Nilo Chain

Nilo Chain is a number puzzle built around one simple rule: connect tiles that add up to exactly zero. There's no calculator, no exact running total shown on screen — just a directional hint ("getting warmer," "very close") and your own mental math. It's a puzzle game that quietly doubles as arithmetic practice, without ever feeling like a workbook. HOW TO PLAY Tap a number tile, then tap a connected neighbor to grow your chain. Add positive and negative numbers until your selection sums to zero, then submit to clear it and score. You can only undo your most recent tile — so plan your path, don't just grab and hope. CHAIN REACTIONS Clearing a group can trigger automatic cascades — if another valid chain exists elsewhere on the board after tiles fall into place, it clears itself, free, stacking your score with no move spent. SPECIAL TILES - Wildcard tiles clear any chain they're part of, regardless of sum — save them for when you're stuck. - Multiplier tiles double your score for any chain that includes them. OBSTACLE LEVELS Later levels introduce permanently blocked cells that split the board into zones, forcing you to route your chains around gaps instead of just picking whatever's closest. PROGRESSION 30+ levels of increasing difficulty, a 3-star rating system based on how efficiently you solve each one, limited hints when you're truly stuck, and a shuffle option if the board locks up. WHO IT'S FOR If you like number puzzles, mental math, or just want a "one more level" game that keeps your head a little sharper while you play — Nilo Chain is built for short sessions that still make you think. No ads interrupting gameplay. No forced sign-in. Just you, a grid of numbers, and zero.