This is the Underforge, A mod that adds you're favorite items and more from Undertale.
Which adds the following,
7 Undertale Souls, (Determination, Bravery, Justice, Kindness, Integrity, Patience, Perseverance.)
9 Unique Weapons, (Dagger, Tough Glove, Scythe, Empty Guns [And Bullets], A Pan, High Heel, Toy Knife, Notebook, Hatred Knife.)
2 Unique Souls, (Fear Soul, Hate Soul.)
