Mist — free browser game

Each round starts with a short preview: a handful of bright gems appear on the board and all their positions stay visible for a couple of seconds — your only job here is to memorise where they are. When the timer runs out the mist drops and the board turns almost completely dark; only a circular flashlight follows your cursor (or finger). In the dark you click on the spots you memorised: a click that lands close enough to a gem collects it, adds one to the score, and the collected gem keeps a faint glow so you can see your progress. Clear every gem in the round and the next round starts immediately — adding one more gem, shortening the preview slightly, and shrinking the flashlight a little. The whole run lasts 60 seconds; your score is however many gems you collect before time runs out. Tip: during the preview phase, instead of memorising each gem one by one, group them as a reference shape (a triangle, a line, a diagonal) — once the mist falls, remembering positions relationally is far easier than as isolated dots. Misses cost no points, but each empty click eats away seconds. On mobile, drag with your finger to move the flashlight and tap on a remembered spot to collect. R or the 'Restart' button resets at any time; your best run is saved in the browser.