A unique deck of vibrant cards and symbols are used in the American card game Uno. Crazy Eights, another card game that is hugely popular in the US, is where the game's basic idea originated.

Merle Robbins created Uno in 1971 in Ohio, USA, and it soon gained popularity there. Uno is currently one of the most popular board games in the world.

Uno Online rules

The dealer hands 7 cards to each player, shuffles the remaining cards, and places them face down in the center. The first card is then drawn by the dealer, who then proceeds to play.

In accordance with the two rules of "same color or same number" and "special function card," the following person (clockwise) plays the subsequent card (the above 2 rules will be explained below). If not, another card must be drawn from the face-down pile.

The game proceeds in accordance with the aforementioned two rules, and players may use the Combo rule and the Double Hit rule while they are playing (more explained below).
The player must yell "Uno" before playing when they only have 2 cards left; otherwise, if they are caught playing without shouting and are dealt 2 more cards, they lose.
The game round concludes, and points are added to the player who ran out of cards first. This person is the winner of that round. Once a player earns 500 points and is declared the winner, play is continued.
The dealer will first give 7 cards to each player after an even round of shuffling; the remaining cards will be placed face down in the centre. The dealer then selects the first card from the deck face down to initiate play and decide who will go first (clockwise order of play). The following player will pick one of the cards he is holding to play in accordance with these guidelines:
The card that is played must have the same color or number as the card that was played before it. This is known as the "same color or same number" rule. Apply the "special function card" rule if the first card played is a function card.
The "special function card" rule is that special function cards (black) can be played at any moment without being constrained by the qualities of the previous card.
There are no cards that satisfy the first two criteria. One more card must be drawn from the center pile that is facing down. If the card drawn satisfies one of the two aforementioned requirements, you may play right away; otherwise, the turn will pass to the player after you.
The game will continue until one participant has just two cards left in their hand. At this moment, the yell "Uno" and immediate play of the card are required from that player. You will have to draw two extra cards if you neglect to chant and someone else finds out. The player can "risk" stealthily and wait for another turn to run out of cards and finish first if no one else does.
Whenever someone runs out of cards first, the game of Uno is over. Following that, the remaining players will be scored by accumulating points, and the round's winner will then be determined by adding the combined points of the losers.