A great time to join the Good Old Games as it’s free for the next 48 hours :P Just make an account and get it, or if you don’t wanna, just tell me and I’ll gift it to ya. These guys are really cool in terms of NO annoying DRM stuff, you just login, download it how many times you want, whenever you want.
As for this game, well, it’s got all the episodes of the original plus a 4th bonus one… or in GoG’s words:
What’s cool about it:
The most legendary first person perspective shooter featuring Duke Nukem, one of the most iconic characters of all time
Memorable, cheesy and just plain awesome one-liners
A wide variety of weapons, including the Shrink Ray and Duke’s Mighty Foot