Collector is an achievement that can be unlocked in Among the Sleep.
How To Unlock[]
There are 50 collectibles in the game in the form of drawings. There are 10 drawings each in Chapters 2 through 5 (there are none in Chapter 1). When you find one, just press to pick it up and will save automatically. When you’ve collected all 10 drawings for a specific chapter, that chapter’s individual achievement will unlock.
After you complete the game, there is an additional chapter called ‘Prologue.’ It is only accessed from the main menu by choosing Chapter Selection then Prologue. This chapter also has 10 drawings to collect which is required for this achievement.
If you happen to miss any drawings in your playthrough, as previously mentioned, there is a chapter select. If the individual chapter achievement hasn’t unlocked, then you know you are missing one or more in that specific chapter.
Once you have collected all 50 drawings, the achievement will unlock.
