Slot Glossary
36 terms covering Thunder Coins XXL Multicoin's Hold and Win Coin Symbols, Multicoin coin-splitting, Thunder Feature 20x multipliers, four-tier jackpots, and the path to 1,000x.
Autoplay
Spin Thunder Coins XXL Multicoin automatically for a set count. Stop conditions: stop on 6+ Coin Symbols (Hold and Win trigger), stop on Thunder Feature activation, stop on jackpot tag landing. Useful for grinding the ~1 in 200 Hold and Win trigger without watching every spin.
Base Game
Regular play before Hold and Win activates. Thunder Coins XXL Multicoin runs on a 3×5 grid with 15 Lines. Medium-High volatility means about 60% dead spins; the value sits in Coin Symbol triggers and Thunder Feature multiplier landings.
Bonus Buy
Thunder Coins XXL Multicoin sells direct bonus access from the bet menu. Hold and Win at 80x stake; Free Spins at 100x stake. RTP holds at ~96% across both. UK and Sweden block bonus buys.
Cascading Reels
Thunder Coins XXL Multicoin doesn't use cascades. Wins resolve once per spin via 15 paylines plus the Hold and Win respin sequence (3 respins, reset on each new Coin landing). The replay action comes from Thunder Feature random spawns rather than in-spin cascade chains.
Coin Symbol
Thunder Coins XXL Multicoin's Hold and Win trigger. Six or more Coin Symbols on a single spin lock all coins in place and start the 3-respin sequence. Coins carry cash values (1x-500x) plus jackpot tags (Mini 30x, Minor 100x, Major 300x, Grand 1,000x).
Cluster Pays
Thunder Coins XXL Multicoin doesn't use cluster pays. Wins resolve through 15 Lines on the 3×5 grid. The Hold and Win respin format on a 15-position grid (3×5) is the headline mechanic — coins lock to positions, not clusters.
Dead Spin
A spin returning nothing. Thunder Coins XXL Multicoin's medium-high volatility produces dead spins around 55-60% of the time at base play. Lower than typical high-volatility slots because the 15-payline density combined with Thunder Feature random spawns provides frequent small returns.
Feature Trigger Rate
How often Hold and Win activates. Thunder Coins XXL Multicoin's natural trigger sits at ~1 in 200 base spins (6+ Coin Symbols). Free Spins trigger: ~1 in 280 base spins (3+ Scatters). Thunder Feature spawns randomly during base play and respins.
Free Spins
Thunder Coins XXL Multicoin's secondary feature. Triggered by 3+ Scatters. Awards 8 free spins with a progressive global multiplier — starts at x2, grows +1 per spin, ends at x9 by the final spin. Different from Hold and Win which uses a respin format on locked coins.
Full Board Fill
Thunder Coins XXL Multicoin's Hold and Win cap event. Filling all 15 positions on the 3×5 grid awards the Grand jackpot outright (1,000x stake). Natural full-board fill probability: ~1 in 4,500 trigger events.
Grand Jackpot
Thunder Coins XXL Multicoin's top jackpot tag (1,000x stake). Lands during Hold and Win and ends the round at the 1,000x cap. Grand can also be awarded automatically by filling all 15 positions on the locked grid.
Hit Frequency
Thunder Coins XXL Multicoin's hit rate sits at ~40-45% — about 1 in 2-3 spins lands a winning combination. Higher than high-vol slots because the 15-payline density plus Thunder Feature random spawns produces frequent small returns even outside Hold and Win triggers.
Hold and Win Mechanic
Thunder Coins XXL Multicoin's headline feature. Six or more Coin Symbols anywhere on the 3×5 grid lock the coins in place and start 3 respins. Each fresh Coin landing resets the counter back to 3. Non-coin reels keep spinning around the locked positions. Round ends when respins run out or all 15 positions fill.
Max Win
Thunder Coins XXL Multicoin caps at 1,000x. The path runs through Hold and Win with either a Grand jackpot tag landing on the locked grid OR filling all 15 positions outright. Grand probability per Hold and Win round: ~1 in 1,500.
Max Win Cap
Once Thunder Coins XXL Multicoin hits 1,000x, the round ends immediately. The 1,000x cap is modest by 2026 standards but consistent with Playson's Hold & Win catalog positioning. Sister title Sugar Teddy x1000 caps at the same 1,000x.
Megaways
A Big Time Gaming licensed format with up to 117,649 ways to win. Thunder Coins XXL Multicoin doesn't use Megaways — it runs 15 Lines on a 3×5 grid. The Hold and Win mechanic doesn't fit the Megaways reels-and-rows format.
Multicoin Feature
Thunder Coins XXL Multicoin's signature mechanic versus the original Thunder Coins. A single coin can split into multiple cash values during the respin round — instead of one coin = one value, a Multicoin lands and pays out two, three, sometimes four stacked amounts on the same position. Combined with the Thunder Feature, the bonus accumulates value through two parallel paths.
Multiplier
A value applied to wins. Thunder Coins XXL Multicoin uses no global multiplier in base play. Thunder Feature carries multipliers up to 20x on specific positions. Free Spins runs a progressive global multiplier (x2 → x9 across 8 spins).
Paylines
Predefined lines across the reels where matching symbols form a win. Thunder Coins XXL Multicoin runs 15 Lines on a 3×5 grid. Lines pay left-to-right starting from reel 1. All 15 lines always active — can't reduce. Standard for compact 3×5 Playson layouts.
Paytable
Thunder Coins XXL Multicoin's reference chart shows each symbol's payout for matching combinations. Premium thunder/gold-coin themed symbols pay the highest line values. Mid-tier coin imagery fills the middle. Low-pay symbols round out the bottom across the 15-line layout.
RNG (Random Number Generator)
The cryptographic algorithm determining every spin outcome. Playson uses certified RNGs in Thunder Coins XXL Multicoin — independently audited for fairness. Each spin is independent of the last; previous Coin Symbol landings or Thunder Feature spawns have zero influence on future spin outcomes.
RTP (Return to Player)
Thunder Coins XXL Multicoin returns 95.64% (default). Some operators may run a lower RTP version (around 93% or 91%) — verify in the game info screen at your casino before serious play. Playson's Hold & Win design philosophy front-loads return into bonus rounds.
Respin Counter Reset
Thunder Coins XXL Multicoin's Hold and Win extension rule. Each fresh Coin Symbol landing during a respin resets the counter back to 3 respins. Chained Coin landings can stretch a 3-respin round into 8+ respins, drastically increasing the chance of full-board fill or jackpot tag landings.
Scatter
Thunder Coins XXL Multicoin's special trigger symbol. Three or more Scatters on a single spin trigger Free Spins (8 spins with progressive x2-x9 multiplier). Different from Coin Symbols (which trigger Hold and Win at 6+).
Session Variance
Thunder Coins XXL Multicoin's session-to-session result spread. With 95.64% RTP and medium-high volatility, a 200-spin session can return 50% to 200% of wagered. Without a Hold and Win trigger, sessions tend to land 50-90% of theoretical RTP. With Hold and Win + Thunder Feature, sessions can finish 180%+.
Sticky Wild
A Wild that stays in place across multiple spins. Thunder Coins XXL Multicoin's Wilds are NOT sticky in base play. The persistence equivalent is the locked Coin Symbol grid during Hold and Win — coins stay in their positions for the entire respin sequence.
Thunder Feature
Thunder Coins XXL Multicoin's random base-game multiplier event. Thunder Coins zap the reels mid-spin and upgrade random positions with boosted multipliers up to 20x. The mechanic that turns a quiet base game spin into a sudden payout spike. Activates randomly during base play and respins.
Volatility (Variance)
Thunder Coins XXL Multicoin is rated Medium-High — moderately heavy variance for a Playson Hold & Win title. The 40-45% hit rate produces frequent small returns balanced by occasional Hold and Win bursts and Thunder Feature multiplier landings.
Ways to Win
An alternative to fixed paylines. Thunder Coins XXL Multicoin uses 15 Lines fixed paylines, not ways-to-win. The compact 3×5 grid suits paylines better than ways-format math.
Wild
A symbol that substitutes for any regular symbol to complete winning combinations. Thunder Coins XXL Multicoin's Wilds substitute for everything except Coin Symbols and Scatters. Wild rate: ~1 per 10 spins, with x2-x25 multiplier values applied when the Wild contributes to a winning line.
Win Distribution
Medium-High-volatility slots like Thunder Coins XXL Multicoin are balanced. Hold and Win rounds contribute ~40% of total RTP. Free Spins (with progressive multiplier) ~18%. Thunder Feature random spawns ~17%. Base-game payline wins ~25%. The distribution balances bonus rounds with steady base-game returns.
XXL vs Original Thunder Coins
Thunder Coins XXL Multicoin's positioning versus the original Thunder Coins. The "XXL Multicoin" version adds escalating multipliers up to 20x during the Thunder Feature, plus the Multicoin coin-splitting mechanic and extra bet options. Same core Hold and Win loop with stronger win spikes and more coin variety.
Bonus Buy Restrictions
Some countries ban purchasing bonus rounds. UK prohibits since October 2021. Sweden caps bet sizes during buys. Thunder Coins XXL Multicoin's tiered buys (Hold and Win 80x, Free Spins 100x) follow these restrictions.
Playson Catalog Position
Thunder Coins XXL Multicoin (March 2026) sits in Playson's thunder/gold-coin Hold & Win expansion. Common thread with sister Playson titles (Solar Queen, Sugar Teddy x1000): 6+ Coin trigger, 3 respins (reset on new Coin), face values plus jackpot tags. The XXL Multicoin variant adds the Thunder Feature and coin-splitting layers.
3×5 Grid with 15 Paylines
Thunder Coins XXL Multicoin's grid format. 3 rows × 5 reels = 15 cells (the Hold and Win lock-grid). Pays through 15 Lines fixed paylines in base play. The compact 15-cell grid means a full-board fill is mathematically reachable rather than a fantasy peak chase.
See These Terms in Action
Try Thunder Coins XXL Multicoin demo and watch Coin Symbols lock for Hold and Win, Multicoins split into stacked values, and Thunder Feature zap multipliers up to 20x.
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