Gnomes and Giants uses a 6x6 reel layout with 50 paylines where standard wins form from left to right. The base game introduces oversized monster blocks that can land on any spin, covering multiple positions and transforming adjacent spaces into winning combinations. Synced blocks frequently appear to coordinate matching symbols across the board, maintaining steady action between feature triggers.

The main bonus round centers around free spins where an increasing win multiplier builds progressively with each scatter collected. Additional mechanics include expanding symbols and optional feature buy options for direct access to the bonus round. This high volatility setup suits players who prefer risk and reward balanced around substantial multipliers.