Blizzard’s designers had originally built Diablo III’s difficulty system to mirror Diablo II. You’d play through the full game once on Normal mode, then play it a second time on the challenging Nightmare mode, and crank through a third time on Hell mode. Diablo III repeated that structure and introduced a fourth difficulty option, Inferno. Designed for players who had already hit the level cap, Inferno was blisteringly tough, to the point where you couldn’t beat it without the game’s best gear. But Diablo III’s best gear dropped only when you played on Inferno mode, creating a nasty, demonic
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