Foon-o - Free UNO-Style Online Card Game with Friends or Bots

Open Foon-o and you have a free UNO-style card game running in the browser. Match a card from your hand to the top of the discard pile by color, number, or action symbol; first hand to empty wins the round. There is no account required, nothing to install, and the full ruleset plus all three bot tiers are unlocked from the first deal.

Open Foon-o, click "Play with Friends" to spin up a private room, then share the invite link. Friends join from any modern browser on desktop, tablet, or phone with no account required on either side. The default lobby caps at an 8-player soft cap (the right size for tracking everyone's hand), but the host can stretch the room up to 100 players for a Discord-server-scale chaos lobby.

Open Foon-o, create a private room, and share the invite link with one other person. The room only fills as many seats as you want, so a 2-player friend match is a one-room setup. In a 2-player game the Reverse card acts as a Skip (since reversing direction with two players just sends play back to you), but every other rule is identical to the standard 4+ player version.

In standard UNO and on Foon-o, each player is dealt 7 cards face down at the start of a round. The remaining cards form the draw pile, and the top card is flipped face up to start the discard pile. Foon-o lets a custom room change the starting hand size if you want a faster round (lower count) or a longer one (higher count); the default 7-card hand matches the official Mattel rulebook.

UNO (and Foon-o) is a shedding card game from the Crazy Eights family. On your turn, play a card from your hand that matches the top of the discard pile by color, number, or symbol. If you cannot match, draw a card; if it plays, you can play it immediately, otherwise the turn passes. Action cards (Skip, Reverse, +2, Wild, Wild +4) interrupt the loop. The first player to empty their hand wins the round.

On Foon-o, the action cards work like classic UNO: Skip cancels the next player's turn. Reverse flips turn direction (in a 2-player room it doubles as Skip). Draw 2 (+2) makes the next player draw cards from the draw pile and skips their turn. Wild lets you change the active color. Wild Draw Four (+4) changes the color and forces the next player to draw four cards. Foon-o also adds an optional Flip card that flips every card to its hidden back side mid-round.

A Wild card changes the active color but does not force any player to draw. A Wild Draw Four (+4) changes the active color and makes the next player draw four cards from the pile (or more, if the room has +X stack ranges enabled in Foon-o's custom rules panel). By the official rule, you can only play a +4 if you have no card matching the current color; on Foon-o this is enforced automatically — the +4 will not be selectable from your hand until the rule is satisfied.

Foon-o ships with three bot difficulty tiers — Easy, Average, and Skilled. Easy plays loose enough to forgive while you learn the action cards. Skilled bots track color drift, hold Wilds for late-game rescues, and chain Skips and +2s on whoever is at one card. Spin up a solo lobby with any number of bots, all running the tier you chose, or mix them into a friend room as fillers when a human seat is empty.

Foon-o supports 2–100 players in one room. The default soft cap is 8 (the right size for a real-feeling UNO night where you can still read where everyone is on the action card stack). Past about 12 players the bookkeeping starts feeling chaotic, which is the point — the 100-player cap is built for big group calls, Discord servers, and the Bot Overlord achievement (win one game against 90+ bots).

Foon-o, UNO, Mau Mau, Last Card, and Crazy Eights are all in the same family of shedding card games — the same match-and-discard loop, with regional differences in deck and action cards. Crazy Eights uses a regular 52-card deck and lets the 8 of any suit act as the Wild; UNO uses its own 4-color deck with explicit Wild and action cards. Foon-o is built on UNO-style mechanics with optional toggles (color count, last-one-standing scoring, draw-stack ranges) that re-enable house rules historically familiar to Crazy Eights players.

No. Foon-o runs entirely in the browser on desktop, tablet, or phone — there is no app to install, no app store account, and no save file. Open the page on the device you have and you are at the table. Sign up for an optional Foony account only if you want cross-device level sync, persistent leaderboard ranks, and the cosmetic shop.

Foon-o exposes most of the underlying generator as toggles in the room settings: color count (3–8), digit range, starting hand size, draw-stack range (the +X cards pull a randomized number between min and max), keep-drawing chain rule, last-one-standing scoring (last hand still holding cards wins), double-sided cards (the Flip mode), and the win-on-Wild toggle. Two one-click presets ship out of the box — Flip! and Last One Standing.

Every match on Foon-o pays out account currency that feeds into Foony's shared shop, plus 28 Foon-o achievements that pay out one-time stat buffs (Foony Eats, Foony Drinks, Golden Potions, Scrolls of Knowledge) compounding across every other game on the site. The Foon-o cosmetic catalog has 33 items: 27 card backs and 6 deck themes (Default, Fruit, Robot — a Bot Overlord reward — Emoji, Animal, and Monster). Equipping the flashiest deck never changes legal moves or your odds.