Empty House

No one will use this anymore...

Inspecting the stove after killing Toriel

Empty House is the 16th track of the Undertale Demo OST, and is not listed in the UNDERTALE Soundtrack. It plays in Toriel's Home after Toriel is killed. It is a version of Fallen Down, slowed down to 0.4 speed relative to the in-game file.

In Undertale, it still plays in Toriel's Home after Toriel is killed. It plays quietly when the protagonist enters the home, and plays at an even softer, barely audible volume in other rooms. In the guest room, falling asleep on the bed or simply turning off the lamp plays the song at a normal volume. The song stops playing after turning on the lamp, and resumes playing after exiting the guest room.