Atom Chamber adapts the ray rules of Black Box in Simon Tatham’s Portable Puzzle Collection. Original code by Simon Tatham and contributors, under MIT. Source: https://github.com/chrisboyle/sgtpuzzles/blob/d1e10eb57dd80af4999e698a9ab31f546e9a0b9d/app/src/main/jni/blackbox.c
JavaScript rules translation, chamber layouts and interface prepared for SkillSafe. No Play Store graphics used.