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