I just released a new Alpha, with the long awaited Sandbox Mode! There are also a Level Editor, a Level Cards Sharing System, and the Solutions Browser to see all solutions ever found (for Advanced Features users).
I also edited the first post to make a new presentation and add a few quotes and reviews:
https://www.youtube.com/watch?v=-5wFev6ptiYSupport the gameYou can get the game on the official website through the Humble Widget.
I made a mini-crowdfunding to help to make the game better:
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Great idea and execution, very inspiring!
Having played the first 20 levels (starred+secret paths) in a rush, I really liked the game. What I was missing is a hotkey for single stepping, and in general keyboard shortcuts for editing.
I will add a hotkey for single stepping, that's a good idea. There are several shortcuts already implemented, you can look at the list by clicking on the little "?" help button at the bottom right of the screen, and now (in the new release) by looking at the Options panel.
Additionally, a way to cut the level selection/completion animations could also save precious time.
You can now click anywhere to skip level animations!
Good luck with Steam! The world needs more programming games
Yeah that's right! :D