RCWeb Symbol Snap
Symbol Snap is a fast shared-screen spotting game for RCWeb. The big screen shows one card full of symbols, every phone shows another card, and everyone races to find the single symbol that appears on both.
It is designed for instant party play: put the display on a TV, projector, laptop, or large monitor, let players scan the QR code, and the round is live as soon as phones join the room. There is no turn order, no setup ceremony, and no waiting for a full table. See the match, tap first, score.
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The Game
Symbol Snap is built around one simple promise: any two cards have exactly one symbol in common. Each round, the display gets one eight-symbol card and every phone gets the same second eight-symbol card. The symbols are rotated, scaled, and arranged differently each time, so the match is visible but never automatic.
The display keeps the room lively with the current card, winner reveal, score table, room code, QR join link, and network status. Phones stay focused on the player action: choose a name, study the phone card, and tap the symbol that also appears on the big screen.
How To Play
Open /symbol-snap/ on the shared screen. Players scan the QR code to open /symbol-snap-control/ on their phones in the same room. New players can join at any time and start on zero points.
When a round starts, compare the display card with the card on your phone. There is always exactly one matching symbol. Tap that symbol on your phone before anyone else finds it.
The first correct tap wins the round and scores 1 point. Symbol Snap highlights the shared symbol, updates the scoreboard, then deals a fresh pair of cards after a short pause.
Wrong guesses matter. If you tap a symbol that is not the match, your phone is locked out for 5 seconds before you can guess again. That keeps the race quick, but rewards careful spotting over random tapping.
The session can run as long as you like. The scoreboard ranks players by score and highlights the leader, so the group can play a short burst, a long race, or simply keep the table running while people drop in and out.
Powered By RCWeb
Symbol Snap uses RCWeb's room-based WebSocket layer to make a shared game out of ordinary browser tabs. The display page and all phone controllers join the same RCWeb room using the rc values injected by the Java server. The display creates a QR link with that room already selected, so each phone arrives at the right table without manual setup.
The display owns the round state. It builds the 57-card symbol deck, chooses the two active cards, finds the one shared symbol, tracks players and scores, validates taps, handles wrong-guess lockouts, and decides when the next round starts. Keeping that authority on the shared screen means every phone sees the same game and reconnects cleanly if it refreshes.
Phones talk to the display through comms.js and RCWeb function calls. A controller registers its player name, receives the current card layout, and sends a pick when the player taps a symbol. After each result, the display pushes updated state back to all controllers: the next phone card, winner reveal, lockout timers, player scores, and leader information. The result feels like a dedicated multiplayer party game, but it is powered by RCWeb's lightweight Java backend and vanilla browser apps.