... | File: Duke.nukem.zip

Back in 1991, Apogee Software released Duke Nukem (initially spelled "Duke Nukum" due to a potential trademark conflict). The distribution model was simple but genius: download the first episode for free via a .zip file, and if you loved it, you’d mail in a check to unlock the rest of the adventure.

The "Shrapnel City" and "Moonbase" environments felt massive and full of secrets. File: Duke.Nukem.zip ...

Unlike other platformers of the time, Duke Nukem felt gritty and interactive. You weren’t just jumping on turtles; you were: Back in 1991, Apogee Software released Duke Nukem