NN555Chain

NN555Chain is an offline match-3 puzzle game built around fast swaps, clear board goals, and steady progression.

Play through 80 levels arranged across four chapters. Each chapter introduces a new obstacle type and keeps the board fresh with new tactics to learn. Swap only adjacent tiles, build valid matches, and use special tiles to break through harder layouts.

The board uses clear visual patterns so tiles are easy to distinguish at a glance. Three-in-a-row clears tiles, four-in-a-row creates a line clear tile, five-in-a-row creates a color clear tile, and L or T shapes create a bomb tile. Legal swaps only count when they create a match or trigger a special tile, and invalid moves snap back without spending a turn.

Every level shows its move budget, goals, and board notes before play starts. Progress is saved locally, so you can resume an unfinished board later. If a board runs out of legal moves, it reshuffles without changing your goals or remaining moves.

The app also includes a chapter map, records, settings, a rules guide, and a privacy page that explains local storage behavior. It is designed for offline play with no account, no ads, and no required network access.