Concept design — play money only. No bitcoin is wagered on this site.

btc.tennis

Concept · Pong with a 100-sat stake

Rally. Win. Stack.

Pong on a tennis court, with 100 sats on every game. Beat the CPU today; take on strangers when player-versus-player arrives. For now every sat is a demo sat.

Play the CPU How it works

Play

You vs. the CPU

Stake 100 demo sats. The CPU matches it. Win one game of tennis-scored Pong and the 200-sat pot is yours.

Demo balance1,000 sats
Stake100 sats
Pot0 sats

Stake 100 sats to start

First to win the game takes the pot: 15, 30, 40, deuce, advantage, game.

Move with your mouse, finger, or the arrow keys (W/S or A/D also work). Space or P pauses. Leaving mid-game forfeits the stake.

How it works

One game, one pot

  1. 01

    Stake

    You put in 100 sats and your opponent matches it. Both stakes sit in the pot until the game ends.

  2. 02

    Rally

    Angle the ball off the edge of your paddle. Every return is a little faster than the last.

  3. 03

    Score like tennis

    15, 30, 40. At 40–40 it's deuce, and you need two points in a row to win the game.

  4. 04

    Settle

    Winner takes the 200-sat pot. In this concept it lands in your demo balance — no real bitcoin moves.

Coming next

Strangers, not just silicon

The plan is player-versus-player: get matched with someone at your level and play for a real 100-sat stake. It's a plan, not a promise — real-money play would only launch where it's legal and after a proper review.

  • Matchmaking by level. Rookie, Club, and Pro queues, so every rally is a fair one.
  • Lightning stakes. Both players pay a small invoice before the serve; the winner is paid the moment the game ends.
  • Server-side physics. The ball lives on the server, not in either player's browser, so nobody can nudge it.
  • Fair disconnects. Drop out mid-game and the point clock keeps running — reconnect fast or concede.

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