Uno (card game)
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|Skills required||Hand management|
|Playing time||10 minutes|
Uno (//; from Italian and Spanish for 'one'; stylized as UNO) is an American shedding-type card game that is played with a specially printed deck. The game's general principles put it into the Crazy Eights family of card games. The game was originally developed in 1971 by Merle Robbins in Reading, Ohio, a suburb of Cincinnati. It has been a Mattel brand since 1992. When his family and friends began to play more and more, he spent $8,000 to have 5,000 copies of the game made. He sold it from his barbershop at first, and local businesses began to sell it as well. Robins later sold the rights to UNO to a group of friends headed by Robert Tezak, a funeral parlor owner in Joliet, Illinois, for $50,000 plus royalties of 10 cents per game. Tezak formed International Games, Inc., to market UNO, with offices behind his funeral parlor. The games were produced by Lewis Saltzman of Saltzman Printers in Maywood, Illinois. In 1992, International Games became part of the Mattel family of companies. There can be 2-10 players.
- 1 Official rules
- 2 Strategies
- 3 Card and deck styles
- 4 Theme packs
- 5 Special Uno games
- 6 Video games
- 7 Variations
- 8 UNO: Slots
- 9 UNO: The Game Show
- 10 Similar games
- 11 Notes
- 12 References
- 13 Bibliography
The aim of the game is to be the first player to score 500 points, achieved (usually over several rounds of play) by being the first to play all of one's own cards and scoring points for the cards still held by the other players.
The deck consists of 108 cards: four each of "Wild" and "Wild Draw Four," and 25 each of four different colors (red, yellow, green, blue). Each color consists of one zero, two each of 1 through 9, and two each of "Skip," "Draw Two," and "Reverse." These last three types are known as "action cards."
To start a hand, seven cards are dealt to each player, and the top card of the remaining deck is flipped over and set aside to begin the discard pile. The player to the dealer's left plays first unless the first card on the discard pile is an action or Wild card (see below). On a player's turn, they must do one of the following:
- play one card matching the discard in color, number, or symbol
- play a Wild card, or a playable Wild Draw Four card (see restriction below)
- draw the top card from the deck, then play it if possible
Cards are played by laying them face-up on top of the discard pile. Play proceeds clockwise around the table.
Action or Wild cards have the following effects:
|Card||Effect when played from hand||Effect as first discard|
|Skip||Next player in sequence misses a turn||Player to dealer's left misses a turn|
|Reverse||Order of play switches directions (clockwise to counterclockwise, or vice versa)||Dealer plays first; play proceeds counterclockwise|
|Draw Two (+2)||Next player in sequence draws two cards and misses a turn||Player to dealer's left draws two cards and misses a turn|
|Wild||Player declares the next color to be matched (may be used on any turn even if the player has matching color)||Player to dealer's left declares the first color to be matched and plays a card in it|
|Wild Draw Four/Draw Four Wild (+4 and wild)||Player declares the next color to be matched; next player in sequence draws four cards and misses a turn. May be legally played only if the player has no cards of the current color (see Penalties).||Return card to the deck, shuffle, flip top card to start discard pile|
- A player who draws from the deck must either play or keep that card and may play no other card from their hand on that turn.
- A player may play a Wild card at any time, even if that player has other playable cards.
- A player may play a Wild Draw Four card only if that player has no cards matching the current color. The player may have cards of a different color matching the current number or symbol or a Wild card and still play the Wild Draw Four card. A player who plays a Wild Draw Four may be challenged by the next player in sequence (see Penalties) to prove that their hand meets this condition.
- If the entire deck is used during play, the top discard is set aside and the rest of the pile is shuffled to create a new deck. Play then proceeds normally.
- It is illegal to trade cards of any sort with another player.
A player who plays their next-to-last-card must call "Uno" as a warning to the other players.
The first player to get rid of their last card ("going out") wins the hand and scores points for the cards held by the other players. Number cards count their face value, all action cards count 20, and Wild and Wild Draw Four cards count 50. If a Draw Two or Wild Draw Four card is played to go out, the next player in the sequence must draw the appropriate number of cards before the score is tallied.
The first player to score 500 points wins the game.
- If a player does not call "Uno" after laying down their next-to-last card and is caught before the next player in sequence takes a turn (i.e., plays a card from their hand, draws from the deck, or touches the discard pile), they must draw two cards as a penalty. If the player is not caught in time (subject to interpretation) or remembers to call "Uno" before being caught, they suffer no penalty. If a player falsely calls "Uno" while having multiple cards in their hand, they must draw two cards.
- If a player plays a Wild Draw Four card, the following player can challenge its use. The player who used the Wild Draw Four must privately show their hand to the challenging player, in order to demonstrate that they had no matching colored cards. If the challenge is correct, then the challenged player draws four cards instead. If the challenge is wrong, then the challenger must draw six cards; the four cards they were already required to draw plus two more cards.
In a two-player game, the Reverse card acts like a Skip card; when played, the other player misses a turn.
The following house rules are suggested in the Uno rulebook, to alter the game:
- Progressive Uno: If a draw card is played, and the following player has the same card, they can play that card and "stack" the penalty, which adds to the current penalty and passes it to the following player.
- Seven-O: When a certain card is played, the player is able to trade hands with another player or with all players. For example, the person who played the 7 card is able to switch all of their cards with another player; the player who played the 0 card is able to make every player exchange all their cards to the next player.
- Jump-In: If a player has exactly the same card (both number and color) as the top card of the discard pile, they may play it immediately, even if it is not their turn. The game then continues as if that player had just taken their turn.
A strategy at Uno may be offensive (aiming to go out), or defensive (aiming to minimize the value of one's hand, in the event that another player goes out, thus getting those points). Part of the skill of playing Uno is knowing when to adopt an offensive or defensive strategy.
An offensive strategy would be holding on to Wild and Wild Draw Four cards because they can be played near the end of the hand in order to go out (when it's harder to play a matching card). However, a defensive strategy would advise getting rid of such cards early, because they have a high point value.
A defensive strategy would advise playing a high card in order to reduce the point value of the hand. However, an offensive strategy would suggest playing a 0 when the player wants to continue on the current color, because it is less likely to be matched by another 0 of a different color (there is only one 0 of each color, but two of each 1–9).
A player holding only one card is required to call out "Uno" or risk being penalized if caught. A player who calls "Uno" risks being the target of concerted action by the other players, who may be able to use action cards to prevent that player from going out. Depending on the level and seriousness of play, some players may deliberately avoid saying "Uno", in the hope of avoiding detection and then going out on the next turn. For this reason, it is useful to conceal how many cards are in your hand and to keep track of how many cards every other player holds.
Little has been published on the optimal strategy for the game of Uno. Simulations of games may shed some light on the matter. Attempts to reduce point count in a player's hands can be "read" by other players if too transparent. This information can be exploited by other players, and it follows that a mixed strategy may be more appropriate.
Some work has been done into the psychology of Uno as it relates to individual and group behavior. Players may exhibit physical tells, in which a subtle, often repeated, cue inadvertently reveals their state of mind during a game. Alternatively, they may change their playing style, switching from an aggressive card-shedding strategy to a more subdued one, or vice versa.
Card and deck styles
The new Uno action cards bear symbols which denote their action, except for the Wild cards which still bear the word "Wild." Before the design change, such cards in English versions of the game had letters only. Especially old English versions can be denoted by the absence of the white rim that surrounds the edge of most Uno cards. Other versions use symbols and images in both old and new designs, especially ones with Wild cards that do not bear the word "Wild". The Xbox 360 version of the game uses the new English style of the cards. There are also language-free versions of the newer styles that do not bear the word "Wild" but have the same styling. There is a new version called "Uno Mod" where the cards have symbols instead of letters or numbers. This version also comes in a red and white case. It is one of several "Mod" games by Mattel, the others being Othello (game) Mod, Apples to Apples Mod, Phase 10 Mod, and Skip-Bo Mod.
There are many different themes and versions of Uno. These theme games may come with slightly different directions and special cards.
- American Kennel Club (Herding Breeds) Uno
- American Kennel Club (Non-Sporting Group) Uno (2006)
- American Kennel Club (Sporting Group) Uno
- American Kennel Club (Terrier Breeds) Uno
- Angry Birds Uno (2012)
- Arsenal Highbury Legends Uno (2007)
- Avengers Uno (2015)
- Avengers Assemble Uno (2013)
- Bandai Uno[a]
- Barbie Uno[b]
- Barbie Cali Girl Edition Uno (2004)
- Barbie - Life in the Dream House Uno (2014)
- Batman Uno (2005)
- Batman Begins Uno (2005)
- Batman: The Dark Knight Uno (2008)
- Batman v Superman: Dawn of Justice Uno (2015)
- Beach Uno (2011)
- Betty Boop Uno (2005)
- The Big Bang Theory Uno (2012)
- Braille Uno (2012)
- Care Bears Uno (2003)
- Car-Go Uno (2004)
- Cars Uno (2006)
- Cars 2 Uno (2011)
- Cars 3 Uno (2017)
- Cinderella Uno (2012)
- Coca-Cola Uno (1998, 2004)
- Coco (2018)
- Dare (2014)
- DC Super Heroes Uno
- Diary of a Wimpy Kid Uno (2012)
- Disney Uno (2002)
- Disney Electronic Uno (Classic) (2003)
- Disney Electronic Uno (Modern)
- Disney Fairies Uno (2009)
- Disney Pixar Uno (2012)
- Disney Princess Uno[c]
- Disney Channel / Disney Shows Uno[d]
- Disney Sofia The First Uno[e]
- Disney Theme Park Uno[f]
- Doc McStuffins Uno (2013)
- Dog Uno (2003)
- Doraemon Uno[g]
- Doctor Who Uno (2007)
- Elvis Uno (2000)
- Emoji Uno
- Eragon Uno (2006)
- Family Guy Uno (2004)
- Fantastic Four Uno (2005)
- Fat Albert Uno (2005)
- Ferrari Uno (2000)
- Finding Dory Uno (2016)
- Fishing Uno (2012)
- Florida State University Uno (2011)
- Fraggle Rock Uno[h]
- Frozen Uno (2014)
- Glee Uno (2011)
- Ghostbusters Uno (2016)
- Golden Compass Uno (2007)
- Green Lantern Uno (2011)
- Hairspray Uno (2007)
- Hanna-Barbera Uno (2004)
- Hannah Montana Backstage Pass Uno
- Hannah Montana Best of Both Worlds Uno (2007)
- Happy Feet Uno (2006)
- Harry Potter Uno[i]
- Hello Kitty Bow Uno (2012)
- Hello Kitty Friendship Uno (2003)
- Hi Hi Puffy Amiyumi Uno (2006)
- High School Musical Uno (2006)
- High School Musical 2 Uno (2007)
- High School Musical 3 Uno (2008)
- Holiday Uno (2009)
- Hoops and Yoyo Uno
- Horses Uno (2011)
- Hot Death Uno (2001)
- Hot Wheels Uno (2012)
- House Rules Uno (1998)
- Hulk Uno (2003)
- H2O To Go
- H2O Splash (2005)
- Iron Man 2 Uno (2010)
- Jelly Belly Uno (2012)
- John Deere Uno(2010)[k]
- Jurassic World Uno (2018)
- Justice League Uno (2017)[l]
- Kittens Uno
- Kung Fu Panda Uno (2008)
- Limited Too It's A Girl's World Uno (2008)
- Macy's Parade Uno
- Magic Tree House Uno (2007)
- Marvel Heroes Uno (2010)
- Mario Bros. Uno (2012)
- Mini Party Favors Uno
- Muppet Show Uno[m]
- My Scene Uno (2005)
- MyUno Uno (2005)
- National Parks Uno (2002, 2009)
- New York City Uno (2001)
- NHL Uno
- Nightmare Before Christmas Uno (2007)
- Nintendo Uno (2004)
- North American Wildlife Uno
- Notre Dame Uno (2005)
- NSYNC Uno(2000)
- One Piece Uno (2003, 2011)
- One Piece: The New World Uno (Japan-2012)
- Over the Hedge Uno (2006)
- Paw Patrol Uno (2015)
- Peanuts Uno (2002)[n]
- Peanuts – A Charlie Brown Christmas Uno[o]
- Peanuts – It's the Great Pumpkin Uno (2006)
- Peanuts - Be My Valentine Uno (2006)
- Peanuts Movie Uno (2015)
- Peanuts – Vintage Peanuts Uno (2005)
- The Penguins of Madagascar Uno (2012)
- Penn State University Uno
- Phineas and Ferb Uno (2012)
- Pinkalicious Uno (2010)
- Pirates of the Caribbean Uno (2007)
- Planes Uno (2013)
- Planes - Fire and Rescue! Uno (2014)
- Pokémon Uno (2006)
- Pokémon: Best Wishes (Japan)
- Pokémon: XY (Japan)
- Polly Pocket Uno (2006)
- Power Rangers Super Samurai Uno
- Puppies Uno
- Ratatouille Uno (2007)
- Ren and Stimpy Uno (2004)
- Retro Uno (2014)
- Scooby-Doo Uno
- Sesame Street Uno (2004)
- Shopkins Uno (2015)
- Shrek Uno
- Shrek 2 Uno (2004)
- Shrek the Third Uno[p]
- The Simpsons Uno (2003)
- The Simpsons (D'oh) Uno (2009)
- The Simpsons: Springfield / Great Scot Uno (2006)
- The Simpsons: Treehouse of Horror Uno (2005)
- Sock Monkey Uno
- South Park Uno (2004)
- Speed Racer[q]
- Spider-Man Uno (2002)
- Spider-Man 2 Uno (2004)
- Spider-Man Spider Sense Uno*
- Marvel Ultimate Spider-Man Web-Warriors Uno (2014)
- Splash Uno[r]*
- Splash: Finding Dory Uno[s]
- SpongeBob SquarePants #1[t]
- SpongeBob SquarePants #2[u]
- SpongeBob SquarePants #3[v]
- SpongeBob SquarePants - Eye Eye SpongeBob! (2008)
- SpongeBob SquarePants - Jellyfishing (2008)
- SpongeBob SquarePants - Lost in Time (2006)
- St. Louis Uno (2005)
- Star Trek Uno[w]
- Star Wars: The Clone Wars Uno
- Super Mario (2016)
- Superman Uno (2005)
- Superman Returns Uno (2005)
- Sydney 2000 Uno (1999)
- Teen Titans Uno (2006)
- Teenage Mutant Ninja Turtles Uno (2014)
- Texas Uno (2006)
- Toy Story Uno (2010)
- University of Alabama Uno
- University of Florida Uno
- University of Georgia Uno
- University of Kentucky Uno
- University of Michigan Uno
- University of North Carolina Uno
- University of Texas Uno
- Uno (1971)
- Uno 25th Anniversary (1996)
- Uno 30th Anniversary (2001)
- Uno 35th Anniversary (2011)
- UNO in FitSand Travel Zipper Carry EVA Hard Case (2016)
- Uno Deluxe in box[z]
- Uno Deluxe in Wood Box
- UNO With Customizable Wild Cards (2015)
- Uno Mod (2010)
- USA Uno
- Vacation Uno[aa]
- Wilderness Uno (2016)
- Wildlife Uno (2012)
- Wizard of Oz Uno(2007) [ab]
- WWE Legends Uno (2005)
- X-Games (1999, 2007)
- X-Men Uno (2003)
Note: * indicates HIT Entertainment character, by which Mattel acquired HIT in 2012.
Themed My First Uno games
Card sets only have 36 cards designed for children at least 3 years of age. These sets come in several variants, based on titles for children. My First Uno versions:
- Angelina Ballerina Uno (2005)
- Animals Uno
- Bob The Builder Uno (2007)
- Clifford the Big Red Dog
- Curious George Uno (2005)
- Dora the Explorer Uno (2003, 2010)
- Elmo Uno
- Handy Manny Uno (2009)
- Disney's Jake and the Neverland Pirates Uno (2011)
- Koala Brothers Uno (2005)
- Little People Uno (2006)
- Mickey Mouse Club Uno (2008)
- Miss Spider's Sunny Patch Friends Uno (2006)
- Rugrats Uno (1991)
- Sesame Street Uno (2004)
- SpongeBob SquarePants and Friends Uno (2012)
- Thomas & Friends Uno (2010)
- Where the Wild Things Are Uno (2007)
- Winnie the Pooh and Friends Uno (2002, 2011, 2012)
- Yo Gabba Gabba! Uno
Themed video games
Uno versions available on the Xbox 360:
Themed sports teams
Several sports teams each have 112-card sets, featuring players from those teams. The special cards in each deck vary depending on the card set itself. The following teams have confirmed Uno sets.
- Minnesota Patriots
- Auburn Tigers (NCAA)
- England FA (2010)
- England Rugby (2010)
- Manchester United
Calgary Flames (2010)
NHL Stars of Finland
- MLB All-Stars
American League (2005)
American League - Stars of the American League (2006)[af]
American League - Baltimore Orioles Miguel Tejada
American League - Boston Red Sox (Regular (2004) and World Series editions (2007))
American League - Boston Red Sox David Ortiz Limited (2007)
American League - Chicago White Sox (2007)
American League - Chicago White Sox World Series Championship
American League - Los Angeles Angels of Anaheim (2005)
American League - New York Yankees (2006)
American League - New York Yankees Derek Jeter Limited (2007)
American League - Seattle Mariners (2003)
American League - Texas Rangers (2006)
National League - MLB All Stars National League
National League - Chicago Cubs[ag]
National League - Chicago Cubs: Derek Lee (2006)
National League - Houston Astros (2005)
National League - New York Mets (2005)
National League - New Your Mets: David Wright Special (2007)
National League - Philadelphia Phillies (2005)
National League - St. Louis Cardinals (2006)
- NBA All-Stars
(East and West)
Eastern Conference - NBA All Stars Eastern Conference (2006)
Eastern Conference - Boston Celtics Legends (2005)
Eastern Conference - Cleveland Cavaliers: LeBron James Special Edition (2007)
Eastern Conference - New York Knicks (2006)
Western Conference - NBA All Stars Western Conference (2006)
Western Conference - Los Angeles Lakers Legends Edition (2006)
Western Conference - Los Angeles Lakers Kobe Bryant Special Edition (2007)
Western Conference - San Antonio Spurs (2006)
- American Football
Chicago Bears (2006)
Dallas Cowboys (2006)
Green Bay Packers (2007)
National Football League NFC Edition (2006)
New England Patriots (2007)
New York Giants (2006)
New York Jets (2009)
NFL American League (2006)
NFL National League (2006)
Phil. Eagles (2006)
Pittsburgh Steelers (2006)
Super Bowl XL Steelers Special Edition (2006)
- NFL Greatest Players Editions
Tom Brady (2007)
Brett Favre (2007)
LaDanian Tomlinson (2007)
Brian Urlacher (2007)
Special Uno games
- Uno Attack (Uno Extreme in the UK and Canada) (1999)
- Uno Attack Jurassic World (2018)
- Uno Attack Refill Deck
- Uno Bingo (1997)
- Uno Blast (2012)
- Uno Blitzo (2000)
- Uno Choo-Choo (2011)
- Uno Color Screen
- Uno Deluxe
- Uno Dare (2014)
- Uno Dice (1987, 1996, 2011)
- Uno Dominoes (1986)
- Electronic Uno
- Uno Flash (2007)
- Uno Flip (2009)
- Giant Uno (2016)
- Uno H2O (2004)
- Uno H2O To Go
- Uno Hearts (1994)
- Uno Junior (1992)
- King Size Uno The oversized cards have animal illustrations in addition to numbers (1-6) and colors to help children make matches. The deck also contains 4 wild cards, a Draw 2 card for each suit, and a Free Turn card for each suit. (1994)
- Killer Uno (1995)
- Uno Madness (1995)
- Uno Moo (2008, 2014)
- Uno Power Grab
- Uno Reflex
- Uno Roboto
- Uno Royal Revenge Whoever wears the crown makes the rules! (2014)
- Uno Rummy Up (1993)
- Uno Spin (2005)
- Uno Spin Hannah Montana (2005)
- Uno Spin One Piece (Japan)
- Uno Spin To Go (2010)
- Uno Stacko (1994)
- Travel Uno Stacko
- Uno Tippo (2009)
- Uno Slam
- Uno Tiki Twist (2014)
- Uno Wild Jackpot (2016)
- Uno Wild Tiles (1982)
- Get Wild for Uno (2016)
- Uno MineCraft (201x)
- Hot Death UNO (IBM - 1993)
- Uno (handheld video game - 2000)
- Uno (handheld video game for the Game Boy Color of the classic Uno board game)
- UNO DX (Japanese exclusive Sega Saturn game by Mitsui & Co. - 1998)
- Uno (PlayStation Network)
- Uno (Xbox Live Arcade)
- Uno Rush (Xbox Live Arcade)
- Uno Challenge (mobile version of the classic Uno board game)
- Uno Free Fall (puzzle game for mobile phones)
- Uno 52 (Nintendo Game Boy Advance)
- Super Uno (Super Famicom)
- Uno (Facebook) (Adobe Flash–based version of the classic Uno card game produced by GameHouse Studios)
- Uno (iPhone) Features online and local play. Produced by Gameloft
- Uno (iPad) The same as on the iPhone, but with enhanced graphics. Produced by Gameloft
- Uno (Android) Released as three versions: SD, HD and Free with adverts. Produced by Gameloft
- Uno (DSi)
- Uno (WiiWare) Produced by Gameloft
- Uno & Friends (various platforms)
- Pocket Uno
- Uno and UNO & Friends for Windows Phone
- Uno Undercover (Windows)
- Uno (2016 video game for PC, PlayStation 4, and Xbox One by Ubisoft)
- Uno (2017 video game for Nintendo Switch, produced by Ubisoft)
Many variations from standard gameplay exist, such as Elimination Uno, Speed Uno, French Uno, Pirate Uno, and Pakistani Uno.
In 2018, Mattel released a spin-off of Uno entitled Dos; the game is differentiated primarily by having a "center row" of discard piles. where pairs of cards that add up to the sum of a card on the top of one of the piles may be discarded.
In 2002, International Gaming Technology (IGT) released a video slot machine based on UNO.
UNO: The Game Show
In March 2013, it was announced that Mattel and The Gurin Company are teaming up to create a game show based on UNO where contestants will match colors, numbers and wits for a shot at a big cash prize. The show would be produced as a half-hour daily strip with a $100,000 cash jackpot along with a primetime version in which contestants competed for 1 million dollars. However, the idea was scrapped later on.
Uno is a member of the shedding family of card games. The shedding family of card games consists of games where the objective is to get rid of all your cards while preventing the other players from getting rid of their cards.
- A version released in Japan.
- Features the "friendship" card, where the player can swap his/her hand with another player. (2002, 2010)
- Features the Dragon Card, when played, all players must discard a prince card (regardless of color or number) to kill the dragon before continuing play. If a player does not have a prince card in their hand, they must pick up cards until they find a prince card. (2004) (2013)
- Deck features many of the characters on the Disney Channel.
- Card game in Foil Bag.
- Evil card: the player holding this card can steal the top card from the DISCARD pile at any point in the game, even if it's not his or her turn. (2005, 2012)
- Released in Japan
- Includes the Travel card (featuring Traveling Matt), which allows the player to "travel" to another player's spot and view his or her entire hand. (2006)
- which features a Draw Three (instead of Draw Two) card; also features a "howler" wild card where, if played, the player who uses the card may select another player to say all of their cards aloud; also features an "invisibility" wild card where, if played, the player can block any card placed down (such as, a card that forces them to draw cards). (2000, 2003, 2005, 2010)
- A deck with transparent waterproof cards. It includes 4 (2 of which are +1 2 of which are +2 downpour cards) black action cards called "wild DownPour" cards; when played, all the other players must pick up the number specified on the card and may choose the next color of play these cards replace two of the wild cards and two of the wild draw four cards out of the original deck, and also double as wild cards. (2004)
- Features farm equipment graphics and a "Harvest" card-The player who plays the harvest card selects another player to draw from the DRAW pile until he/she draws a green card, which will allow them to complete the harvest (or, until they draw 5 cards, whichever comes first).
- Features X-Ray card that lets a player see another's hand and strategically exchange a card.
- Mayhem card: the player who plays it causes everyone to swap hands. The direction of the swap is determined by the player playing the card. (2003)
- Wei, R. H. "Gamebits: Peanuts at Play". Games. Issue 196 (Vol. 27, No. 10). Pg.4. December 2003.
- Happy Holidays Card (2007, 2008, 2010)
- In a Shrek-faced package. 'Merlin Card' When you play this card you call out a color of your choice. All other players draw cards from the DRAW pile until each draws a card of that color. All of the cards that they draw are added to the cards in their hands. (2007)
- This set has a special Racer X card. The player who uses this card draws a card from the draw pile onto the discard pile and the depending on the number, the next player must place a card that follows the number drawn before. For example, player A draws the racer X card and draws a card with the number 3. The next player must place a card with the number 4 (regardless of colour) and the next player must place a card with the number 5 and so on. If they reach 9, they must start over with 0 until a player is unable to place a card and he/she must draw three cards. (2007)
- Comes with a handy clip that keeps all the cards together and attaches to a beach bag, backpack or camping gear. Seems to be about the same as H20 To Go.
- Comes with a handy clip that keeps all the cards together and attaches to a beach bag, backpack or camping gear.
- Super Absorbency (#1) Uno – which features the Super Absorbency card, a wild card which requires the next player to draw one card from all other players' hands at random. There is controversy as to what happens when the Super Absorbency card is played as the player's penultimate card. Some contend that the person playing the card would win as the next player would be required to take that card from him/her. However, some say that there is an exception whereas the Super Absorbency requires a card to be drawn from all players' hands except those who are in the uno stage. Clarification can be found on the back of the SpongeBob metallic tin. (2002)
- Secret Recipe (#2) Uno – Secret Recipe – Allows the player to look at another player's hand. The player can also select a new color just like a wild card.
- Lost in Time (#3 Uno) – Daredevil – Can be played to counter a Draw 2 or Draw 4 card. Can also be used as a wild card.
- Two Editions, both based on Star Trek: The Original Series
- With special cards, each of which appears once per pack: Double Tribble card – The player who plays this card chooses the color of play, then next player doubles the number of cards in their hand and forfeits their turn; Beam Me Up, Scotty card – This can played to stop any command card (a "Draw 2" card, for example) and allows for the color of play to be chosen; Mind Meld card – This commands the next player to show the person who played this card their hand; Live Long & Prosper card – This can be played at any time to discard the players hand and pick up an entirely new one, then allows him/her to choose color of play. (1999)
- Simplifies the special WILDs to one kind: 4 "Beam Up WILD" cards that can negate the effects of any DRAW 2 or DRAW 4 WILD cards played against a player. That player can then call a new color, and play resumes as if they had played a regular WILD. (It can also be used as a regular WILD if desired.) (2008)
- Some versions with erasable score pad. (1978, 1979, 1983, 1986, 1987, 1991, 1993, 2001, 2000, 2004, 2008)
- When this Check Two Card played by a player, he/she can:
- immediately play another card of the same suit color, OR
- play either Wild or Wild Draw 4 Card, the wild color called must match the color of the Check Two Card played.
- on its own (without a card of the same suit color), OR
- as the last card in your hand.
- Includes a special "Over The Rainbow" card where the person playing this card chooses someone hand to look at, also acts as a wild which then the person chooses the color of play.
- In this game, the cards show different characters from the Street Fighter II video game. This deck contains a special Hadouken card, which allows the user to choose 1 player to draw cards until they have drawn a Skip or a Reverse card. Play then continues on as normal.
- In this game, the cards are drawn like cars seen in the Project Gotham Racing series of video games. In this game, the rules include a card called the "Gotham Live" card, which is the same name used as the replay feature in Project Gotham Racing 3. This card allows a player to look at the hand of any of the other players.
- This pack was released on 1 November 2006. This is a custom deck with artwork from the Kameo game. In addition, a special play card allows you to swap your hand with the hand of another player in the game.
- This may be the same as the "American League" deck
- Different sources list 2005, 2006, & 2007
- UNO instruction sheet, 1983, International Games Ltd.
- "Mattel to buy International Games". UPI. Retrieved 2018-11-29.
- "30 Anniversary rule Book" (PDF). Mattel. 2001. Retrieved 2013-02-09.
- "UNO Basic Instructions" (PDF). Mattel. 2008.
- Exact wording of the official rules: 'When you play your next-to-last card, you must yell "UNO" (meaning "one") to indicate that you have only one card left'.
- "How to Play UNO in Large Groups". UNOtips.org. Retrieved 2012-08-08.
- "Tells". Unotips.org. Retrieved 2012-08-08.
- Nintendo Life - Uno WiiWare review. November 2009 http://www.nintendolife.com/reviews/2009/11/uno. Retrieved 5 March 2019. Missing or empty
- "Uno Variations".
- Friedman, Megan (February 13, 2018). "The Makers of UNO Are Releasing a Spinoff Game Called DOS". Good Housekeeping. Retrieved March 28, 2018.
- Beck, Kellen. "'DOS,' the sequel to 'UNO,' is a new take on an old favorite". Mashable. Retrieved 2018-12-04.
- "UNO Slots" (PDF).
- "'UNO: The Game Show' In The Cards From Mattel And Gurin Co". Deadline. March 25, 2013. Retrieved March 25, 2013.
- Lyons, Margaret (March 26, 2013). "Who Doesn't Want an UNO TV Show?". Vulture. Retrieved March 26, 2013.