Here is the full list of all 16 Claw Machine Sim achievements.
Move the crane 10 meters
Move the crane 100 meters
Move the crane 1000 meters
Use the virtual claw machine 100 times
Use the virtual claw machine 1000 times
Collect all prizes in the fun difficulty
Collect all prizes from a collection
Win your first prize
Win 2 prizes back to back
Win 3 prizes back to back
Win 2 prizes at the same time
Win a prize in the realistic difficulty
Unlock all prizes in a collection in the realistic difficulty
Unlock all prizes in the realistic difficulty
Don't win a prize 10 tries in a row
Start the game. I mean you already paid for it!