The PAYDAY Add-on for Goat Simulator has 18 achievements.
A Trip to the Moon.
Just finish that one LAST job.
Use a cannon to travel to the Island in the Sky.
Show off your vehicle air control skills in the desert.
Listen to the whole pan flute song.
Spray the dancers using Humphrey Ciabatta.
Headbutt someone out of their car, then run them over!
Gather the crew for some drive-in movies.
Enable the hydraulic cars.
Lick all crew members together to form a Goatipede.
Charm a cow using Valentino Salami.
Use Dolph Spaghetti to lift a crewmember on top of the tallest building.
Find all the trophies on the Payday Level.
Win 3 hands at a Blackjack table.
Throw 5 police officers into prison.
Wear 30 masks at once.
Hogtie 50 NPCs.
Place a Hogtied NPC on the train tracks.