Prism Riot

Card game rules guides

The rules people argue about, settled — with a free table to try each one.

Colour-matching shedding games all share a core — match the colour or the symbol, empty your hand first — but every family plays them a little differently. Can you stack a +4 on a +2? What happens on a 7? Do you have to announce your last card? These guides explain the classic answer, the popular house rules and exactly how Prism Riot plays each rule, so you can settle the argument and then try the rule for yourself in a free game.

Each guide ends with the Prism Riot modes where that rule is switched on. Everything runs in your browser — no download, no account.

Crazy Eights rules: the complete guideCrazy Eights rules explained: the deal, matching, why 8s are wild, draw-two 2s, scoring, 2-player rules and winning strategy — then play free online.Stacking rules: can you stack +2 and +4 cards?Can you stack a draw 2 on a draw 2, or a draw 4 on a draw 2? Official vs house stacking rules, cross-stacking, how the pile passes and how to defend.No Mercy rules explained: +6, +10, the mercy rule and moreNo Mercy card game rules in plain English: +6 and +10 cards, stacking, discard-all, skip-everyone, roulette and the 25-card mercy rule. Play Merciless free online.The 7-0 rule: swap on 7, rotate on 0The 7-0 rule explained: playing a 7 swaps hands with any player, a 0 rotates every hand. Examples, strategy and where to play it free online.The Jump-In rule: playing out of turnThe jump-in rule explained: if you hold the exact same card as the top card you can play it out of turn. How it works, examples and strategy — play it free.Calling your last card: the rule and the penaltyWhen do you have to call your last card, what's the penalty if you forget, and can you call before playing? The calling rule explained, with a free online mode.Flip card game rules: light side and dark sideHow double-sided flip card games work — and Prism Riot's Eclipse pack: one card flips the table, actions turn harsher on the dark side. Rules, tips and free play.Attack-style rules: the random card launcherHow 'attack' card games with a random card launcher work, and Prism Riot's Eruption pack: the draw pile erupts 0–4 cards, BLAST and ALL BLAST. Rules and strategy.How scoring works in colour-matching card gamesHow points work in shedding card games: number cards face value, actions 20, wilds 50 — first to 500. Worked examples and a free score calculator.Two-player rules for colour card gamesPlaying a colour-matching card game with two players? How reverse acts as a skip, how draw cards work, and the best 2-player strategy — play free against the computer.Fun house rules for colour-matching card gamesThe best house rules for shedding card games — stacking, 7-0, jump-in, doubles, draw until you play, no mercy and more — and a free online table that plays them.Wild card rules: PRISM, +4 and ending on a wildWild card rules explained: when you can play a wild, choosing the colour, the +4, stacking wilds and whether you can go out on a wild card.What happens when you can't play a card?Can't play a card in a colour-matching game? The draw-one rule, draw-until-you-can-play, whether you can play the drawn card, and eruptions — all explained.How to win more: 30 strategy tipsStrategy for UNO-style colour card games: opening turns, 2-player vs 4-player tactics, the endgame, card counting, when to hold wilds and stacking defence.Pyramid card puzzles: how to solve themHow Prism Riot's Pyramid Chains puzzles work — uncover cards, match energy or symbol, clear the pyramid — with solving techniques for 60 free levels and a daily puzzle.How many cards are in the deck — and how many do you deal?How many cards are in a colour card game deck? 108 in the classic box. Every card listed, how many to deal (7) and how Prism Riot's 126-card deck compares.Card games like UNO: 8 alternatives worth playingCard games like UNO: Crazy Eights, Mau-Mau, Switch, Taki, Phase 10, Skip-Bo, Speed and more. How each plays, what you need, and which play free online.The best card games for 2 players12 great card games for 2 players: Crazy Eights, Gin Rummy, Cribbage, Speed, Spit, Casino, War and more — how each plays, how long it takes, and which to play free online.The best card games for adults14 card games for adults, from Hearts, Spades and Euchre to Cribbage, Canasta and President: player counts, how each plays, and which to play free online.Family card games everyone can play12 easy family card games for all ages: Go Fish, Old Maid, Crazy Eights, Slapjack, Spoons and more, how to play each, youngest age, and free online play.The best card games for 3 players10 card games for 3 players: three-handed Hearts, Cribbage, Rummy, Skat, Oh Hell and more, the setup tweak for each, plus free 3-player tables online.How to play a colour card game with a regular deckPlay with a standard 52-card deck: suits are colours, 2s draw two, jacks skip, queens reverse, 8s are wild, jokers draw four. Full mapping, deal and rules.Boss Rush guide: how to beat all ten bossesAll 10 Prism Riot bosses and their twists, from Ember to Apex Prism, with a plan to beat each one in Boss Rush.Endless Gauntlet and Prism Cup: tips to go furtherHow Prism Riot's Endless Gauntlet ramps up (tougher rivals, twists, smaller hands, 8-second turns) and how to climb all six Prism Cup tiers.The best card games for 4 players12 card games for 4 players: Spades, Euchre, Hearts, Bridge, Canasta, Rummy and more, with the deal for each, plus free 4-player tables online.Mau Mau rules: how to playMau Mau rules: the deal, jacks wild, 7s draw two, 8s skip, calling 'Mau' — plus how Mau Mau differs from Crazy Eights, Switch and Last Card.

Where to start

Settling a rules argument? Start with stacking +2 and +4, the 7-0 rule and calling your last card: they are the rules most tables play differently. House rules collects the popular variations in one place, and what happens when you can't play covers the draw rule that decides how long a game lasts.

Choosing a game for tonight? The guides to card games for two players, three players, families and adults suggest games by group size and mood. No colour deck to hand? See how to play with regular cards or start with Crazy Eights, the classic it grew from.

Want to win more? Read the strategy guide and scoring, then take them into Prism Riot's own challenges with the Boss Rush guide and the Endless Gauntlet and Prism Cup tips.

Shopping for someone? See our card game and game night gift ideas.