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