Gaming Machine Wild Symbol Stacking Mechanism

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Solution Overview

Problem

Traditional slot machines lack features that enhance player engagement and opportunities for winning, limiting player interest and casino revenue potential.

Innovation Solution

A system that determines a trigger event during a base game, awards a bonus game with special symbols on each reel, and iteratively stacks or adds wild symbols until all reels contain stacked wild symbols, increasing the number of symbols and potential payouts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional slot machines use fixed patterns of symbols on reels, then the game structure is simple and easy to manufacture, but player engagement and winning opportunities are limited

Engineering Contradiction:
Improveplayer engagement and winning opportunitiesVSAvoidgame structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic symbol manipulation during the bonus game, where wild symbols are automatically stacked on reels when bonus symbols appear. This transforms the static reel structure into a dynamic system that changes during gameplay, creating varied winning opportunities without requiring multiple physical reels for each configuration

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent adds a temporal dimension to symbol arrangement by implementing multi-stage bonus games where symbols are stacked sequentially across different time steps. This transforms the traditional single-state reel configuration into a multi-state progression, enhancing player engagement through evolving game dynamics

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If slot machines incorporate multiple features like wild symbols and bonus games, then player interest and revenue potential increase, but the game mechanics and rules become more complex

Engineering Contradiction:
Improvecasino revenue potentialVSAvoidgame mechanics complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent makes wild symbols multi-functional by enabling them to serve both as traditional substitutes for other symbols and as stackable elements that can accumulate on reels during bonus games. This universal functionality allows a single symbol type to drive multiple game mechanics, reducing the need for separate specialized symbols for each feature

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent implements self-service mechanics where the stacking of wild symbols occurs automatically based on predetermined rules when bonus symbols appear, without requiring additional player actions or complex manual configuration. This automates the enhancement of winning opportunities while maintaining clear, simple rules for players

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS9934646B2Gaming machine with rearrangement of wild symbols
Publication Date: 2018.04.03 GAMES GLOBAL OPERATIONS LTD
  • US9934646B2 patent drawing
  • US9934646B2 patent drawing
  • US9934646B2 patent drawing

AI summary

A gaming machine may determine that a trigger event for a bonus game occurred during a base outcome event of a base game. The base game and the bonus game may both be reel-based games being executed on behalf of a client machine. The symbols on each reel may include at least two unstacked wild symbols. In response to determining that the trigger event occurred, an instance of the bonus game may be awarded. A special symbol may be included on each reel for the bonus game. Until all of the reels contain stacked wild symbols, iterations of bonus game operations may be repeatedly carried out. These operations may include determining a symbol set for display on the plurality of reels, where any special symbol appearing on a particular reel results in the wild symbols on the particular reel being stacked.