As a fun side-project, I decided to animate a copy of the Spidertron from Factorio for the community-run Alternative Friday Factorio Fan Facts blog as an easter egg. This was achieved using CSS animations and JavaScript, with some careful optimization done to not slow down the page for smartphone users. A more detailed write up was posted as part of issue #12 of the Alt-F4 blog.

You can control the Spidertron below by clicking / tapping on it, and then selecting a location to move to.
Click on the Spidertron again to have it return home.

The source code is available of github here: