Video Game Data

Six Legendary Tracks. One Unstable Trombone. The UNDERTALE + DELTARUNE Song Pack brings a whole new level of chaos (and possibly spiritual awakening) to your trombone.

Developer: Flat2VR Studios Holy Wow Studios LLC

Publisher: Flat2VR Studios

Release Date: Aug. 12, 2025

Genres: Casual Indie

Tags: 3D 6DOF Casual Cats Collectathon Comedy Cute Family Friendly First-Person Funny Immersive Sim Indie Instrumental Music Memes Music Rhythm Singleplayer Trading VR

Reviews: 1 (Followers)

Followers: 895

Price:
USD: $7.99

Platforms: Windows

Languages: English*

Steam Achievements: None

Estimated Sales: $239

Trombone Champ: Unflattened - UNDERTALE + DELTARUNE Song Pack on Steam

Categories: Downloadable Content Family Sharing Single-player Steam Achievements Steam Cloud Steam Leaderboards