“ Frag like it’s 1996, this time with even more asses to kick! Join the world’s greatest action hero in Duke Nukem 3D: 20th Anniversary World Tour as he saves Earth once again, kicking alien ass and saving babes across the globe along the way. Do cheat codes disable achievements: No Does difficulty affect achievements: Yes Minimum number of playthroughs needed: N/A Approximate amount of time to 1000 : 2-4 hours, 10+ hours without Estimated achievement difficulty: 1/10