What happens on the card

Pull the cupcake back in the slingshot with a finger, aim, and let go. The tower is real physics: planks topple, presents tumble, and a cloud hit hard enough goes poof. Each shot that lands shakes the rest loose, and a lucky one brings the whole tower down. Kind as a birthday should be: after four shots the clouds that are left give up and float away by themselves. When the last one is gone, their age drops from the sky in big gold numbers, confetti, and Happy Birthday.

Who it is for

Anyone who spent a whole year flinging birds at towers, kids who love knocking things down, physics teachers, and the friend who always aims before they throw.

What to write in a catapult birthday card

The message is yours. If you need a start, these fit this card:

  • “Happy birthday! Aim high and let go.”
  • “Knock this year down, one grumpy cloud at a time.”
  • “You never miss. Have a brilliant birthday.”

How to send it

  1. Tap Make this card: the card opens with this game.
  2. Type their first name, their age and your message. The card updates as you type.
  3. Send the link on WhatsApp, by text or by email. You are told when they open it.

Questions

Can I personalise this catapult birthday card?

Yes. Their first name and age are written into the game itself, and you choose the title, the message, a P.S., the celebration at the end, the colours and the fonts. You can also switch to any of the other 43 games without losing your words.

How much does a catapult birthday card cost?

Making and previewing it is free. Sending it costs 2.60 € in the euro zone, £2.20 in the United Kingdom and $2.90 everywhere else, once, with no subscription.

How do I send a catapult birthday card?

As a link, on WhatsApp, by text or by email. It opens in their browser, on a phone or a computer, with no app and no account, and the link does not expire.

Can they lose the game?

No. Every game lasts about twenty seconds and always ends on the birthday cake with their name, whatever they do. A score is shown at the end, just for fun.

Also known as: slingshot birthday card, physics game birthday card, knock down birthday card, tower birthday card.