The Wallace & Gromit Special Pack Add-on for PowerWash Simulator has 10 achievements.
Complete the Wallace & Gromit's Dining Room & Kitchen job
Complete the Wallace & Gromit's House job
Complete the Knit-O-Matic job
Complete the Wallace & Gromit's Vehicles job
Complete the Moon Rocket job
In the Wallace & Gromit's Dining Room & Kitchen job, activate the Toy Train
In the Wallace & Gromit's House job, roll the football under the pond
In the Knit-O-Matic job, activate the Auto-Wash
In the Wallace & Gromit's Vehicles job, clean the Techno Trousers first
In the Moon Rocket job, clean the paintings inside the rocket first