Oval Software
Waterfall - The Drinking Game app icon for iOS

Waterfall - The Drinking Game

King's Cup / Circle of Death with customizable rules for every card

Entertainment · Games

Download on the App Store

King’s Cup, Waterfall, Circle of Death, Ring of Fire — whatever you call it, it is the most popular card drinking game in the world. This app replaces the deck of cards and comes with the standard rules built in, or you can set your own rules for every card.

King’s Cup Rules (Standard)

For those who need a refresher, here is how the classic game works. Players sit in a circle and take turns drawing cards. Each card has a rule:

  • Ace — Waterfall (everyone starts drinking; you can only stop when the person before you stops)
  • 2 — You (pick someone to drink)
  • 3 — Me (you drink)
  • 4 — Floor (last person to touch the floor drinks)
  • 5 — Guys (all guys drink)
  • 6 — Chicks (all girls drink)
  • 7 — Heaven (last person to point up drinks)
  • 8 — Mate (pick a drinking buddy)
  • 9 — Rhyme (say a word, go around the circle rhyming)
  • 10 — Categories (pick a category, go around naming items)
  • Jack — Make a rule
  • Queen — Question master
  • King — Pour into the King’s Cup; the 4th King drinks it

How to Customize the Rules

Not everyone plays by the same rules. In this app, you can tap any card and rewrite its rule to match how your group plays. Your custom rules are saved for next time.

Why Use an App Instead of Cards?

  • No need to find a deck of cards at the party
  • New players can tap a card to read the rule
  • Custom rules mean your house rules are always saved
  • Works great as a pre-game before going out

Screenshots

King's Cup card draw showing the Waterfall rule Custom rule editor for each card in King's Cup Circle of Death game in progress with cards drawn King's Cup rules reference card

Frequently Asked Questions

What are the rules for King’s Cup? Each card has a different rule — Ace is Waterfall, 2 is You, 3 is Me, and so on. The full standard rules are built into the app, or you can set your own.

Can I change the rules? Yes. Tap any card to rewrite its rule. Your custom rules are saved between sessions.

What is the difference between King’s Cup, Waterfall, and Circle of Death? They are the same game with different names depending on where you are. Some groups have slightly different rules for certain cards, which is why the app lets you customize them.

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