War

Public domain classic

The simplest card game there is. Flip, compare and hope.

How to play and win: Play the Card Game War Online Free

War

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How it was vibe coded

ToolCodex
Rounds of changes: 1
Built on2026-10-15

The opening prompt

Make the card game War. A standard deck is split between you and the computer. Both flip the top card and the higher card (ace high) takes both. A tie starts a war: three cards face down and one face up, and wars can chain. The game ends when one player holds every card. To keep it from running forever, won cards go to the bottom of the winner's pile in a shuffled order, and after 5,000 flips the player with more cards wins. Include tap or Space to flip, an auto-play toggle, a fast mode, and a stats panel with cards each, wars won, and longest war. Make the flips and the war stack look good.

What we learned

  • Built in one pass, then checked with scripted tests for scoring, restarts and screen sizes.

Game controls

  • Tap Flip or press Space
  • Turn on auto-play to watch a whole game
  • Fast mode skips the animation

The game brief includes touch controls for phones.

Open the game on its own

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