The Realm of Regret is a Torment difficulty secret area accessible by using the Infernal Machine of Regret in the Heretic's Abode.
▪ In New Tristram, enter the Heretic's Abode.
▪ In the Abode, use an Infernal Machine of Regret to open a portal to The Realm of Regret.
▪ The King of the Dead
▪ The Merciless Witch
▪ Skeletal Bowmaster
▪ Skeletal Raider
▪ Thrall of the Witch