Big Mammut from Spin2Win brings the Ice Age to life with a 5-reel, 1024 ways-to-win format that features prehistoric creatures in a snow-covered wilderness. The slot implements stacked premium symbols—Mammut, Caveman, and Tiger—that can appear in groups of up to three on a single reel. Players benefit from Wild substitutions on reels 2 and 4, while landing Scatters on reels 1, 3, and 5 activates 10 Free Spins with a 2X multiplier on all wins. The game maintains a competitive 96.06% RTP (excluding jackpots) and includes two progressive jackpot systems—a regular Jackpot and Super Jackpot—that accumulate from player contributions across the network. Big Mammut’s medium-to-high volatility creates a balance between frequent smaller wins and the potential for substantial payouts, especially during the Free Spins feature.
The prehistoric wilderness roars to life in Big Mammut, a vibrant video slot from Spin2Win that transports players back to the dawn of humanity. This 5-reel game leverages 1024 ways to win, creating an environment where mammoth-sized prizes await those brave enough to venture into the ice age.
Game Mechanics and Structure
Big Mammut operates on a 5-reel grid with 1024 ways to win instead of traditional paylines. This winning mechanism creates payouts when matching symbols appear on adjacent reels from left to right, regardless of their exact position. This approach dramatically increases winning potential compared to conventional payline systems.
The betting system allows players to adjust their stake using the arrows on the BET selector. All payouts are calculated in COINS, with the coin value displayed next to the bet selector. Your cash winnings equal the coin win multiplied by the coin value, creating a straightforward calculation system that helps track your rewards.
What sets Big Mammut apart from many prehistoric-themed slots is its implementation of stacked symbols. The three premium symbols—the Mammut (mammoth), Caveman, and Tiger—appear as stacked symbols, meaning they can occupy multiple positions on the same reel in groups of one, two, or three. This feature significantly increases the chances of landing substantial combinations across the 1024 ways to win.
Visual Design and Thematic Elements
The game's design employs a vivid color palette to bring the ice age setting to life. Each symbol features distinctive illumination that makes them stand out against the backdrop—blue edges for the mammoth symbols, teal for the caveman, and purple for the saber-toothed tiger.
The attention to detail extends to the card symbols (A, K, Q, J, 10), which are designed with an ice-like appearance, maintaining the prehistoric theme while ensuring clear visibility. This consistent artistic approach creates a cohesive experience that reinforces the game's ice age setting.
Special Symbols and Features
Big Mammut incorporates two special symbols that enhance gameplay significantly:
Wild Symbol: This powerful symbol can substitute for all regular symbols except Scatter, dramatically increasing winning potential. An interesting restriction is that Wilds only appear on reels 2 and 4, creating strategic hotspots on the grid that players will eagerly watch.
Scatter Symbol: Represented by a special ice age icon, this symbol can only appear on reels 1, 3, and 5. Landing three Scatters simultaneously triggers the game's Free Spins feature.
Free Spins Bonus
The Free Spins feature represents the pinnacle of Big Mammut's excitement. When three Scatter symbols land on reels 1, 3, and 5 during the base game, players receive 10 Free Spins.
What makes this bonus particularly rewarding is the 2X multiplier applied to all wins during the Free Spins. This means every win value is doubled, creating opportunities for substantial returns.
The game allows for reactivation of Free Spins—landing three more Scatters during the bonus awards an additional 10 Free Spins. This reactivation can occur up to three times, potentially extending the bonus to a maximum of 40 Free Spins.
Free Spins use the same bet value and coin settings as the triggering spin, ensuring consistency between base game and bonus play. The bonus uses alternative reels while maintaining the same paytable structure as the base game.
Super Jackpot
The Super Jackpot appears in the bottom right corner of the game interface (when enabled by the casino). This jackpot pool grows from contributions made by all players across the Spin2Win game network, with 0.25% of each bet adding to the current pot and 0.10% being set aside for the next jackpot. It can only be won during the base game on a losing spin and it cannot be won during Free Spins or simultaneously with the regular Jackpot. Higher bets increase winning chances proportionally and it's randomly awarded to players who participated in the last 15 days. The theoretical return to player (RTP) contribution from the Super Jackpot is approximately 0.35%
Regular Jackpot
The standard Jackpot appears in the bottom left corner of the game interface (when enabled). This jackpot accumulates from 1% of all bets placed by players in the specific Spin2Win jackpot group, with 0.25% reserved for the next jackpot seed. Like the Super Jackpot, it can only be won during base game losing spins, it cannot coincide with Super Jackpot wins. All active players have equal chances of winning and the theoretical RTP contribution from the Jackpot is approximately 1.25%.
Both jackpot systems feature progressive values that update every 30 seconds, though internet connection delays might affect the displayed values. Neither jackpot has a maximum cap, allowing for potentially enormous prize pools over time.
Return to Player and Game Volatility
Big Mammut offers a theoretical return to player (RTP) of 96.06%, excluding the jackpot contributions. When including the jackpot systems, the total RTP increases to approximately 97.66% (96.06% + 0.35% + 1.25%).
This RTP level positions Big Mammut competitively within the online slot market, offering players favorable odds compared to many similar games. The medium-to-high volatility creates a balance between frequent smaller wins and the potential for significant payouts, particularly during the Free Spins with their 2X multiplier.
Big Mammut successfully merges prehistoric theming with engaging gameplay mechanics. The combination of 1024 ways to win, stacked symbols, and a multiplier-enhanced Free Spins feature creates multiple paths to significant wins. The dual progressive jackpot system adds an extra dimension of excitement, especially for players seeking life-changing wins beyond the base game and bonus features. With its competitive 96.06% RTP (excluding jackpots), appealing visual design, and straightforward yet engaging mechanics, Big Mammut stands as a worthy addition to the prehistoric-themed slot category. The game particularly appeals to players who enjoy medium-to-high volatility experiences with the potential for substantial rewards through the Free Spins feature. The restriction of Wild symbols to reels 2 and 4 creates strategic anticipation, while the stacked premium symbols generate excitement when they appear in full view across multiple positions. These design choices demonstrate thoughtful game mechanics that enhance the overall experience beyond mere visual appeal.
