A strange little side quest
Zoom out from Railway Mysteries for a moment and the timeline gets surprisingly deep. Alexey Pajitnov created Tetris in 1984 after drawing inspiration from pentomino puzzles, then simplified the idea around shapes made from four squares. The surprising part is how quickly the next milestone followed. Street Fighter II, released in 1991, turned head-to-head arcade fighting into a worldwide phenomenon and helped define the modern fighting-game genre. That history is one reason familiar mechanics can still feel new when they are recombined well.
