About the Game
You are a Tromboner…
It’s finally time to step up and fulfill your destiny in Trombone Champ: Unflattened! A rhythm game where every note, slide and triumphant toot is yours to command. With 58 unforgettable tracks, custom song support, campaign mode, collectible Tromboner Cards, and wild trombones with unique sounds to unlock, you’re not just playing along with the music—you’re creating it!
FIND YOUR GROOVE
Play the trombone your way—every note, every slide, every majestic honk is yours to control. You’re not just keeping up with the rhythm; you are the rhythm.
A ROAD PAVED IN BRASS
Toot your way through an all-new campaign packed with surprises, unlock fresh challenges, and climb the leaderboards on your way to glory.
HOARD OF HORNS
Amass a treasure trove of trombones, each one wilder than the last. With 25+ unique designs and new trombones regularly, there’s always another horn to hunt!
IF YOU PLAY YOUR CARDS RIGHT...
Build your ultimate deck with 50 Tromboner Cards packed with absurd trivia and legendary trombone lore.
Trombone Champ: Unflattened! lets you wield your virtual trombone across over 58 tracks, spanning anthems, marches, classical bangers, and folk classics. Each piece is handcrafted to keep you honking and sliding to your heart’s content, with plenty of surprises and unlockables along the way to keep you coming back for more.
Screenshots
7 images
Version Information
Steam Patch Notes
Official update history
🎺❄️ Welcome to Winter Wonderland in Trombone Champ: Unflattened! ❄️🎺
The holidays have arrived, and the Trombiverse is bursting with festive cheer! Throughout December, we’ll be unwrapping surprises almost every day. Look forward to festive treats like new songs to play, holiday-themed trombones to unlock, cozy winter pajamas, and plenty of seasonal spirit. The team at Flat2VR Studios has been working hard to ensure you have everything you'll need to Toot throughout the holidays!
Whether you’re playing “Silent Night” under twinkling lights or unlocking the sweet-sounding Gingerbread Trombone, there’s something merry waiting for you around every musical corner. So grab your trombone, deck the halls with honks of jolly, and make this season one to toot about! 🎄✨
Game version 01.010.382
Updates
- Pause screen no longer comes up in free improv, instead going straight to the main menu
- New winter environment
Bug Fixes
- Fixed issue where sometimes only a limited amount of a users custom songs would appear on the song list
- Fixed being able to grab pen/spray cans with the opposite hand while you're holding them, messing up the paint picker UI
- Added very slight rim shading to notes
- Updated appearance of campaign challenge progress indicators
- Improved the look of the final trombone you unlock in the campaign
- Brand new portal and higher quality environment in mixed reality
- Dynamic shadows for the main spotlight focused on the player
- New spray can models in trombone customization
- New "textured spray" can which you can use to recolor a trombone without changing the actual texture
- Improvements to how notes are synchronized with the music
- Notes now scroll in before the song starts instead of being present right when the curtains open
Current Release
Build 21754671
Uploaded Jul 09, 2026
System Requirements
How to Install
TromboneChampUnflattened.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
1.4 GB
21754671
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Download Trombone Champ: Unflattened for PC with a direct link or via torrent. Get the full version of Trombone Champ: Unflattened for free. Trombone Champ: Unflattened is a Casual released by Flat2VR Studios.