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