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