The Last Sky achievements

Blow out the candle.

Examine your ring.

Build the toy plane.

Play something on the gramophone.

Solve every star constellation at least once.

Complete the game with the "Samsara" ending.

Finish playing the piano.

Read every book on your desk.

Complete the game with the "Nirvana" ending.

Light the fireplace.

Complete the game with the "Nirvana" ending in under 30 minutes.

Clean up all your toys.