Help us create a bonus campaign using new precursors!

Today's update adds a simple "level editor" with an entirely new set of precursors. Use it to create solutions that manufacture drug molecules of your choosing, and then send us (zach@zachtronics.com) screenshots of your solutions running with the target molecule clearly visible. We'll pick our favorites and include them in an upcoming free bonus campaign.

NOTE: You must have solved all of the puzzles in the main campaign to unlock the bonus campaign and its level editor.

This update also includes fixes for two GIF-related bugs; one involved GIFs sometimes not looping smoothly, while the other involved solutions with only one or two lines of instructions never finishing recording.