Complex sentence: It was also the last King's Quest to have a stand alone EGA release at 320x200, dual VGA/EGA versions of the game turned the 256 colour graphics into 16 colour at 640x400 resolution.
Split into simpler sentences: It was also the last King's Quest to have a stand alone EGA release at 320x200. Dual VGA/EGA versions of the game turned the 256 colour graphics into 16 colour at 640x400 resolution.