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