Influencing Game Design: The “Book” Influence
One of its most significant, though less obvious, milestones is its deep impact on slot design. Its success created a whole new type of “Book” slots. This includes Play’n GO’s own expanding Rich Wilde collection, but also a wave of games from other creators who copied its core system. The blueprint became typical: a special “book” scatter triggers free spins with one randomly chosen expanding symbol. This broad emulation is the clearest record of its impact. It proved the design was not just a success, but fundamentally engaging and deserving emulating.