[yakcyll]

The labels as required preconditions take a moment to figure out, but I found it satisfying to do so.

I'm a sucker for graph and topology puzzles, so this was very enjoyable to me. I loved that you could clearly sense progress mounting with each step.

The flashing lights at the end could use a bit of calming down though.

Fantastic prototype, is what this smells like : p

[nzealand]

Very fun.

I also found it took a while to understand the rules, which I enjoyed, but others may not.

You could add a restart button to encourage experimentation, or flash preconditions red when blocking passage to communicate rules more clearly, or start off with a simple puzzle that illustrates one rule then allow people to level up to more complex puzzles with additional rules.

Nice job.