Here is the full list of all 44 Niko: Through The Dream achievements.
Finish Chapter 18
Finish Chapters 16-17
Complete all puzzles in Chapter 16
Find the Teddy Bear in Chapter 16
Finish Chapters 14-15
Find the Teddy Bear in Chapter 14
Finish Chapters 12-13
Find the Teddy Bear in Chapter 12
Finish Chapters 10-11
Find the Teddy Bear in Chapter 11
Solve all puzzles in Chapter 11
Finish Chapters 08-09
Find all the parts of the parchtment scroll in Chapter 09
Find the Teddy Bear in Chapter 09
Find the Teddy Bear in Chapter 08
Finish Chapters 06-07
Find the Teddy Bear in Chapter 07
Finish Chapters 04-05
Collect all Diamonds in Chapter 05
Find the Teddy Bear in Chapter 05
Jump into the void from the highest place
Find the Teddy Bear in Chapter 04
Finish Chapters 02-03
Find the Teddy Bear in Chapter 03
Find the Teddy Bear in Chapter 02
Finish Chapter 01
Find the Teddy Bear in Chapter 01
Complete Chapter 02 in less than 4'30"
Complete Chapter 04 in less than 4'30"
Complete Chapter 10 in less than 5'20"
Fully solve Chapter 06 puzzle
Collect all Cubes in Chapter 08
Find 5 cards in Chapter 15
Complete the first section of chapter 07 without dying
Complete Chapter 09 without being seen
Find Niko's Secret in Chapter 14
Find all the parts of the parchtment scroll in Chapter 01
Complete the piano sequence in Chapter 07
Find the Teddy Bear in Chapter 06
Find the Teddy Bear in Chapter 10
Find the Teddy Bear in Chapter 13
Find the Teddy Bear in Chapter 15
Find the Teddy Bear in Chapter 17
Find the Teddy Bear in Chapter 18