InkTrail

InkTrail is an iPhone puzzle game where you guide the octopus Nerix through sunken temple ruins. Visit rune tiles, release their light, and return to the starting stone with your final move. Early levels introduce the rules step by step; later levels add multi-visit tiles, currents, whirlpools, key runes and locked seals. There is no time limit. The game has 30 free levels in Sunken Ruins, with 30 more in Deep Vaults available as an optional one-time purchase with no subscription. Earn up to three stars per level, build a daily streak, and enable dead-end warnings in Settings for later puzzles. Explore a three-dimensional underwater world with music, sound effects, ambience and haptic feedback adjustable separately. All levels play offline, with progress stored on your device, no account, no advertising and no tracking. Available in English and German for iOS 27 or later.