Here is the full list of all 46 The Dream Machine: Chapter 1 & 2 achievements.
Complete the game
Complete the sixth chapter
Circumnavigate yourself
Solve the maze puzzle
Find all map pieces
Appoint a new king
Return the locket
Meet an old friend
Get a new job
Wake up again
Complete the fifth chapter
Continue his work
Kill Martin's and Selma's tentacles
Steal from the dead
Restore the pumpkin kingdom
Find a secret glade
Make the witch's potion
Harass your neighbour, a lot
Purge the mover's dream
Complete the fourth chapter
Kill Edie's tentacle
Listen to the teddy bear's song
Be a peeping tom
Disrupt the tea party
Make sleeping powder
Flush every toilet
Complete the third chapter
Kill Alicia's tentacle
Save the bartender from dying
Get promoted to Command
Complete the blackmail letter
Commit arson
Complete the tasks
Complete the second chapter
Access Mr Morton's secret room
Kill Mr Morton's tentacle
Enter your first dream
Solve the gramophone puzzle prematurely
Try to escape your fate
Complete the first chapter
Solve the floor board puzzle
Explore the estate
Listen to your wife's dream
Escape the island