Here is the full list of all 12 Sign Craft: Simulator achievements.
Start any game mode.
Throw a trashball into the trash can.
Make a trashball shot from at least 30 feet (or 9.144 meters) away.
Pick up the Broom, switch the tool mode to "Down" and sweep up your first dust pile!
Place a pile of aluminum dust in the microwave and let it whirl!
Go to the "Sandwich Game" arcade cabinet and build your first sandwich!
Reach level 10 of the Sandwich Game.
Get 500 score (in one life) in the Sandwich Game.
Get 1,000 score (in one life) in the Sandwich Game.
Reach level 20 of the Sandwich Game.
Get 2,000 score (in one life) in the Sandwich Game.
When starting a new job mode file, talk to the cat until she falls asleep.