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