Editions: 2 Half-Life (1988), Half-Life 2 (2004)

Publisher: Sierra Entertainment

Valve's iconic shooter introduced us to one of everyone's favorite silent protagonists (and resident badass) Gordon Freeman, as well as an unforgettable tale that fans are still clamoring for more of years later. Believable and likeable characters, epic shootouts, and Valve's signature touches make Half-Life a memorable play no matter when you go back to it.