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The Vault

🎮 Play 🏅 Career 🎨 Vault ⚙ Settings

Unlock table themes and card backs as you level up.

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⚔️ Battle
🃏 Classic
☠️ Extreme
🌪️ Chaos
🏠 House Rules
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Crazy Eights online
No Mercy card game
Flip card game
7-0 rule
2-player card game
Pass & Play
Pyramid puzzles

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Crazy Eights rules
Stacking rules
No Mercy rules explained
The 7-0 rule
The Jump-In rule
Calling your last card
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© 2026 DixonAppStudio LLC. Prism Riot is an original card game. It is not affiliated with, endorsed by or sponsored by Mattel; UNO® is a trademark of Mattel, Inc. and is mentioned only to describe comparable rules.