Six 3D arenas run around the clock, each with one live match that everyone watching sees at the same moment. The same crew of 15 voxel characters plays every game, and every round starts even.

Start in three steps

1

Open Basement

Go to basement.fun on your phone or computer. There's no sign-up, and you usually start with 10,000 free play credits.

2

Pick who wins

Tap a side in the strip at the bottom of a card, or in the bet slip on a computer, then tap Bet. Picks lock just before GO.

3

Drop chaos and watch

While the match is live, tap the lightning bolt to send a random boost or hazard at a random competitor. Your first 3 Drops each day are free.

Live three-a-side Skyball card at 1-2 with a GOAL burst, the Drop, React, Sound and Share buttons on the right and the Up next strip at the bottom
A live Skyball match in the feed

On a computer, Basement shows every arena at once, with the match on a big stage and a bet slip beside it. See Basement on a computer.

Play credits and real B3

Play credits are free. They have no cash value, never turn into B3, and you can claim more every day.

Real B3 is a crypto token, and a B3 pick is a bet you can lose. It's for adults 18 and over who accept the terms in the app, and it isn't offered in every region. Read how real B3 works and play responsibly before you try it.

Guides

Quickstart

Make your first pick in under a minute.

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The games

Six arenas, from kart races to sea battles.

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How picks work

What each game pays, and the limits.

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Drops

Throw a random boost or hazard into a live match.

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Provably fair

Each round's seed is locked in before picks open.

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Real B3

How B3 play works and who can use it.

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Note

Used Basement before it changed? The game launcher, developer API, staking games and quests are covered on the previous Basement.

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