Mio Path: Draw a path through every tile.

Mio Path is a relaxing one-line puzzle game by Olympheon, an independent app studio. Each level is a small grid: draw one continuous path that visits every tile exactly once, without crossing itself and without skipping a square. Mechanics stack on top of that single rule: arrows force your next step, ice slides the line until it hits a wall, keys unlock doors, portals teleport the path, switches toggle walls, and colour rules add order constraints with shapes for colour-blind play. The game ships with more than 2,500 handmade levels in themed packs, works completely offline, has no timers and no pressure, and is localised into more than 20 languages. Mio Path is free to download on the App Store and Google Play, with optional in-app purchases.