I’m a sucker for interesting online games that don’t have a score or even a goal. In this case, it’s a cartoon space simulator to promote the book What If? 2, by Randall Munroe, the author of the xkcd comics.
You can play it by clicking here. (Don’t worry, I’ll wait.)
The game works like this: You start off with a rocket on a very small planet. Click on the rocket to start, then you can use the arrows on your keyboard to turn on the thruster,
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