How muting a game's sound effects can detract from the entire playing experience.

Scrambled letters crowd your screen. You swipe your finger over a familiar combination: M-A-G-N-E-T. Each subsequent letter sounds a crisp “tick.” When the word registers, a high-pitched “ding” signals the find. Then you notice something; you touch the adjacent I-C, and finally release your finger. Letters forming MAGNETIC disappear one by one as an ascending arpeggio rings out. The remaining letter tiles fall into place like Tetris blocks, each clattering down with tiny thuds. These are the sounds of Zach Gage’s SpellTower.

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