There's a specific kind of satisfaction in noticing something is wrong before you can explain why.
You're looking at a grid of geometric shapes. Each one appears identical. But one isn't — something in the rotation, the scale, the position is fractionally off. The moment you see it, you can't unsee it.
That's the experience we were after when we built Off By One.
What we were trying to solve
Most puzzle games ask you to be fast, or to remember things, or to react. We wanted to build something that rewarded sustained attention instead — the kind of calm, patient looking you do when you're proofreading or checking a design for alignment errors.
