KAPUTT! — Roll. Reveal. Rival.

Roll. Reveal. Rival.

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PLAYER 2

0 / 100

KAPUTTS 0/5

NUMBER TO BEAT

READY TO ROLL?

Two dice. One decision.

YOUR TURN

0 / 100

KAPUTTS 0/5

ROTATE YOUR DEVICE

KAPUTT! plays in portrait mode.

GAME MENU

Simulation lab→

K3-E1 · Extremes ruleset

NEW MATCH

Your name Player 2 name Opponent

First to Kaputt limit

Starting number to beat

LLM PLAYER

Provider Model Temperature API key

Keys stay in this browser and are never saved with matches.

PLAY TOGETHER, ANYWHERE

Create a room, then send the four-character code to a friend. The host chooses the match rules.

Or join a friend’s room

Open online KAPUTT

Roll. Reveal either die. Make your call.

HOW TO PLAY

Roll both dice. Both results stay hidden.
Tap either die. You decide which one to reveal first.
Choose Attack or Defense. Your choice is locked before the second reveal.
Reveal the other die. See your result, then pass the turn.

ATTACK ×

Multiply the dice. The result must be strictly greater than the Number to Beat. Score the result and set it as the new target. Otherwise, score nothing and take one Kaputt; the target stays put.

DEFENSE +

Score the higher die, set the target to the sum, and take no Kaputt.

THE EXTREME: 1 & 6

Attack becomes 36. Defense sets the target to 2 and scores 1. An Attack of 36 still fails against a target of 36. Doubles are normal rolls.

THE WIN

Reach the score target, or let your opponent reach the Kaputt limit. The default is first to 100; five Kaputts and out.

MATCH LAB

CONDITIONAL DECISION MATRIX

Metric	Attack	Defense

EVENT LOG

Match started.

PASS THE DEVICE

Player 2, you’re up.

The previous roll is cleared. Ready for your turn?

YOUR ONLINE ROOM

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Your opponent will see that you left. Recorded turns stay saved.

YOUR PROFILE

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This name appears on the leaderboard and in online matches. Stored in this browser only.

LEADERBOARD

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BADGES

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Ranked by wins, then win rate. Periods use UTC; weeks start Monday. Badges cover all time.