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