T-Rex Runner is an Easter Egg in Google Chrome which appears when you suddenly lose internet access. Here is the origin of this game.
The dino game is extracted from the Chromium source code in commit 24d8c44
- Press the space bar to jump and to start the game
- Use the down arrow key to duck
You can click here to play online.
You can also play the origin Chrome dino game without turning off your network connections. Just open chrome://dino in your web browser, and you’ll be taken to an "arcade mode" where you can practice in a full-window environment.