is a digital adaptation of the classic shed-type card game. The game utilizes a specialized 108-card deck and supports multiplayer functionality. The primary objective for every participant is to clear all cards from their hand through tactical matching and sequencing.
The Composition of the Deck A standard game deck consists of 108 cards divided into four colors (Red, Yellow, Green, and Blue) along with uncolored special cards.
1. Number Cards (76 Total) Value Range: 0 through 9.
Distribution: Each color contains one '0' card and two copies of numbers '1' through '9'.
2. Action Cards (24 Total) There are three distinct action types, with two of each type present per color:
Draw Two (+2): Forces the subsequent player to add two cards to their hand from the draw pile and forfeit their turn.
Reverse: Reverses the rotation of play. If play is moving clockwise, it shifts to counter-clockwise, and vice versa.
Skip: Forces the immediate next player to bypass their turn.
3. Wild Cards (8 Total) These cards feature a black background containing all four colors and can be played regardless of the current top card:
Wild: Allows the active player to declare a new dominant color for the pile.
Wild Draw Four (+4): Allows the player to change the active color and forces the next player to draw four cards and miss their turn.
Step-by-Step Gameplay Mechanics The Setup The deck is shuffled automatically by the system.
Each player is dealt a starting hand of exactly 7 hidden cards.
The remaining cards form the Draw Pile, placed face-down.
The top card of the Draw Pile is flipped face-up to establish the Discard Pile.
Turn Turnaround and Matching Rules Play initiates with a designated player and proceeds in a clockwise direction by default. On your turn, you must perform one of two actions:
Play a Valid Card: To play a card, it must match the top card of the Discard Pile by Color, Number/Value, or Symbol (for Action cards). Wild cards are always valid.
Draw a Card: If you cannot make a valid match, or choose not to play a card from your hand, you must interact with the Draw Pile to pull one card. If this new card is playable, you may drop it immediately. If it is not, the turn passes to the next player.
Round Completion and Winning The round continues until a player successfully discards the final card from their hand. In physical versions, players must declare "Uno" when down to one card; in this digital edition, the interface automates or tracks the progression toward a zero-card hand. The first player to have zero cards wins the match.
