🃏 一張牌 指南 · One Card Guide
出同色或同數字的牌、比誰先出完手牌的紙牌遊戲。用禁止、迴轉、+2 和萬用牌扭轉局勢，也可以一次打出多張相同數字的牌來組成連招。
A card game where you match colours or numbers and race to empty your hand. Turn the table with Skip, Reverse, +2 and Wild cards, or play several cards of the same number at once for a combo.
開始玩 ▶操作方式 · Controls
- 電腦：點擊卡牌即可出牌，點擊牌堆即可抽牌。Enter 出牌、Esc 取消，按 1–4 鍵選擇萬用牌的顏色。
- 手機：點擊卡牌、牌堆和 UNO 按鈕。
- Computer: Click a card to play it and click the deck to draw. Enter plays, Esc cancels, and keys 1–4 pick a Wild colour.
- Mobile: Tap the cards, the deck and the UNO button.
遊戲規則 · Rules
- 從 108 張牌中發給四位玩家每人 7 張。
- 打出與最上面那張牌顏色或數字（符號）相同的牌，或打出萬用牌。無牌可出時就抽一張。
- 禁止會跳過下一位玩家，迴轉會改變出牌方向，+2 或萬用 +4 則讓下一位玩家抽牌。
- 剩最後一張牌之前要按下 UNO——忘了按的話，任何人都能抓你，罰抽 2 張！
- 最先出完手牌的人獲勝，並獲得其他所有人手牌點數的總和。
- Four players are dealt 7 cards each from a 108-card deck.
- Play a card that matches the top card's colour or number (symbol), or play a Wild. If you can't play, draw a card.
- Skip jumps the next player, Reverse flips the direction, and +2 or Wild +4 makes the next player draw.
- Press UNO before you're down to your last card — forget, and anyone can catch you for a 2-card penalty!
- The first to empty their hand wins and scores the total value of everyone else's cards.
遊戲模式 · Modes
- 單人遊玩：和 3 個 AI 對手對戰（每回合 30 秒）。
- 線上：最多 4 人，空位由 AI 補上。2 人以上房主就能開始（每回合 20 秒）。
- Solo: Play against 3 AI opponents (30 seconds per turn).
- Online: Up to 4 players, with AI in any empty seats. The host can start with 2 or more (20 seconds per turn).
FAQ
- Is One Card free to play?
- Yes. It is free and runs right in your browser — no download or sign-up needed.
- Can I play One Card on mobile?
- Yes. It works in phone and tablet browsers with on-screen touch controls.
- How do I play One Card with friends?
- Tap Create Room on the room list, then send your friends the invite code or invite link to join the same room.
- Can I play One Card alone?
- Yes. Tap Solo to start right away against AI opponents; AI also fills empty seats online.