Glyph - The Chain Reaction is a point scoring puzzle app game. Tap on any circle and it will shoot marbles out of its slots. If another nucleus is hit, that circle will shoot its own marbles.
I've only played Glyph a few times. I'm not into it. My leaderboard standing is 250 out of 466. I have no desire to get a higher score.
This game reminds me of another chain reaction game where the object was to clear the board of all the tiles within a certain number of moves. I don't recall the title. It was cloned several times.