Anything Goes Duel
Two players, every card is legal. Free in your browser, no download.
About Anything Goes Duel
Anything Goes Duel: Two players, every card is legal. Extreme tables add one of the three rule packs — Merciless, Eclipse or Eruption — or throw all of them at once.
The table
2 players: you and 1 computer rival. Everyone starts with 7 cards.
Sharp rivals shed high-value cards first, save their wilds for the end and keep the colour they hold most of alive. They are the standard opponent.
The deck
The table uses the 126-card Prism deck: numbers 0–9 in four energies (Flare ▲, Surge ●, Volt ◆, Void ■), two each of FLIP, FREEZE, +2, SHIELD and SWAP per energy, 6 PRISM wilds and 4 +4 wilds.
How a turn works
Anything goes: every card is legal on every card. Only a pending draw penalty limits what you can play.
Can't play? Draw one card and your turn passes.
Special rules at this table
- Stacking: answer a +2 with a +2 or a +4 with a +4 to pass the growing pile to the next player. The first player who can't stack draws it all.
- SHIELD cards stay in front of you and block the next draw attack aimed at you, however big it is.
- The Riot Meter charges with every card you play; combos charge it faster. At 100% hit RIOT BURST to shatter up to 2 number cards of the active energy at once.
How to win
Be the first to shed every card. Your score is 100 for the win plus the points left in your rivals' hands, a speed bonus for quick wins, 25 per Riot Burst, a combo bonus and 50 extra for winning without drawing a single card.
Tips for Anything Goes Duel
- Charge the meter with combos. Several plays in a row fill it faster; burst when it shatters your highest-point number cards.
- Play a SHIELD early when your hand is large — it waits in front of you and eats the next +4 or +10.
- This mode trains speed on your skill radar and pays ×1.2 XP.
Frequently asked questions
Is Anything Goes Duel free to play?
Yes. Anything Goes Duel and every other Prism Riot mode are free in your browser with no download, no sign-up and no account. Progress is saved in your browser.
Can I play Anything Goes Duel offline?
Yes. After your first visit Prism Riot works offline — add it to your home screen from the browser menu and it opens like an app.
How many players are in Anything Goes Duel?
2 players: you against 1 computer opponent at sharp difficulty. Each starts with 7 cards.
Can you stack draw cards?
Yes, +2 on +2 and +4 on +4. A +4 cannot be stacked on a +2 here (it can in Mayhem and the Merciless modes).
Can I challenge a friend on the same deal?
Yes. After a round, tap “Challenge a friend” — the link opens the exact same shuffle for them, with your score to beat.