Full list of all 27 Duke Nukem 3D: 20th Anniversary World Tour achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Step in a pile of excrement.
Find Sam in "Mirage Barrage".
Find Luke in the Level "Lunar Reactor".
Kill 1000 enemies.
Burn 50 bad guys to death.
Find 70 secret areas.
Step on 40 enemies after using the Shrinker on them.
Use the hookah in High Times.
Kill a Firefly Trooper while it's flying small.
Kill 5 bad guys with one shot.
Complete "Alien World Order" on any difficulty.
Kill 10 bad guys in 10 seconds while on steroids.
Complete "The Birth" on any difficulty.
Complete "Shrapnel City" on any difficulty.
Complete "Lunar Apocalypse" on any difficulty.
Use the Incinerator
Listen to Developer Commentary (Use at least one trigger).
Complete "L.A. Meltdown" on any difficulty.
Carry all weapons with ammo at once.
Use a cheat code.
Find any secret level.
Find the Doomguy in the Level "Death Row".
Tip an exotic dancer.
Finish any level on "Damn, I'm Good" difficulty.
Finish the "Hollywood Holocaust" level in under 3 minutes.
Kill every enemy on a level.
Find a secret area.