Trail - One-line puzzle game with algorithmic levels

Show HN: Trail – new kind of logic game

Trail is a minimalist logic puzzle where you draw a single continuous line from the ring through every tile on the board. The twist? Beamers act as portals, but if a beamer's twin is already filled, it closes—so you must look before you enter. Drag from the head, swipe anywhere, or tap a tile ahead in the same row or column to navigate. Every level is algorithmically generated, verified, and tuned to be slightly harder than the last. Available for free on the App Store with full-screen offline play and haptics, and also playable on the web.