Slot Glossary
36 terms covering Mighty Mountain's Hold & Respin volcano mechanic, Triple Maiden Bonus modifiers (Green cash boost, Red grid expansion, Blue extra respin), and the path to 2,300x.
Autoplay
Spin the reels automatically for a set number of rounds on Mighty Mountain. Pick how many spins and optional stop conditions (stop on Hold & Respin trigger, stop on Triple Maiden activation, stop on big wins). Useful for grinding the natural ~1-in-180 girl symbol trigger.
Base Game
Regular gameplay before Hold & Respin activates on Mighty Mountain. Base game runs across the 5x3 grid with 25 lines. Medium volatility means more frequent hits than high-vol slots — the medium volatility helps balance the 94.22% RTP with steady base game wins.
Blue Maiden
Mighty Mountain's respin-extension Triple Maiden Bonus. The blue maiden bumps your respin counter from 3 to 4 when she shows up during Hold & Respin. Doesn't sound like much until you realize one extra spin can chain into a full grid. Patience pays — the extra respin matters more than the magnitude suggests.
Cascading Reels (Tumble)
Mighty Mountain doesn't use cascades — wins resolve once per spin via 25 paylines. The replay action comes from Hold & Respin (after girl symbol trigger) and Triple Maiden Bonus modifications rather than in-spin cascade chains.
Cluster Pays
Mighty Mountain doesn't use cluster pays. Wins resolve through 25 lines on the 5x3 grid. Cluster pays would require connected matching symbols anywhere; Mighty Mountain keeps the line-win format with Hold & Respin and Triple Maiden mechanics providing the value-escalation paths.
Dead Spin
A spin that returns absolutely nothing on Mighty Mountain. medium volatility produces dead spins around 60% of the time at base game — fewer than high-vol slots. Even dead spins can show partial girl symbol counts that don't quite hit the 6-symbol Hold & Respin trigger threshold.
Expanding Grid
Mighty Mountain's headline mechanic activated by the red maiden during Hold & Respin. The standard 5×3 grid splits into two 5×3 panels stacked together. That doubles the number of positions where cash symbols can land on subsequent respins. Symbols already locked stay locked on the original panel; the new panel starts empty and fills as the bonus continues.
Feature Buy
Mighty Mountain's skip-the-grind menu option. Two tiers. Standard Buy guarantees Hold & Respin starts with at least one maiden active (random colour). Premium Buy guarantees all three maidens fire from the opening spin — the only direct path to the 2,300x cap. Internal RTP same as natural play.
Feature Trigger Rate
How often Hold & Respin activates on Mighty Mountain. Natural trigger rate via 6+ girl symbols on a base spin: ~1 in 180 spins. Inside Hold & Respin, the chance of all three maidens appearing naturally is under 3% per trigger. Feature pace is moderate — patience-based sessioning rewards the medium volatility math.
Free Spins
Mighty Mountain doesn't use traditional free spins. The headline feature is Hold & Respin, triggered by 6+ girl symbols on a single spin rather than scatter accumulation. Inside the round, three respins start with each new girl symbol resetting the counter back to 3.
Girl Symbols
Mighty Mountain's Hold & Respin trigger and value-bearing symbols. Girls land with stamped credit values (1x to 50x stake range; premium girls 100x-500x). 6 or more on a single base spin trigger Hold & Respin. During the bonus, every girl symbol sticks in place and contributes to the cumulative payout total.
Green Maiden
Mighty Mountain's cash-boost Triple Maiden Bonus. The green maiden boosts every cash value sitting on the grid during Hold & Respin. Boost typically +25% to +100% on existing cash values. More cash symbols = bigger bump. Single green maiden alone can push average bonus returns above 100x.
Hit Frequency
How often Mighty Mountain lands any winning combination. Hit rate sits around 35-40% in base game — roughly 1 in 3 spins pays something. Higher than typical high-vol slots because the medium volatility prioritizes more frequent base game hits at the cost of lower top-end peak outcomes.
Hold & Respin
Mighty Mountain's headline bonus mechanic. 6 or more girl symbols on a single base spin trigger the round. Girls lock in landing positions. Three respins begin. Every fresh girl symbol landing sticks and resets the counter back to 3. The round ends when respins hit zero or the grid is fully covered.
Indigo Magic Provider
Mighty Mountain's provider — part of the Bragg Group portfolio. Indigo Magic specializes in mechanic-driven slots with Hold & Respin and bonus-modifier designs. Mighty Mountain (2024) sits in their volcano/adventure-themed catalog. Distribution skews toward European regulated markets.
Maiden Stacking
Mighty Mountain's Triple Maiden Bonus combined-effect mechanic. Multiple maidens stack their effects independently. Green + Red = boosted cash values across doubled grid space. Green + Blue = boosted cash values plus extra respin. All three together is the strongest natural configuration — under 3% of triggers but is where 1,000x+ outcomes start showing up.
Max Win
The absolute maximum a slot can pay on a single round. Mighty Mountain caps at 2,300x. The path requires Hold & Respin with all three maidens active (Premium Buy guarantees this; natural triggers under 3%). Estimated probability ~1 in 200,000 base spins for max-tier outcomes through natural play.
Megaways
A Big Time Gaming licensed mechanic with up to 117,649 ways. Mighty Mountain doesn't use Megaways — uses 25 lines on a 5x3 grid that can expand to two 5×3 panels via the red maiden. The Expanding Grid mechanic is similar in spirit to dynamic-ways slots but stays within the line-pay format.
Multiplier
A value that multiplies your win on Mighty Mountain. Base game uses standard payline values without global multipliers. Green maiden during Hold & Respin functions as a payout boost (+25% to +100% on existing cash values) rather than a flat multiplier — applied to all locked girl symbol values rather than spin-by-spin.
Paylines
Predefined lines across the reels where matching symbols form a win. Mighty Mountain runs on 25 lines on a 5x3 grid. Lines pay left-to-right starting from reel 1. All 25 lines are always active. The 25-line density is standard for medium-vol Indigo Magic 5×3 layouts.
Paytable
The reference chart showing each symbol's payout on Mighty Mountain. Access through the game info menu. Premium symbols (volcano character, lava gem, mountain crown) pay the most. Mid-tier symbols include themed adventure imagery (compass, map, torch). Card royals (A/K/Q/J/10) form the bottom across the 25-line layout.
Red Maiden
Mighty Mountain's grid-expansion Triple Maiden Bonus. The red maiden cracks open an entire second 5×3 grid during Hold & Respin. That doubles your landing spots for cash symbols during respins. Two grids, one bonus — locked symbols stay on the original panel; new symbols can land on either. Single biggest contributor to high-end outcomes.
Respin Counter
Mighty Mountain's Hold & Respin spin-tracking mechanism. Starts at 3 respins. Every new girl symbol landing resets it back to 3. Blue maiden bumps the starting count from 3 to 4. The chain ends when respins hit zero. Long chains (5+ effective respins via resets) are where Hold & Respin produces meaningful payouts.
RNG (Random Number Generator)
The cryptographic algorithm determining every spin outcome on Mighty Mountain. Indigo Magic uses GLI-certified RNGs — independently audited for fairness. Each spin is independent of the last; previous girl symbol counts or maiden appearances have zero influence on future spin outcomes.
RTP (Return to Player)
The theoretical percentage of wagered money a slot returns over millions of spins. Mighty Mountain runs at 94.22% — below the 96% industry average. Plan session budgets around extended dry stretches between meaningful bonus hits. The medium volatility helps balance the lower RTP with more frequent hits.
Scatter
Mighty Mountain doesn't use traditional scatters. Hold & Respin triggers via girl symbol count (6+ on a single base spin), not scatter accumulation. The girl symbol functions as both the bonus trigger and the value-bearing symbol during the bonus round itself.
Session Variance
The gap between actual results and theoretical RTP on Mighty Mountain. With 94.22% RTP and medium volatility, a 200-spin session can return 30% to 200% of your wager. Without a Hold & Respin trigger, sessions tend to run 50-80% of theoretical RTP. With Hold & Respin plus all three maidens via Premium Buy, single sessions can finish at 250%+.
Standard Buy
Mighty Mountain's entry-tier Feature Buy. Cheaper than Premium Buy. Guarantees Hold & Respin starts with at least one maiden active — game randomizes which colour shows up. Average return ~95x bet. The guaranteed maiden makes the buy meaningfully better than natural triggers without the Premium tier's variance.
Sticky Wild
A Wild symbol that stays in place across multiple spins. Mighty Mountain's girl symbols become sticky during Hold & Respin — they freeze in place for the entire bonus duration. Wild substitutes in base game are NOT sticky — they substitute for one spin and disappear with the next.
Triple Maiden Bonus
Mighty Mountain's headline bonus modifier system. Three maidens (green, red, blue) each modify Hold & Respin differently. Green boosts cash values. Red opens a second 5×3 grid. Blue gives 4 respins instead of 3. Multiple maidens stack their effects independently. All three together via Premium Buy is where 2,300x cap becomes realistic.
Volatility (Variance)
How a slot's payouts are distributed. Mighty Mountain is rated Medium — meaning more frequent hits than high-vol slots, balanced with smaller peak outcomes. The medium volatility helps balance the 94.22% RTP. Most session profit comes from Hold & Respin triggers with at least one active maiden modifier.
Volcano Theme
Mighty Mountain's visual and audio design language. Crater backdrop, lava bubbling visuals, ambient rumble score, glowing ember particles drifting across the grid. The volcano theme matches the Hold & Respin "mountain rumbling before payout" gameplay rhythm.
Ways to Win
Mighty Mountain doesn't use ways-to-win — it uses 25 lines fixed paylines. Indigo Magic reserves dynamic-ways formats for select titles in their catalog; Mighty Mountain stays with the classic 25-line layout that works well with the Hold & Respin and Triple Maiden mechanics.
Wild
A symbol that substitutes for any regular symbol to complete winning combinations on Mighty Mountain. Wilds substitute for everything except girl symbols (which trigger and feed Hold & Respin) and maiden symbols (which modify the bonus). Wilds appear during base game at standard substitution rates.
Win Distribution
How total payouts are spread across different win sizes on Mighty Mountain. Medium-volatility slots like Mighty Mountain are balanced — Hold & Respin contributes ~40% of total RTP. Triple Maiden Bonus modifications ~25%. Standard payline wins without features ~30%. Wild substitutions ~5%. The distribution is more balanced than high-vol slots.
See These Terms in Action
Try Mighty Mountain demo and watch girl symbols trigger Hold & Respin, the red maiden split the grid into two panels, and the green maiden boost cash values across both grids.
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