The two-disc vinyl soundtrack, composed by Nicolas de Ferran, ships from Microids Records. Soundtrack & Art Book downloadable content on Steam includes hundreds of illustrations, with the re-orchestrated game score performed by the Slovak National Symphony Orchestra.
They Are Billions is also available for PlayStation 4 and Xbox One consoles, along with Windows through Steam and GOG. The digital soundtrack is streaming on YouTube Music, Spotify, and Amazon Music Unlimited. Behind-the-scenes video "Recording the Final Swarm Theme" can be viewed on Numantian Games' YouTube channel, alongside an overview by the composer.
From the Nintendo Switch 2 product page:
They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?Microids Records - They Are Billions Vinyl Soundtrack
YouTube Music - They Are Billions Original Game Soundtrack
They Are Billions is NOW on Nintendo Switch 2!
— Numantian Games (@NumantianGames) January 22, 2026
✅ Joy-Con 2 mouse mode – plays like PC
✅ 100% identical to PC version
✅ Our most optimized build ever
The port that seemed impossible is finally here.
Available now on the Nintendo eShop! pic.twitter.com/yfYPuCBMuD


