Introduced in the spring of 1995, Sega's Saturn, a 32-bit system with more RAM and a CD drive, wooed many gamers from 16-bit rivals. With 3D graphics and digital sound, the Saturn initially did well, selling 100,000 units in the first three days, according to Sega. Over time the system did not do as well as expected and was overshadowed by Sony's PlayStation, released in the U.S. later in the year.