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.

Is Aux Battles the same as aux wars or the aux game?

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.

Do I need a Spotify account to play Aux Battles?

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, Aux Battles is completely free. There are no accounts, subscriptions, or in-app purchases. Just go to auxbattles.vercel.app and start playing.

Do I need to download an app to play Aux Battles?

No download is 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.

How do I join an Aux Battles game?

Go to auxbattles.vercel.app, click 'Join Room', enter the 4-letter room code shared by the host, and enter your display name. No account or login required.

How many players can play Aux Battles?

Aux Battles supports multiple players in real-time with no hard limit. It works best with 3–10 players and is ideal for house parties, friend group calls, or group chats.

Is Aux Battles a Music League alternative?

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

Is the voting anonymous?

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

Free · no login · instant

The free Music League alternative

Love the idea of Music League but don't want everyone to make an account and wait days for results? Aux Battles is the same core game — friends submit Spotify songs to a prompt and vote on each other's picks — but with no accounts, no cost, and rounds that play out live in minutes instead of over a week.

Paste a 4-letter room code into the group chat and everyone's in. It's built for the party that's happening right now, not the league that resolves next Friday.

Aux Battles vs Music League

	Aux Battles	Music League
Account required	None — just a name	Sign-up for every player
Cost	Free, no paywall	Free tier, paid upgrades
How long a round takes	Minutes — live in one sitting	Days — submissions then voting
Best for	Parties, calls, group chats — right now	Slow-burn leagues over weeks
Voting	Blind 1–5 stars, revealed after	Points spread across songs
Prompts	2,995+ built-in across 15 themes	Host writes each theme
Download	Runs in the browser	Runs in the browser
Music source	Spotify	Spotify

Music League is a trademark of its owner. Aux Battles is an independent game and is not affiliated with or endorsed by Music League.

When Aux Battles wins

Music League is great for a long-running league — a slow competition where a group submits songs over days and votes at their own pace. Aux Battles is built for the opposite moment: everyone's together right now, on a call or at a party, and you want a music game you can start in ten seconds without anyone signing up.

No accounts to create, nothing to install, and 2,995 prompts already loaded so no host has to write themes. New to the format? Here's how an aux battle works.