How to Play

One wobbly tower, everyone's phone

Wobble Tower is a free party game that runs entirely in the browser — nothing to install. A laptop or TV shows a fragile tower of blocks balancing on a seesaw. Everyone in the room joins with their phone, and each phone becomes an invisible tilt controller.

Here's the joke: in co-op mode the platform doesn't listen to any single player — it feels the average of everyone's tilt. If you lean left and your friend leans right, the tower feels nothing. If you all panic in the same direction, it feels everything. Cooperation or chaos: the tower finds out which one your group is.

Blocks keep dropping from the sky. Keep the stack alive as long as you can. Lose three blocks off the screen and the tower explodes — dramatically.

Ready in 30 seconds

1. Open the game on the biggest screen you have — a TV's browser, a laptop, or a projector: that's the host screen.
2. Everyone else points their phone camera at the QR code on the screen — it opens the controller with the arena code already filled in. (Or type the address and enter the 4-letter code by hand.)
3. Type a name, tap JOIN. iPhones will ask for motion access — allow it, that's the tilt sensor.
4. The host picks CO-OP or VERSUS. Countdown. Go.

Hold the phone flat, like a tray with a drink on it. Small tilts, not big ones — the red glow on your screen means you're overdoing it.

Play it with your hands instead

If nobody has a phone to spare, a webcam will do. On the host screen, switch PHONES to HANDS at the top, and allow the camera when the browser asks. There is no QR code and nothing to join — the screen with the camera on it is the whole setup.

1. Hold a fist. That is your hand on the table — move it and the tower leans with it. It is the resting pose, so you can hold it all round without thinking about it.
2. Open your hand to spend your card — the anvil you drop on a rival, or the shield, which is the same hand and the same moment once somebody has aimed one at you.
3. Straight ahead is re-taken when a round starts, so stand wherever you like and the tower will be upright when you begin.

A small preview appears in the corner. It puts a ring on the hand it is following and a cross where straight ahead is, so you can see both that the camera has you and which way it thinks you are leaning.

A fist that merely relaxes is not an open hand — the two have to be a proper fist and a proper flat palm, and a card only goes if the palm arrives soon after the fist. That is deliberate: a tiring arm drifting open should not throw an anvil at somebody.

Co-op by camera is one player. One camera follows one hand — put your other hand down or it will simply be ignored, marked with a faint dot in the preview. VERSUS is two, one each side of the picture. Hand games keep their own leaderboard, so they are never ranked against a room of phones.

Two ways to lose a tower

CO-OP One tower, shared blame

The whole room balances a single tower together. The platform follows the group average, the bubble level at the bottom shows everyone's tilt (and exactly who is dragging it left — the roster chips rotate live). Survive as long as possible; a gold star lands every 30 seconds. Team score goes on the leaderboard.

VERSUS Last tower standing

2–4 players, the screen splits into lanes: your own seesaw, your own tower, your own tilt. Every lane gets the identical block at the identical moment — same shape, same spot — so the only difference is your hands. Lose three blocks and your tower explodes; the last player with a standing tower takes the win and the leaderboard spot.

Versus also deals every phone one ⚡ ANVIL card per round. Play it and a scowling cast-iron anvil is dispatched at a random rival: a dashed cherry reticle locks onto their lane, their phone buzzes hard, and they get 2.5 seconds. If they're still holding their own unplayed card, it flips to 🛡 SHIELD — it only works while the reticle is on you — and a tap in time raises a dome that bounces the anvil clean off the screen. The parry burns both cards. No shield? The anvil crashes into the tower and stays: a real block, absurdly heavy, visibly furious. It never costs a life if it slides off — the wobble it brings is the whole weapon. Each player can only be targeted once per round, so don't sit on your anvil until the room runs out of victims.

Know your enemies

• Flat rectangles and squares come first — friendly, stackable, they mostly behave.
• Pentagons and hexagons arrive next — flat-sided but tippy, they lean where you'd rather they didn't.
• Circles come last. Circles do not believe in friendship. Circles roll.
• Watch the dashed ghost outline at the top of the screen — it shows the next block and where it will fall, a second and a half early.
• The blocks have eyes. The eyes look where the tower is about to fall. The tower knows.

Advice from fallen towers

• Tiny corrections beat heroic swings. The platform keeps a little momentum — stop correcting before it's level.
• In co-op, agree who "leads" during a crisis. Four leaders average out to zero.
• Holding the phone sideways? Tap the 📱 button on your controller and pick LANDSCAPE — the game remaps your tilt.
• Don't put the phone down: the game notices a motionless phone, gives you a red 3-2-1 countdown, then blows up your tower. Tables don't get high scores.
• A near-miss save (tower almost gone, then rescued) earns a confetti PHEW — worth playing for on its own.

Friends elsewhere can play too

The host's 📨 INVITE FRIENDS button copies one link, and the link works out what to do with itself. Opened on a computer it mirrors the tower live, about a tenth of a second behind. Opened on a phone it explains the missing half: a phone can't be the arena, so it offers to pass the link to a TV or laptop and then scan the QR that screen puts up. Phone in one hand, tower on the big screen — remote wobbling works surprisingly well.

Small print, big font

My phone doesn't tilt anything.

iPhones need the motion permission — it's asked when you tap JOIN. If you declined it, close the tab, reopen, and allow. Both phones and the game need HTTPS, which this site always uses.

My phone screen rotated and the controls flipped.

Android phones lock their screen when you join. iPhones can't be locked by a web page — use the 📱 orientation button, or turn on iOS rotation lock.

How many can play?

Four phones per arena, in either mode: co-op puts all four on one tower, versus gives each its own lane. Watchers: 5 per arena.

Does it cost anything?

No. It's a free browser game. If it made your evening better, there's a ❤️ button on the host screen.

The tower exploded and said my phone was asleep.

The game detected a phone lying still for 6 seconds — resting it on a table stabilizes the tower unfairly, so the tower objects. Loudly.