A strange little side quest
Even a quick game like Red Boy and Blue Girl sits on top of decades — and sometimes centuries — of ideas. Alexey Pajitnov created Tetris in 1984 after drawing inspiration from pentomino puzzles, then simplified the idea around shapes made from four squares. Another piece of context lands nicely beside it: By 1987, fantasy role-playing had become a major computer-game direction, with Zelda, licensed Dungeons & Dragons games and other story-led adventures expanding the form. It is a good reminder that simple game mechanics can carry a surprising amount of history.