the same step.

Standard feature purchase at 60×

Where enabled, a 60× purchase buys three Bonus symbols and entry to the standard Bonus Game. The provider says the triggering base spin awards at least as many Bonus symbols as purchased, so save the actual result rather than forcing the count to exactly three.

Before confirmation, record base bet, total currency price, active RTP and purchase type. After confirmation, capture the supplied Bonus symbols and three-life starting screen. The 60× price is the debit for entry and does not guarantee a 60× feature award.

Availability can vary by market. A supplier page is not proof that a New Zealand-facing integration offers the control.

Super feature purchase at 330×

The Super Bonus purchase costs 330× and buys four Bonus symbols. Save the much larger confirmation amount and verify that the delivered trigger opens the four-life mode.

As with the standard purchase, the triggering base spin can award at least the purchased number. Record any additional Bonus symbols actually shown, but do not invent an extra benefit unless the game history identifies one.

Keep 330× purchase records separate from 60× purchases. Their costs, trigger counts and starting counters differ, so combining results would make later comparison misleading.

Natural and bought entry evidence

A natural feature begins with one ordinary base-game stake and a grid containing three or four Bonus symbols. A bought feature begins with a purchase confirmation and a generated trigger spin. Mark the entry type in the first row of the feature ledger.

The later Collector, Merge and Smeltdown rules can be reviewed with the same state table. However, a natural trigger is proven by the reel result, while a purchase is proven by the explicit 60× or 330× debit and supplied symbols.

Do not compare one purchased Super Bonus with one natural standard Bonus as though the entry conditions were identical.

RTP evidence without guessing

Quickspin’s product page confirms three RTP models but does not print their exact percentages in the readable feature text. The linked sheet filename indicates model families, yet the exact active percentage should come from the sheet contents or live help.

Record the Game ID and displayed RTP for the tested integration. If the help does not expose it, write “not confirmed” rather than copying a number from a related Quickspin release.

An RTP model is a long-run mathematical configuration. It does not change the observed value of a Collector after the server has displayed that value, and it does not predict when the next Smeltdown will land.

Verified model identifiers and a parallel life-counter example

The three-page supplier sheet was rendered and visually checked on 7 October 2026. It distinguishes these reference models rather than publishing one universal percentage for every operator:

Supplier Game ID	Total reference RTP	Supplier volatility, 1–5 scale
mineandmelt	96.09%	5
mineandmelt94	94.19%	4.5
mineandmelt87	87.15%	3

All three pages list the same €0.20–€100 reference stakes and €1 default. The return panel gives a 60.42% base contribution for each model, with free-game contributions of 35.67%, 33.77% and 26.72% respectively. These components reconcile with their corresponding totals; they do not identify which version a casino launches or give a return specifically for the 60× or 330× purchase. Preserve the identifier when recording a launched help screen instead of choosing a percentage from the rounded PDF filename.

A reset replaces the counter; it does not stack another allowance

Imagine the same sequence of qualifying and non-qualifying results in the two modes. This worksheet uses a made-up chronology to test the reset rule, not to predict which symbols will land.

Illustrative event, after resolution	Standard Bonus lives	Super Bonus lives
Feature opens	3	4
No new Collector or Smeltdown	2	3
Another non-qualifying result	1	2
A new Collector lands	3	4
Another non-qualifying result	2	3
A Smeltdown lands	3	4

At the Collector row, the standard counter changes from one to three, so the visible difference is two. The Super counter changes from two to four, also a difference of two. Neither row adds the starting allowance to the remaining lives. A record showing four or six at that stage would be applying addition where the published mechanism describes restoration.

The final Smeltdown row likewise restores the appropriate mode counter once. Its multiplication of Collector values belongs in another column. If a merge animation follows, preserve the consumed pair and resulting symbol without adding another life reset merely because another animation occurred. The qualifying landed event and the later value transformations are different records.

When reviewing a real round, replace every imagined row with the actual counter, landed symbols and server history. A list of final Collector values cannot reconstruct the feature’s duration on its own, and the larger starting allowance cannot establish a minimum payout.

Calculating the closing feature total

At the end of the Bonus or Super Bonus, list every surviving Collector and its final displayed value. Add those values once, include any separately recorded award only if the history identifies it, and multiply the documented Collector sum by the base bet.

Consumed Collectors from a Merge must not remain in the closing list. Their value is represented by the merged symbol. Likewise, a pre-Smeltdown value must not be added beside its post-Smeltdown replacement.

Compare the calculated account-currency result with the server’s feature total and account ledger credit. Save the round ID for any discrepancy.

Worked standard-bonus chronology

Suppose the standard feature begins at three lives. A Collector lands, so the counter resets to three and its displayed value is recorded. A later blank reduces the count to two. Another Collector lands adjacent to an equal value, resetting the counter and producing an eligible Merge.

Record the selected pair, merged result and updated board. If a Smeltdown lands next, reset lives to three, save the multiplier and transform all existing values. Future Collectors then enter under the persistent state displayed by the game.

This example explains bookkeeping only. It does not claim a particular multiplier, merge result, frequency or payout.

Feature ledger template

Use columns for step, lives before, landed symbol, lives after, active Smeltdown state, Collector coordinates and values, eligible pairs, selected Merge, closing board and running subtotal. Add entry type, base bet, RTP and round ID at the feature level.

For each Merge, store consumed IDs and the new Collector ID. For each Smeltdown, store the factor and complete before-and-after value map. This prevents double counting and makes a long sequence reconstructable.

At feature end, reconcile the final board with the ledger rather than relying on memory of fast animations.

Mobile layout validation

On a phone, verify that all four rows and reels, life counter, Collector values and active Smeltdown indicator remain visible. A promotional overlay should not cover the right-side life display mentioned by the provider.

Use completed-round history to inspect merge selection and value changes. A final screenshot may show only one large Collector without revealing which equal pair created it.

If text or colour distinguishes standard from Super Bonus, ensure the mode remains identifiable throughout the feature and in history.

Preparing a support case

Provide the title, Game ID, RTP, base bet, round ID, entry type and starting life count. Attach chronological states for every Collector, life reset, Merge and Smeltdown.

For purchases, include the 60× or 330× confirmation and account debit. For an award dispute, include the final Collector list, calculated bet-unit sum and ledger credit. Passwords and wallet secrets are not required.

Source, artwork and market boundaries

Quickspin’s page supports the four-reel layout, Bonus triggers, lives, Collector start value, Merge, Smeltdown and buy prices. It does not establish New Zealand casino availability, NZD stakes or that either purchase is locally enabled.

The snowy-mine hero is original editorial artwork rather than a reel capture. It illustrates the difference between merging and melting but cannot prove a live result. Use the official source and deployed history for every factual calculation.

Frequently asked questions

How large is the grid? Four reels by four rows with up to 256 ways.

What triggers the two bonuses? Three Bonus symbols for standard and four for Super Bonus.

What restores lives? A new Collector or Smeltdown symbol.

What are the buy prices? 60x and 330x where the controls are available.

Is the game confirmed in New Zealand? No. The provider source does not establish local operator access.

Official sources

• Quickspin: Mine & Melt
• Official game sheet

Bottom line: track lives, equal-value merges and the persistent Smeltdown multiplier as separate state changes.

How to verify the version you can actually open

A provider page proves that a title exists and describes the supplier's intended rules. It does not prove that a casino accepts players in New Zealand, that the title is enabled for a particular account, or that the highest published RTP is the version in the lobby. Treat availability, operator eligibility and product configuration as three separate checks.

Start with identity, then configuration

Open the game only through the authenticated casino lobby. The information or help panel should identify Quickspin, the exact title and the active mathematical return. Compare the reel or grid layout, paylines or cluster rules, named features and symbol behaviour with the official product material. Similar artwork or a matching title is not enough when the help file is missing or inconsistent.

When the supplier publishes several RTP values, report all of them as configurations. Do not assume the highest option is deployed. RTP is a theoretical long-run measure across a very large number of rounds; it is not a refund rate for one player and cannot predict the next result. Volatility is different: it describes how unevenly results are distributed on the provider's scale.

Read stake controls as money, not interface decoration

Provider sheets often quote a reference range in euros. That range does not establish New Zealand-dollar support or the limits in a specific account. Before a paid round, identify the total amount that will leave the balance. If the interface separates denomination, coins and lines, verify the combined total. If Extra Bet is active, calculate its full cost before pressing spin.

Feature-buy prices are multiples of the current bet, not promised returns. A 100x purchase at a $1 stake costs $100; at a $2 stake it costs $200. Availability can vary by market and some mathematical configurations may not support the control. If the live help does not explain the price, delivered feature and active RTP, leave the option unused.

Keep simulation figures in their proper scope

A game sheet may publish a maximum result observed in a large simulation. That is not automatically the contractual maximum payout and never describes a likely session. Preserve the provider's wording, sample size and configuration. Check the live rules for a binding cap and the operator terms for any separate payout limit. Do not turn an extreme result into a promotional headline.

Audit a disputed round

If an animation freezes or a connection drops, do not repeat the wager immediately. Reopen the game through the authenticated lobby and inspect round history. Record the time, total stake, balance movement and round identifier. The result can be settled by the gaming system even when the device never displays the final animation. Send evidence through verified operator support; never disclose a password, recovery phrase or one-time code.

Read the paytable as a calculation document

The paytable should explain what creates a win, which symbols substitute, where special symbols can land and how multiple awards combine. For line games, confirm direction and active paylines. For cluster games, confirm adjacency, minimum group size and the order of collection. For respins, identify what remains locked, what resets the counter and what ends the feature. A graphic effect can illustrate those rules but cannot replace them.

Separate addition from multiplication. Several prize values may be added before a multiplier applies, while reel-specific multipliers can sometimes multiply together only when each reel participates in the same win. Reconstruct one low-stake result from game history. If the arithmetic cannot be matched to the help file, stop and ask the operator rather than guessing.

Do not confuse hit frequency with a profitable round

Provider sheets can publish hit frequency or category probabilities. A hit simply means a round returned a qualifying amount; it can be smaller than the stake. “Big”, “Mega” or “Epic” thresholds are provider reporting categories, not promises. They are useful for comparing mathematical versions only when definitions and samples are the same.

Random outcomes do not become due after a long gap. A feature that appeared repeatedly in a demo or marketing clip has no obligation to repeat in a funded session. Previous rounds do not create a debt from the next random result.

Confirm market and device behaviour independently

A title can exist in the supplier catalogue while an operator disables it for a territory, currency, device or bonus. Language localisation is not evidence of legal availability. Confirm the operator's identity, accepted countries and current lobby separately from the provider review.

On mobile, verify that balance, total bet, feature state and help remain visible without overlap. On desktop, check that browser zoom does not hide a purchase control or change the apparent denomination. Mathematical configuration should not change merely because the screen changes; if the help shows another RTP, treat it as a different deployment and record it.

Keep a compact evidence record

For any fact used in a review, save the title, provider, official URL, document date when available, access date and exact territorial scope. For a live session, add the operator domain, Game ID, RTP, currency and a non-sensitive screenshot of the help panel. This makes later corrections possible when a supplier updates a sheet or an operator changes configuration.

Missing information should remain missing. Do not estimate an RTP from results, convert a euro reference range into an operator's NZD limit, or treat another casino's configuration as evidence. A transparent “not confirmed” is more useful than a precise-looking number without the correct source.

Use limits that survive the feature design

Collection meters, expanding grids, sticky symbols and near misses can make a session feel unfinished. Unless the rules explicitly preserve progress, the visible state has no value after the round or feature ends. Set a money limit and time limit before launch, count feature buys immediately, and stop at the limit even when a meter appears close to an upgrade.

No random game is an income plan. Do not borrow, use essential funds or raise the stake to recover a loss. If play stops feeling recreational, use timeout, deposit-limit or self-exclusion tools and consult the site's responsible gambling guide.