Here is the full list of all 22 Workshop Simulator achievements.
Repair the Gramophone.
Repair the Sextant.
Repair the Chess set.
Repair the Scales.
Repair the Pinball table.
Experience gratitude.
Visit your Grandfather's grave.
Relax to some music in a rocking chair.
Repair the Musicbox.
Repair the Revolver.
Repair the Cash Register.
Repair the Sewing Machine.
Repair the Projector.
Repair the Sabre.
Buy a new tool for your workshop.
Fully upgrade your workshop.
Repair the Corn Crusher.
Earn $500 on a single item or commission.
Finish a commission.
Finish 15 commissions.
Repair the Mailbox.
Remove 1000 nails or screws.