Here is the full list of all 49 A Trip to Yugoslavia: Directors Cut achievements.
Ghost town?
Survive the final attack
They surely have too much, right?
Find a place to spend the night
Time to play gravedigger...
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...
Complete the game without dying
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
Give up...
Pick every decision that will get you killed
Show them what you think
You've uncovered all ATtY secrets. You're awesome!
That's the last time you see those leaves...
That's why he's moving like that. He needs a few minutes.
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...
At least you saved his life.
You survived, but you'll be remembered as a traitor.
Was it worth it?
Die three times during tutorial.