What are the official UNO rules?

Play cards by matching color or number. Use wilds strategically. Say "UNO!" before your last card. First to 500 wins.

Can you stack +2 or +4 cards?

Not officially, but many house rules allow stacking. Make sure everyone agrees before the game starts.

What happens if you don’t say UNO?

If another player catches you before your next turn, you draw 2 cards.

Can you end the game on a Wild Draw 4?

Yes, as long as it’s a legal play. But if someone challenges and you're wrong, you draw 4 and the game continues.

What’s the difference between UNO and UNO Flip?

UNO Flip has a two-sided deck. Flip cards switch the game from normal to a dark mode with more punishing effects.

Is UNO No Mercy real?

It’s a custom fan variant and not official, but very popular online. Expect wild custom cards and brutal stacking.

UNO Rules → Fun Family Guide to Cards, Actions & House Variants

How to Play UNO

UNO is the ultimate family card game, known for fun, chaos, and the iconic moment of yelling “UNO!” at your friends.

Easy to learn, addictive to play, and full of variants, the official UNO rules are the foundation of both casual rounds and crazy house versions like UNO Flip or UNO No Mercy.

What’s in the Deck?

A standard UNO deck has 108 cards:

Number cards (0–9) in four colors (Red, Blue, Yellow, Green)
Action cards (per color): Skip, Reverse, Draw Two (+2)
Wild cards: Wild, Wild Draw Four (+4)

UNO Setup

Players: 2–10
Each player starts with 7 cards
The rest form the draw pile
Flip over one card to start the discard pile
The first player is the one to the left of the dealer

UNO Objective

Be the first player to get rid of all your cards.
Points are scored based on the cards left in opponents’ hands.

Turn Order & Gameplay

On your turn:

Play one card that matches the color, number, or symbol of the discard pile’s top card.
If you can’t play, draw one card:
- If it’s playable, you can play it immediately.
- If not, your turn ends.

Before playing your second-to-last card, you must say “UNO!”

Forget, and if someone catches you → draw 2 cards.

UNO Card Rules – What Each Card Does

Card Type	Description
Number cards (0–9)	Match by color or number
Skip	Next player loses their turn
Reverse	Reverses direction of play
Draw Two (+2)	Next player draws 2 cards + loses turn
Wild	Play on any card; choose the new color
Wild Draw Four (+4)	Same as Wild, but next player draws 4 cards + skips turn (special rule)

Wild Draw Four Rule

You may only play a +4 if you have no card matching the current color.
If challenged, show your hand:
- If bluffing → you draw 4 cards.
- If legal → challenger draws 6 cards.

Winning UNO

When a player plays their last card → they win the round.

Scoring:

Number cards → face value
Skip/Reverse/+2 → 20 points each
Wild/+4 → 50 points each

The game ends when:

A player reaches 500 points, or
You choose to play unlimited rounds.

Optional & House Rule Variants

Since UNO is such a big and popular game, naturally there are a few different rules depending on how you want the game to run.

UNO Stacking Rules (Unofficial)

+2 cards can be stacked.
Some groups stack +4 cards.
Stacking +2 on +4? Not official, but many groups allow it.

Reverse Skip

In 2-player games, Reverse acts as a Skip.

Force Play

Some groups require drawing players to play a playable card immediately.

UNO Variant Rules (Mini Versions)

UNO Flip → Double-sided deck with nastier “dark side” cards.
UNO No Mercy (unofficial) → Chaos rules like Draw 10, Swap Hands.
UNO All Wild → Every card is wild, with extra chaos actions.
UNO Extreme / UNO Attack → Features a card launcher for unpredictable draws.

Strategies & Tips

Hold wilds for late-game → they’re game changers.
Watch your opponents’ hand counts.
Use Reverse/Skip to block players close to winning.
Don’t forget to say UNO!

Quick UNO Rules Recap

Each player starts with 7 cards
Match by color, number, or symbol
No playable card? Draw 1
Say UNO when 1 card left
First to empty hand wins the round
Score opponents’ leftover cards
500 points = game win

UNO Rules