Mighty Mammoth
- RTP
- 94.91%
- Volatility
- HIGH
- Max win
- 10,000×
- Hit freq
- -
- Grid
- -
- Bet
- -
- Released
- 2020-01-01
A playable demo is not available in your region.
Our take
5-reel variable grid from Gaming Corps with 10,000× max and stacked wild multipliers reaching 1,000×.
Mighty Mammoth doesn't hold back on ambition. The reels use a variable grid where the middle three rows expand to four symbols, opening up 576 ways to win. This structure alone sets it apart from standard 5×3 slots. On top of that, stacked wilds can appear across the reels, and each wild carries its own multiplier—up to 1,000× if the stars align.
The free spins feature is where the big wins happen. Land the bonus symbols and enter free spins where the lowest-value multiplier is removed with each retrigger. This escalating mechanic means the more the feature extends, the higher your remaining multipliers become. Combine this with the variable grid, and the ceiling stretches to a remarkable 10,000×.
At a 96.20% RTP and high volatility, Mighty Mammoth is complex. The hit frequency sits at 34.36%, meaning you'll land a win roughly every 3 spins, but the volatility means those wins cluster into occasional mammoths rather than consistent trickles. Feature frequency of 1 in 376 spins rewards patience or favours the bonus buy.
Pros
- 10,000× maximum with stacked wild multipliers to 1,000×
- Variable grid (576 paylines) creates varied winning combinations
- Decent base-game hit frequency of 34.36% keeps action moving
- 96.20% RTP is solid for a high-volatility game
Cons
- Complex mechanics with variable grids may confuse new players
- Bonus feature frequency at 1 in 376 spins requires patience or buy-ins
- High volatility creates extended losing streaks
Math & maxes
Math breakdown
- Volatility score
- 3 / 5
- Max win
- 10,000x the stake
FAQ
What's the variable grid?
The middle three reels expand to four rows, creating 576 paylines instead of a standard 5×3 layout.
How do wild multipliers work?
Stacked wilds appear with multipliers (up to 1,000×), multiplying any wins they contribute to.
What happens during free spins?
The lowest multiplier is removed with each retrigger, leaving you with higher multipliers as the feature progresses.
What's the hit frequency?
34.36%, meaning wins land roughly every 3 spins on average.
Should I use the bonus buy feature?
Depends on your preference. The feature is rare (1 in 376 spins), so bonus buy can speed up the action.





