Thunder Coins XXL: Multicoin - Dual-Collect Hold & Win With a 20x Multiplier Ceiling

Two collect types on reel 2 instead of one - that is the only structural change Playson made to the Thunder Coins formula for the March 2026 release, and it is the change worth testing. Thunder Coins XXL: Multicoin uses the same 3x5 grid, same coin-and-collect base game, but adds a second collect type on reel 2 called MULTICOIN COLLECT - it multiplies the accumulated coin total by up to 20x before paying. That one change shifts what a single bonus round can deliver.

I ran 1,707 spins in the Playson demo to see how it plays out. The game launches on a plain black screen with a grey, unlit PLAY label at center - no animated intro.

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Playson demo - virtual credits only. Real-money results differ.

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Grid, Controls, and Base Game

Three reels, five rows, 15 fixed paylines. Fruit symbols across the grid: oranges, lemons, plums, cherries, plus red sevens acting as Wilds. Standard setup for the Thunder Coins format.

The jackpot bar runs across the top in four color-coded boxes: GRAND (red, 1000x), MAJOR (gold, 100x), MINOR (teal, 30x), MINI (purple, 15x). At EUR 1.00 bet all four tiers show before the first spin. Values scale proportionally with bet size - at EUR 0.10 bet the GRAND pays EUR 100.

Left panel holds the game logo, coin pile illustration, the EXTRA BETS toggle, and an orange BONUS button with a shopping-cart icon at the bottom. Right side has Autoplay at the top and a HOLD FOR TURBO skip button. Credit / Last Win / Bet controls sit along the bottom bar.

Thunder Coin Mechanics - Two Collect Types

Thunder Coin symbols land on reels 1 and 3. Each coin shows an individual EUR value on its face. Reel 2 is where the collect happens, and it comes in two forms.

Thunder Coin COLLECT: sums all Thunder Coin values visible on reels 1 and 3, pays directly.

MULTICOIN COLLECT: does the same sum, then multiplies the total by up to 20x before paying.

Per the Playson press release via LCB: "Thunder Coins add all Coin values directly to the win, while MULTICOIN combines values before applying a multiplier of up to 20x."

If coins land on reels 1 and 3 without a collect on reel 2, two automatic base-game features can create a pathway: Random MULTICOIN (a MULTICOIN symbol may appear randomly on reel 2 if coins are present without a collect) and Pile of Gold (can add additional coin symbols after any coin lands, expanding the coin pool). Both run without any Extra Bet cost.

The base-game collect resolves within the same spin - no Hold & Win board, no respins. A late-session checkpoint showed four Thunder Coins on the right reel with LAST WIN reading 10x, indicating a base-game collect that fired and resolved without entering the bonus round.

Hold & Win Bonus

Hold & Win triggers when Thunder Coin symbols on reels 1 and 3 pair with a collect symbol on reel 2. The grid transforms: background shifts to deep blue with a full-screen lightning-bolt motif, standard symbols clear, and only Thunder Coin positions and empty cell placeholders remain.

Three respins to start. The respin counter on the left shows three boxes: 1 / 2 / 3. Each time a new coin locks into an open cell, the counter resets to 3. Accumulated coin values build in the round total. When the counter drops to zero with no new landing, the round ends and pays.

If a MULTICOIN COLLECT triggered the feature, the left panel's game logo area is replaced by a large X[N] multiplier indicator. During Bonus 3 in my session (spin 346), that indicator showed X2 while the board was still filling - readable mid-round while the sequence was running.

Coins lock with their EUR values printed on the face and visible at landing. Values I observed across 9 session bonuses ranged from 1x to 56x at EUR 1.00 bet. All four jackpot tiers can land during Hold & Win, the same as in the base game.

Bonus Buy and Extra Bets

Three tiers from the BONUS button in the left panel:

• Tier 1 (75x bet): increased Hold & Win trigger probability
• Tier 2 (175x bet): further increased probability
• Tier 3 (250x bet): guarantees a collect symbol - every activation is a Hold & Win round

At EUR 0.10 minimum bet: Tier 1 costs EUR 7.50, Tier 3 costs EUR 25.00. At EUR 1.00: EUR 75, EUR 175, EUR 250.

Two Extra Bets toggle in the left panel below the coin pile: Double Chance (raises base-game bonus trigger probability per spin) and THUNDERCOIN Spin (guarantees a collect symbol and increases trigger chances per spin).

I tested with both Extra Bets off for the full 1,707 spins. Tier 3 at 250x gives a guaranteed collect on every press - useful for skipping base-game variance, but at EUR 250 per activation at EUR 1.00 bet, the bonus needs to produce something meaningful to justify it.

My Session - 1,707 Spins

I ran 1,707 spins in the Playson demo at EUR 1.00 per spin. No Extra Bets, no Bonus Buy. Here is what the session produced.

Hold & Win triggered 9 times across those 1,707 spins - roughly once every 190 spins in this session. Three of those nine arrived in a 23-spin cluster: triggers at spins 323, 337, and 346, paying 98x, 91x, and 46x respectively. That cluster (235x combined) was the only stretch where my credit moved above the EUR 11,000 I opened with; the peak was EUR 11,012.

After that cluster the gaps widened. The next trigger came at spin 525. The last arrived at spin 1532, and the final 175 spins of the session ran cold.

Respin counts per bonus ranged from 4 (Bonus 7, spin 922) to 14 (Bonus 8, spin 1053). Average was just under 10 per round. The 14-respin sequence paid 74x with no multiplier coins - coin value accumulation alone over a long sequence. My session high, 112x, came from Bonus 6 at spin 887: two 56x coins locked in, no multiplier coins at all. The best result I logged had nothing to do with the MULTICOIN feature.

The MULTICOIN multiplier was active in Bonuses 1, 3, 4, and 9. Highest multiplier coin observed was 5x in Bonus 9 (80x total). The 20x ceiling did not appear across 9 bonuses.

Base-game hit rate was about one paying spin in seven. Longest dry streak was 33 consecutive non-winning spins. Base-game pays averaged around 3x. Bonus rounds accounted for roughly 46% of total session wins.

When Hold & Win fires, the audio changes - something with a different weight comes through in the mix. That change arrives before the bonus board has fully settled into view. After four or five triggers in the session, I was picking up that audio cue as the first sign the feature had fired.

Session Progression

Session Observed RTP

Wagered: EUR 1,707 (1,707 spins × EUR 1.00). Returned: EUR 1,340.50 (total coins paid out across the session). Observed RTP: 1,340.50 / 1,707 = 78.53%. Single-session figure only - not predictive of long-run return.

Pros and Cons

How Thunder Coins XXL: Multicoin Compares

The closest relative in the Playson catalog is Thunder Coins XXL: Hold and Win - same 3x5 grid, same base coin mechanic, single collect type on reel 2. The MULTICOIN collect is the only structural difference. In practice: Hold and Win produces more consistent bonus outcomes because every collect is a direct sum; Multicoin adds an upside range but also more spread between bonus results. Five of my nine bonuses had zero multiplier coins - those rounds played identically to what a Thunder Coins XXL: Hold and Win bonus would produce.

Playson also released Timeless Diamonds: Hold and Win in the same March 2026 batch - a 3x3 grid Hold & Win with stacking multiplier symbols that settle at position. Smaller board, different multiplier delivery mechanism, same Hold & Win family from the same developer release period.

For a cross-format reference: Coin Strike: Hold and Win (Playson) uses a 3x3 grid with a dedicated Strike Bonus on reel 2 rather than the Thunder Coins split-collect system. Smaller board, different multiplier delivery, same volatility territory.

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