Play Prism Battle — Free 4-Player Color Card Game Online
The classic 4-player riot. Free in your browser, no download.
About Prism Battle
Prism Battle: The classic 4-player riot. Battle tables are the heart of Prism Riot: you against computer rivals with the full 126-card Prism deck — numbers, actions and wilds.
The table
4 players: you and 3 computer rivals. 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
On your turn, play one card that matches the active energy (colour) or the symbol of the top card. Wild cards play on anything and you choose the next energy.
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 Prism Battle
- 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 tactics on your skill radar.
Rule guides for this mode
- Stacking rules: can you stack +2 and +4 cards?
- Wild card rules: PRISM, +4 and ending on a wild
- What happens when you can't play a card?
- How many cards are in the deck — and how many do you deal?
- Card games like UNO: 8 alternatives worth playing
- How to play a colour card game with a regular deck
- The best card games for 4 players
Frequently asked questions
Is Prism Battle free to play?
Yes. Prism Battle 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 Prism Battle 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 Prism Battle?
4 players: you against 3 computer opponents 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.
Is this mode in the Prism Riot app?
Yes. The iPhone and Android app has all 65 modes, including this one, and plays offline — free on Google Play and the App Store.