A fast number-chain puzzle: link neighbouring digits to hit the target number. Free browser game, no download.
Click a chain of neighbouring digits that adds up to the target number.
Number Chain was submitted to SlowDen by CoolMathGames. SlowDen did not make this game - it is published here from the developer's own submission, added on 2026-10-28. It runs in the browser with no download, no install and no sign-up.