But even the clones, until the mid nineties, had at most a SuperVGA video card, which was little better than the annoying IBM VGA video card, which was certainly not designed for games.
Also, the clones had nothing better than the PC speaker for audio, even if that could be used very creatively by games like Monkey Island. The PC speaker was most definitely not designed for games.
The SoundBlaster cards can be said to have been designed for games, but they were a separate product that could be bought as an add-on for IBM PCs or clones.
Only during the second half of the nineties, after Windows 95, IBM PC clones with video cards and audio cards really suitable for games have become common.