History TabletopGame / Uno

** Reverse: Changes the direction of play. In two-player, it acts as a Skip card.

** Wild Draw Four: Similar to a Wild except it can only be played if the player does not have any cards matching the color of the discard pile. If unchallenged, the next player draws four cards and loses their turn. If challenged, the player shows their cards to the accuser. A successful challenge causes the accused to draw four cards, otherwise an unsuccessful challenge leads to the accuser drawing ''six'' cards.

* LiteralWildCard: On the holder's turn, a wild card may be played on any card, whereafter the person who laid it chooses which color continues play. The draw four card is a more powerful wild as it also requires the next player to draw four cards and skip their turn, but may be played if they have no matching color or as a bluff - the next player may attempt to challenge said card.

* TotallyRadical: For the game's 50th anniversary, five new decks were released -- one for each decade the game's been around. The descriptions on the back of the box each read like a marketing executive is trying to come off as hip to the youth of that decade (for example, the 90s one references ''Series/BeverlyHills90210'' and tells the player to "get jiggy with it").

* LevelEditor: ''Get Wild for Uno'' and ''Uno Wild Jackpot'' have erasable blank cards for adding new rules. The Swap Hands Wild card for the former game provides a physical example (the symbol has a pencil-drawn look).

* ComebackMechanic: Color matching in ''Dos'' lets the player remove more cards from their hand. However, the increased number of cards in the center pile gives the next player more options to play their cards.

** Although both discard piles are present, players are limited to playing up to two cards and played discard plies are not replaced.
** Players can play one card on one or both discard piles matching either number, symbol, or color. The two distinctly played cards cannot occupy the same pile.

** If the player uses two Action Cards, then the cards are activated in the order it has been played.

** The Wild Play Two Card forces the next player to play two cards. If unable, then they'll draw two cards.

* BilingualBonus: Uno and Dos are Spanish for One and Two, respectively.

* DexterityGame: ''UNO Stacko'' Features a tower of blocks where you try to remove one and put it on top without making the whole tower fall over, but now the blocks have colours and numbers affecting which determine what blocks you'll be pulling out. There are also a few blocks with special effects on the game.

* DarkWorld: The main gimmick of ''Uno Flip'' (2019) is literally flipping between the Light Side and the Dark Side of the cards on your hand, the Discard Pile, and the Draw Pile as all of the cards are double-sided. The Dark Side has its own set of colors (pink, orange, teal and purple) and far meaner cards than the Light Side such as a Draw 5 card, Skip Everyone card (effectively an ExtraTurn), and a Wild Draw Color card (the target keeps drawing cards until the chosen color shows up).

** '''''UNO Express''''': Card deck reduced to 56 for faster gameplay. The Draw 2 and Wild Draw 4 cards are changed to a Draw 1 and Wild Draw 2. Everyone starts with five cards instead of seven.

** '''''UNO All Wild!''''': All number cards are replaced by Wild Cards and all Action Cards have wild properties. Since all cards can be played, the players have to use their Action Cards to skip their opponents, make them draw cards, or swap their deck.

* Wild Extra Cards[[note]]Introduced in the 2016 ''Get Wild for Uno'' version[[/note]] (40 Points)

** '''''UNO Nothin' But Paper''''': The original game gone green with everything made entirely with paper, soy-based ink and water-based glue. Features a jungle theme.

** '''''UNO Nothin' But Paper''''': The original game gone green with everything made entirely with paper, soy-based ink and water-based glue.

** '''''UNO Flip!''''' (2019): Double-sided cards. Features a light and dark side mechanic each with different and meaner Action Cards.

** '''''UNO Braille''''': Made with the National Federation of the Blind, all cards have braille labels. A played card must be announced by name, and any player can say "Card Check" to have every other player report the number of cards they have in their hand

* GivingSomeoneThePointerFinger: The Point Taken card in ''Uno Party'', represented by a pointing hand, has everyone point at one of their opponents. Players then draw cards depending on the number of fingers pointed at them.

* GivingSomeoneThePointerFinger: The Point Taken card in ''Uno Party'' has everyone point at one of their opponents. Players then draw cards depending on the number of fingers pointed at them.

* OnThree: The ''Uno Party'' game features a card type called "Point Taken", represented by a pointing hand. Whoever plays a Point Taken card counts out loud from three. Then, on one, each player points at another, and then draw cards for each person pointing at them.

* Wild Extra Cards [[note]]Introduced in the 2016 ''Get Wild for Uno'' version[[/note]] (40 Points)

** Wild Shuffle Hands [[note]]Replaces the above card in the ''Global Contest Winning Rule'' version[[/note]]: The player collects all cards held by every player (including their own), then shuffles and re-deals them clockwise around the table.

* '''''UNO'''''

** '''''Giant UNO''''': 7.4 x 10.1 inch cards.

After 47 years, a sequel by the name of ''Dos'' (marketed as ''DOS'') was announced on February 2018 and released on March 4, 2018 [[note]]Timed exclusive on Target; August 2018 for other stores[[/note]]. It features a different set of rules:

* '''''UNO Blitzo''''': 4-player ''TabletopGame/BopIt'' with Uno rules. Uses an electronic machine that everyone shares.

* '''''UNO Dominoes''''': Dominoes with Uno rules
* '''''UNO Rummy-Up''''': ''Rummikub'' with Uno rules

* '''''UNO Stacko''''': ''TabletopGame/{{Jenga}}'' using ''Uno'' rules
* '''''UNO Hearts''''': TabletopGame/{{Hearts}} with extra Action Cards
* '''''UNO Blitzo''''': Uses an electronic machine that everyone shares.

[[folder: Types of Cards]]

** '''''Global Contest Winning Rule''''': Alternative version of the above where the Wild Swap Hands card is replaced by a Wild Shuffle Hands card. The player who plays the Wild Shuffle Hands card collects all cards from their opponents' hands and redistributes one card at a time clockwise. The new card is based on an official new card rule contest won by Kagami Haruya.