My original plan was to write a text guide, but there's little to describe in the game other than basic directions so I figured videos would be easier. Given how slow the game is, I recommend watching these at 2x (or even 3x) speed.

Silent World has 8 easy achievements:


There are 4 achievements for completion. One achievement per chapter.


There are 3 achievements for different deaths:

• "Trap!" unlocks for dying to a trap. First possible on Stage 1-2.
  
• "Monster!" unlocks for dying to a monster. First possible on Stage 1-3.
  
• "Falling~" unlocks for dying from a fall of greater than one floor. First possible on Stage 2-1.

"Match!" unlocks for lighting a match. First possible on Stage 1-2. While most matches are hidden in optional sections of a stage, several are unmissable so just use those when available.

https://www.youtube.com/playlist?list=PLgQ2X4jgpww31Q_lPVzKbatnzOMLwYYoJ