Ink Dating
A mobile-first forensic mini-game. You are a questioned-documents examiner: drag to run a solvent extraction on a punched ink disc, read the chromatogram, and estimate the ink's age. The extractable fraction follows a real ageing curve, only works within about two years, is strongly affected by storage conditions, and is far more reliable when compared against a same-ink reference of known age.
Created by haojie.huang
