The Terrormania Title update for RAGE 2 has 8 achievements.
Return the NECRODISC and stop the Skeletal Army
Complete Bonetower: Veritas
Complete Bonetower: Hellspring
Complete Bonetower: Furorem
Kill 100 Skeletons with the Sword Transitus
Complete Bonetower: Sensus
Complete Bonetower: Tristitia
Kill 25 airborne Skeletons with the Sword of Transitus