The Chaos Rising Add-on for Dead Rising 3 has 9 achievements worth 90 gamerscore.
Survive Spider's trial
Escape Los Perdidos Police Department
Destroy all Emergency Phones
Collect all bottles of Special Reserve Whiskey
Collect all Custom Motorcycles for Torque
Help Torque build a special bike
Defeat all the Captains
Obtain Torque's surprise
Complete Dead Rising 3: Chaos Rising