Game Hub
Small games, clean mechanics, fast rounds.
Two games run on this site; two more open in new tabs — Pi Challenge for memorizing digits of π, and Toon Tone for perceptual color matching with HSB sliders.
Grid puzzle
Mars Rover Game
Fresh obstacle grids each run: pick a start, reveal the target, chain F/L/R commands before the planning timer ends.
Reflex timing
Lockpick Trainer
Arrow-key rhythm: land each segment in the green window. Four clean hits open the lock — reset anytime to chase streaks.
π digits · external
Pi Challenge
Memory drills on the digits of pi — hosted at pi-challenge.com; opens in a new tab.
Color · external
Toon Tone
Ten-round HSB matching scored with perceptual ΔE — at toontone.com; opens in a new tab.