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