The idea
One edit, many places
You don’t steer the hero. A level is a start line and a few rules. Press Run, and the rules unfold into moves the hero walks. Change a symbol, and it changes everywhere the rule is used.
Start
AAA
Rule
A
One symbol, and the path changes in three places: rule A appears in the start three times.
216 levels
Six chapters. A new idea in each
One rule
Chapter 1 · 12 levels
Rule in a rule
Chapter 2 · 12 levels
Recursion
Chapter 3 · 12 levels
Two heroes
Chapter 4 · 12 levels
Many places
Chapter 5 · 12 levels
Wiring
Chapter 6 · 12 levels
Three difficulties, three sets of maps
Play your way
Relaxed
No edit limit, 3 hints.
Normal
An edit limit, 1 hint.
Strict
The fewest edits possible, no hints, a limited number of runs.