The Sign of the Times Add-on for Mafia III: Definitive Edition has 10 achievements worth 320 gamerscore.
Fully renovate Sammy's
Protect Sammy's from the Dixie Mafia
Begin Sammy's Renovation
Completed "…Worse Than Dying"
Investigate the 3 "Places of Darkness"
Complete "Covered in Blood"
Complete "A Little Closure"
Kill 4 enemies using Slow-Mo Shooting 10 Times
Kill 20 enemies using Throwing Knives
Drive a distance of 50 km in the Samson Harrier