Here is the full list of all 49 A Trip to Yugoslavia: Directors Cut achievements.
At least you saved his life.
Give up...
That's why he's moving like that. He needs a few minutes.
Complete the game without dying
Ghost town?
Survive the final attack
They surely have too much, right?
Find a place to spend the night
Time to play gravedigger...
Show them what you think
Escape from the forest
Escape from the building
Meet your inevitable end
Complete deleted chase scene and interactive trailer
Fine, you got me...
Too bad you got shot...
Find all the little aliens. You can interact with 12 of them. Group counts as well!
Maybe he was telling the truth?
View all the extras
Pick every decision that will get you killed
You've uncovered all ATtY secrets. You're awesome!
That's the last time you see those leaves...
Unlock all the extras
Keep you eyes peeled. Something's not right in the background...
He's always watching... Even if you're playing a different game!
That was a good fight
He was stronger than you...
You survived, but you'll be remembered as a traitor.
Was it worth it?
Die three times during tutorial.