Consolation Symbol Drop
A rescue feature that randomly adds necessary winning symbols to the reels in a 'near-miss' situation.
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
Consolation Wilds
A wild that is created as a 'consolation' prize when a specific condition is met on a non-winning spin.
Countdown Wild
A persistent wild with a counter that decreases each time it's part of a win, staying on the grid until the count reaches zero.
Cyclical Multiplier
A multiplier system where a multiplier is 'charged' over several spins, 'released' on a specific condition, and then resets to start a new cycle.
Dead Reel
A feature where, as an outcome of a special event (e.g., a "Mystery Duel"), an entire reel becomes inactive and empty ("Dead"), ceasing to participate in any further winning combinations or refills for the remainder of the current spin.
Dealer Feature
A special symbol that, when part of a winning cluster, applies its own multiplier to other multipliers within a specific area (e.g., a V-shaped area).
Destructive Symbols
Special symbols that appear after a winning cluster bursts, destroying other symbols on the grid in specific patterns (e.g., a line, adjacent symbols, or a random type) to facilitate new cascades, without acting as wilds or multipliers.
Direct Multiplier Payout
A unique payout system where the combination of number symbols on the reels itself becomes the win 'multiplier'.
Double Game Field
A bonus game mechanic that adds a second identical game field (board) to the main board, doubling the potential for symbol collection and allowing bonus features to trigger independently on each field.
Eclipse Feature Trigger
The Eclipse Feature Trigger is a bonus activation system that requires specific 'Moon' and 'Sun' symbols to align horizontally on the same row, with the intermediate symbol determining the type of bonus awarded.
End-Condition Free Spin
A type of free spins with no set number of spins, which instead ends when all of a specific 'end symbol' are collected.
Enhanced Cash Collect
An upgraded collection feature that maximizes wins by filling the reels with cash symbols and applying high multipliers.
Expanding Collector Reel
This feature transforms a single 'Collect' symbol into a full-reel collector upon landing, which then sweeps all visible cash prize symbols from other reels.
Expanding Paylines
A payout system where the reel size stays the same, but the number of lines recognized as a win increases.
Expanding Wild
A wild that appears in a single position and expands vertically to cover the entire reel.
Explosive Multiplier Symbol
A non-wild special symbol that explodes to destroy nearby symbols while adding a multiplier value to the total win.