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This DLC song pack brings 14 songs from the UNDERTALE and DELTARUNE Soundtracks to Trombone Champ!
Also known as: Trombone Champ: UNDERTALE + DELTARUNE Song Pack
December 18, 2025
Trombone Champ: Undertale + Deltarune was released on December 18, 2025.
Trombone Champ: Undertale + Deltarune is available on PC (Microsoft Windows), Mac.
No — Trombone Champ: Undertale + Deltarune is a single-player game.
Trombone Champ: Undertale + Deltarune was developed by Holy Wow Studios.