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World-Changing Inventions. Play it with your friends.

An auction game with 38 inventions. Everyone gets the same budget, bids live on their phones, and the highest total "How much it changed the world" wins. Free for up to 4, no sign-up.

Your friends join on their own phones with a code. No app, no sign-up.

Made by Deadline Day · New in the gallery.

The 38 inventions in this game, A to Z

• Electricity
• The Air Conditioner
• The Airplane
• The Automobile
• The Barcode
• The Battery
• The Bicycle
• The Calculator
• The Camera
• The Compass
• The Computer
• The Concrete Mixer
• The Dishwasher
• The Elevator
• The Internal Combustion Engine
• The Internet
• The Light Bulb
• The Mechanical Clock
• The Microwave Oven
• The Printing Press
• The Radio
• The Refrigerator
• The Sewing Machine
• The Skateboard
• The Smartphone
• The Steam Engine
• The Steam Turbine
• The Stethoscope
• The Telegraph
• The Telephone
• The Traffic Light
• The Transistor
• The Typewriter
• The Umbrella
• The Washing Machine
• The Wheel
• The X-Ray Machine
• The Zipper

Each invention has a hidden score for "How much it changed the world". You only see the scores when the auction is over.

How to play

1. Tap Play this game and send the code to your friends. They join on their own phones.
2. One invention at a time comes up for auction. Bid on the ones you think score highest, and keep money for later.
3. When the budgets are spent, the scores are revealed. The highest total wins.

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Make your own

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The scores are AI estimates. See something that should not be here? Open the game and tap Report this game.