Set in Raccoon City before and during the events of Resident Evil 2, it stars original Resident Evil co-lead Jill Valentine in her attempt to escape Raccoon City. Originally conceived as a spin-off by Capcom, it pivoted to being a true sequel, its status as a numbered entry in the series a byproduct of, apparently, keeping the then-PlayStation exclusive titles consistent. Resident Evil 3: Nemesis originally released in 1999 on PlayStation, though I didn't play it until many years later, thanks to a PS1 memory card stuck into my PS2.
Growing up, I remember two very frustrating games that I was probably too young to be playing anyways.