Aux Battles — Free Multiplayer Music Battle Game

Aux Battles is a free multiplayer music battle game powered by Spotify — also known as aux wars or the aux game. Players pick a random topic, submit their best matching song, and vote on each other's picks 1–5 stars. The highest-rated song wins the round.

Yes. Aux war, aux wars, auxwars, and "the aux game" are all names for the same thing — a song battle with friends where everyone submits a track to a prompt and votes on the best pick. Different friend groups use different names; Aux Battles is all of them.

Spotify Premium is required to submit and play songs during battles. However, players who only want to listen and vote can join without a Spotify account.

Yes, completely free. No accounts, subscriptions, or in-app purchases. Just go to auxbattles.vercel.app and start playing.

No download required. Aux Battles runs entirely in your web browser on desktop and mobile. You do need the Spotify app installed to play music during battles.

Click "Join Room", enter the 4-letter room code shared by the host, and enter your display name. No account or login required.

No hard limit. It works best with 3–10 players and is ideal for house parties, friend group calls, or group chats.

Yes. It's a free, no-login alternative to Music League and similar song-submission voting games. Friends submit Spotify songs to a prompt and vote on each other's picks — but there are no accounts, and rounds play out live in minutes instead of over days.

Yes. Voting is blind — when you rate a song you can't see who submitted it. Names are only revealed once the votes are in, so picks are judged on the music alone.