Full list of all 62 Duke Nukem Forever achievements. It takes around 20-25 hours to unlock all of the achievements in the base game on Windows.
The base game contains 50 achievements, and there is 1 DLC pack containing 12 achievements.
Kill 10 expanded enemies with melee attacks
Kill 3 enemies within 3 seconds with the Impregnader
Let 20 enemies die by someone else's hand
Kill 30 enemies with the moon rover
Earn a 1,000,000 pinball score on the Scientits pinball machine
Finish Doctor Proton
Beat the DLC campaign on Easy Difficulty
Beat the DLC campaign on Normal Difficulty
Beat the DLC campaign on Hard Difficulty
Beat the DLC campaign on Expert Difficulty
Discover all Ego cap rewards in the DLC campaign
Discover and reject the video game that lets you slap women