Note that classical pixel art was not necessary particularly fat/blocky. Since SVGA become common, games like SimCity 2000 or Transport Tycoon Deluxe run in 640x480 on 14" CRT, which is ~60 DPI. Later (in second half of 1990s), higher resolution became common, but also higher screen sizes, so DPI was in 70-80 range. That is not really that different from full HD on 24" LCD (~92 DPI), which dominated later era.