777 Stack

777 Stack is a quick-thinking number puzzle where tiles with digits drop from above and you must place them so that each stack totals exactly 7, 14, or 21. Each tile changes the running total, so you need to keep the current sum in mind while planning where the next one will land.

Every move tests your focus: sometimes a single piece completes the target, other times you’ll need a careful sequence to avoid overshooting. The game blends simple rules with light mental arithmetic in a warm, glowing arcade atmosphere that rewards clever planning and tight focus.