Here is the full list of all 19 Code S-44: Episode 1 achievements.
Complete the Tutorial
Complete the Level 1
Complete the Level 2
Complete the Level 3
Complete the Level 4
Complete the Level 5
Complete all Levels
Listen the conversation between Sem & Sem in the Level 1
Save the workers in the Level 2
Trap a guard in the golf in the Level 3
Find the missing bird and bring him back to his family in the Level 4
Climp the complex
Discover the first blue window
Discover all the windows of the level 1
Discover all the windows of the level 2
Discover all the windows of the level 3
Discover all the windows of the level 4
Discover all the windows of the level 5
Discover each windows and the specific success