Symbol-Driven Multi-Mode Respin Trigger
The bonus game is triggered by collecting specific types of prize symbols, with the type of collected symbols directly determining which of several distinct Respin Bonus modes is activated.
Slot Features Explained and Standardized
Explore 228 mechanics identified through examination of individual games. We classify features by how they work, with explanations and interactive demos that make their similarities and differences easier to understand.
All FeaturesBonus GameFree SpinsJackpotScatterSpecial BettingSpecial ReelsSpecial SymbolsUnique PaysUnique SpinsWild
Upgradeable Multiplier Symbol
Upgradeable Multiplier Symbol is a special symbol whose value dynamically increases with each subsequent winning cascade within the same spin, leading to exponentially higher payouts.
Catalyst Zone
A randomly designated 'Catalyst Zone' appears on one reel position per spin; winning symbols within this zone apply their reel's current multiplier and then increase that reel's multiplier by +1 for subsequent wins within the same cascade sequence.
Ascending Sticky Wilds
Ascending Sticky Wilds are special wild symbols that remain on the reels after contributing to a win and then move up one position on the grid after each subsequent cascading win, continuing until they leave the screen.
Patterned Wild Generation
A special symbol generates wild symbols with multipliers in predefined directional patterns across the reels.
Wild-Triggered Winning Symbol Expansion
This feature expands winning symbols across two adjacent reels when a Wild contributes to a win, significantly boosting payout potential.
Full Line Identical Symbol Multiplier
A special multiplier that awards an additional x10 multiplier to any winning combination where all symbols forming the win are identical.
Top Down Payline Evaluation
This feature specifically evaluates and awards wins on active paylines in a top-down direction across the reels.
Grid Rotation
A feature that physically rotates the entire game grid by 90 degrees, repositioning all symbols and potentially creating new winning opportunities based on the new orientation.
Post-Win Relocating Wild
A Wild symbol that, after contributing to a win, relocates to an adjacent empty position on the grid, maximizing its contribution to cascading sequences.
Summing Multipliers Per Cascade
All multiplier symbols present on the reels are summed at the conclusion of a cascade sequence, and this total multiplier is then applied to the accumulated win from that entire cascade sequence.
Full Board Win Multiplier
This feature awards an additional random multiplier to all win amounts if every symbol position on the board contributes to a winning payline in a single spin.
Summed Reel-Top Multipliers
This feature displays individual multipliers above each reel, which activate when a specific symbol lands on their respective reel, and then all active multipliers are summed to boost the total spin win.
Reel-Specific Symbol Selector
Each reel has an independent symbol selector above it; if the selected symbol lands on the reel, all symbols on that reel transform to match the selected symbol.
Mixed Symbol Line Pays
This feature allows a specific family of distinct symbols (e.g., single, double, or triple sevens) to form winning combinations on paylines by being interchangeable, awarding payouts for any mix of these symbols.
Multi-Mode Coin Spin Feature
This bonus feature offers a randomly selected mode (Boost, Collect, or Multi) which uniquely modifies how Prize Coins interact with gameplay.